Computer Hardware. Lect 3: Input / System Unit/Output & Storage
|
|
- Conrad Parsons
- 5 years ago
- Views:
Transcription
1 Computer Hardware Lect 3: Input / System Unit/Output & Storage 1
2 Input Devices: Giving Commands Input is any data or instructions that are entered into a computer. An input device is a type of hardware that gives users the ability to enter data and instructions into the computer s memory. 2
3 Input Devices: Giving Commands The keyboard, the most popular input device, enables data and instruction entry through the use of a variety of keys. 3
4 Input Devices: Giving Commands A pointer device controls an onscreen pointer s movements. A pointer is an onscreen symbol that signifes the command, input, or possible response. 4
5 Input Devices: Giving Commands The mouse is the most popular pointing device. A wheel mouse provides a wheel for easy vertical scrolling on documents or Web pages. 5
6 Input Devices: Giving Commands Mouse alternatives Trackball Pointing stick Touchpad or trackpad Joystick Touch screen Kiosk Stylus 6
7 Input Devices: Giving Commands Alternative specialized input devices include: Microphones for voice or speech recognition Scanner for optical character recognition (OCR) Bar code reader Optical mark reader (OMR) 7
8 Scanning Devices Magnetic-ink character recognition (MICR) Optical-character recognition (OCR). Optical-mark recognition (OMR) 8
9 Magnetic-ink character recognition (MICR) Human readable characters are printed on documents such as cheque using special magnetic ink. The cheque can be read using a special input unit, which can recognize magnetic ink characters, This method ensures accuracy of data entry and improves security. 9
10 Optical-character recognition (OCR). Optical-character recognition (OCR). An optical scanner is a device used to read an image, convert it into a set of 0's and 1's and store it in the computer's memory. The image may be hand-written document, a typed or a printed document or a picture 10
11 Optical-mark recognition (OMR) Special pre-printed forms are designed with boxes which can be marked with a dark pencil or ink. The document is read by a document reader, which transcribes the marks into electrical pulses. Applicable areas include: 1. Order forms containing a small choice of items. 2. Time sheets of factory employees in which start and stop times may be marked 3. Objective type answer papers in exams 11
12 System Unit 12
13 Introducing the System Unit System unit Case that contains the major hardware components of a computer Come in diferent styles Footprints Amount of space that the unit uses 13
14 Introducing the System Unit System unit (con t.) Some have embedded biometric authentication devices such as fngerprint readers, retina scanners, and face recognition systems to prevent unauthorized access. Form factor specifes how the internal components are located within the system unit. 14
15 Diferent System Units 15
16 Inside the System Unit 16
17 How Computers Represent Data Binary numbers Bit Only 0s and 1s Smallest piece of data a computer can work with Either on or of, a 0 or a 1 Eight bits byte a single unit of storage 17
18 How Computers Represent Data Data storage is in bytes Kilobyte (KB) one thousand bytes Megabyte (MB) one million bytes Gigabytes (GB) one billion bytes Terabyte (TB) one trillion bytes Modem s data transfer rate is in bits per second Example gigabits per second (Gbps) Characters Letters, numbers, and symbols converted into numbers the computer understands 18
19 What s on the Motherboard? Motherboard Printed circuit board that contains the electrical circuitry for the computer The majority of parts found on the motherboard are integrated circuits. Includes millions of transistors and carries electrical current A switch that is able to control the electrical signal fow to the circuit 19
20 What s on the Motherboard? Central processing unit (CPU) Integrated circuit chip that processes electronic signals Also known as a microprocessor or processor Is usually covered by a heat sink A heat-dissipating component that drains heat from the chip Instruction An operation performed by the CPU and assigned a specifc number Instruction set The list of CPU instructions for the operations 20
21 What s on the Motherboard? CPU (con t.) Control unit one of the two main parts Retrieves instructions from memory Interprets and performs those instructions Manages the machine cycle or processing cycle, the four-part process performed by the CPU Arithmetic logic unit (ALU) one of the two main parts Performs arithmetic and logical operations Involve adding, subtracting, multiplying, dividing Logical operations involve comparisons between two or more data items. 21
22 What s on the Motherboard? Machine cycle Instruction cycle Fetch: Retrieves program instructions Decode: Determines what the program is telling the computer to do Execution cycle: Execute: Performs the requested action Store: Stores the results to an internal register Registers store data when it must be temporarily stored in the CPU 22
23 What s on the Motherboard? 23
24 What s on the Motherboard? Factors that afect the performance of a CPU include: o Number of existing transistors o Data bus width and word size o Clock speed o Operations per microprocessor cycle o Use of parallel processing o Type of chip 24
25 What s on the Motherboard? Data bus Group of parallel wires that connect the CPU s internal components Width measured in bits Maximum number of bits the CPU can process at once is called the word size Determines which operating systems and software a CPU can run 25
26 What s on the Motherboard? System clock o o o o Electronic circuit that produces rapid pulses and coordinates the computer s internal activities. Clock speed measurement of the electrical pulses generated by the system clock, usually measured in gigahertz (GHz) Superscalar architecture enables the CPU to perform more than one instruction for each clock cycle Pipelining enables the CPU to process more than one instruction at a time improving performance 26
27 What s on the Motherboard? Memory Chips on the motherboard or within the CPU that retain instructions and data Random access memory (RAM) Temporarily stores data and instructions for the CPU Volatile contents erased after computer is shut of Allows CPU to access or store data and instructions quickly through RAM s memory address feature Identifes and locates stored data 27
28 What s on the Motherboard? Memory footprint Amount of RAM the operating system uses while it operates Virtual memory Section of the hard drive set aside to use when RAM gets full 28
29 What s on the Motherboard? Cache memory Small unit of ultrafast memory built into or near the processor Used to store frequently or recently access program instructions or data Faster than RAM More expensive than RAM 29
30 What s on the Motherboard? Read-only memory (ROM) Contains prerecorded instructions to start the computer Nonvolatile contents stored when CPU power of Basic input/output system (BIOS) First code run when the system is powered on Bootstrap loader Program locates and loads the operating system into RAM Complementary metal-oxide semiconductor (CMOS) Starts the power-on self-test and verifes other system components are operating correctly Power-on self-test (POST) Checks circuitry and RAM, marking defective locations 30
31 What s on the Outside of the Box? Outside a system unit? 31
32 Output Devices: Engaging Our Senses Output devices are computer hardware devices that give users the ability to see, hear, or feel the end result of processing operations. The two most popular output devices are monitors and printers. 32
33 Monitor Clarity Clarity: Monitor s clarity is indicated by it resolution, which is measured in pixels. Pixels are individual dots or picture elements that form images on a monitor. For the given monitor size, the greater the resolution (more pixel), the better the clarity of the image 33
34 A monitor s size Size: Monitor s size is by the diagonal of its viewing area. Common size are 15, 17, 19, 21 inches. The larger monitor have the advantage of displaying more information at one time, but they are expensive. 34
35 Output Devices: Engaging Our Senses Monitors display a temporary copy (soft copy) of processed data. Types of monitors include: Cathode-ray tube (CRT) monitors Liquid crystal display (LCD) monitors Active-matrix/thin flm transistor (TFT) monitors 35
36 Output Devices: Engaging Our Senses Cathode-ray tube monitors display colored output and are large in size. CRTs are usually used with older desktop computers. 36
37 Output Devices: Engaging Our Senses Liquid crystal display (LCD) monitors Also called fat-panel displays Thin Used on newer desktops and notebooks Growing in user popularity 37
38 Output Devices: Engaging Our Senses Active-matrix monitors Also known as thin flm transistor (TFT) technology Used for better on-screen color quality Other types of fat-panel displays include: Gas-plasma displays Field-emission displays 38
39 Output Devices: Engaging Our Senses A monitor s size is its diagonal measurement. This is straightforward for LCDs but more complex for CRTs. Quoted size is the size of the screen. Viewable area is the area that is unobstructed by the housing. Both must be disclosed by the manufacturer. 39
40 Output Devices: Engaging Our Senses Printers supply a hard copy of output displayed on a computer s monitor. Types of printers include: Inkjet printers Laser printers Dot-matrix printers Thermal-transfer printers Photo printers Plotters 40
41 Output Devices: Engaging Our Senses Inkjet printers Popular with home users and provide excellent images made up of small dots Advantages: Inexpensive Generate professional color output Disadvantages: Relatively slow Require expensive cartridges 41
42 Output Devices: Engaging Our Senses Laser printers Use electrostatic reproductive technology to produce high-quality output Advantages: Print faster than inkjet printers Black-and-white printing costs less per page than inkjet printers Disadvantages: Color laser printers are still more expensive 42
43 Output Devices: Engaging Our Senses Dot-matrix printers (impact printers) Older, less popular printers Used mostly for printing multipart forms and backup copies Advantage: Able to print 3,000 lines per minute Disadvantage: Poor print quality Noisy 43
44 Output Devices: Engaging Our Senses Thermal-transfer printer Used for industrial applications Uses a heat process to place color inks on paper Advantage: High-quality images Difcult to distinguish from photos Disadvantages: Expensive Slow 44
45 Output Devices: Engaging Our Senses Other output devices include: Speakers LCD projectors DLP (digital lightprocessing) projectors Multifunction devices 45
46 Storage: Holding Data for Future Use Storage is the process of saving software and data. Storage is also called mass storage or auxiliary storage. 46
47 Storage: Holding Data for Future Use Storage is dependent on two parts: A storage device, which has the ability to save data even when the user turns the power of Storage media that run on storage devices: Hard disks Floppy disks Flash memory CDs and DVDs 47
48 Storage: Holding Data for Future Use A hard disk drive (hard disk) High capacity High speed Considered secondary storage (online or fxed storage), compared with RAM, which is categorized as primary storage. 48
49 Storage: Holding Data for Future Use Hard disk drives Are random access storage devices and permit direct retrieval of desired data Contain a coating of magnetic material used for data storage. 49
50 Storage: Holding Data for Future Use Hard disks record data on concentric bands called tracks. Tracks are divided into sectors. A group of two or more sectors is a cluster. 50
51 Storage: Holding Data for Future Use 51
52 Storage: Holding Data for Future Use To keep track of fles, a table of the fle name and its location is stored on the disk by the computer s operating system. The fle allocation table (FAT) is the table created by older versions of Microsoft Windows. The new technology fle system (NTFS) is the present system used for tracking fle locations. 52
53 Storage: Holding Data for Future Use A portion of a hard disk set aside as if it were a physically separate disk is a partition. Partitions are often used to house diferent operating systems. Having partitions for diferent operating systems allows users to interact with programs developed in either system. 53
54 Storage: Holding Data for Future Use Disk cache A type of RAM CPU looks in disk cache frst Can speed up data retrieval 54
55 Storage: Holding Data for Future Use USB fash drive Known as Memory stick Thumb drive Jump drive Is a popular portable or removable storage device Replaced legacy technology of foppy disks and iip disks 55
56 Storage: Holding Data for Future Use CD-ROM or DVD-ROM (compact or digital video disc read-only memory) Data can be read but not altered. CD drive and DVD drive Optical storage devices Use laser beams to store data through: Pits, the indentations, a binary 0 Lands, the fat refective areas, a binary 1 56
57 What You ve Learned??? 57
Computers Are Your Future
Computers Are Your Future Twelfth Edition Chapter 2: Inside the System Unit Copyright 2012 Pearson Education, Inc. Publishing as Prentice Hall 1 Inside the Computer System Copyright 2012 Pearson Education,
More informationIdentify Components of the. Motherboard
Identify Components of the Chipset Motherboard Collection of chips that work together to provide the switching circuitry needed to move data throughout the computer 2013 Pearson Education, Inc. Publishing
More informationComputers Are Your Future
Computers Are Your Future Twelfth Edition Chapter 3: Input/Output and Storage Copyright 2012 Pearson Education, Inc. Publishing as Prentice Hall 1 Input/Output & Storage Copyright 2012 Pearson Education,
More informationIntentionally Blank 0
Intentionally Blank 0 Technology in Action Chapter 2 Looking at Computers: Understanding the Parts 1 Understanding Your Computer: Computers are Data Processing Devices Perform four major functions Input:
More informationArithmetic/logic Unit (ALU)
3D Printer Arithmetic/logic Unit (ALU) Barcode Barcode Printer Barcode Reader Biometric Reader BIOS (Basic input/output system) Bit Bus Bus Interface Unit A printer that uses molten plastic during a series
More informationInformation Communications Technology (CE-ICT) 6 th Class
Information Communications Technology (CE-ICT) 6 th Class Lecture 2: Computer Concepts (Part A) Lecturer: Objectives Hardware Concepts Types of Computer Components of a Computer System Computer Performance
More informationComputers Are Your Future Prentice-Hall, Inc.
Computers Are Your Future 2006 Prentice-Hall, Inc. Computers Are Your Future Chapter 7 Input/Output and Storage 2006 Prentice-Hall, Inc Slide 2 What You Will Learn About ü The purpose of special keys and
More informationINTRODUCTION TO COMPUTERS
INTRODUCTION TO COMPUTERS When we talk about computers, we really are talking about a Computer System. Computer System: It is a combination of Hardware and Software. This combination allows a computer
More informationComputers Are Your Future
Computers Are Your Future 2006 Prentice-Hall, Inc. Computers Are Your Future Chapter 7 Input/Output and Storage 2006 Prentice-Hall, Inc Slide 2 Input Input is any data entered into the computer s memory
More informationInput: is any data or instructions that are used by a computer.
1 What is input? Input: is any data or instructions that are used by a computer. Input devices: are hardware used to translate words, sounds, images, and actions that people understand into a form that
More informationComputers Are Your Future
Computers Are Your Future 2008 Prentice-Hall, Inc. Computers Are Your Future Chapter 6 Inside the System Unit 2008 Prentice-Hall, Inc. Slide 2 What You Will Learn... Understand how computers represent
More informationChapter 1. Computer Fundamentals-I
1. Input Devices: Chapter 1. Computer Fundamentals-I The devices which are used to input the data and the programs in the computer are known as "Input Devices" or Input device can read data and convert
More informationParts are adapted from Windows 98 by Mark Twain Media, Inc. A Computer System has Hardware and Software
Parts are adapted from Windows 98 by Mark Twain Media, Inc. A Computer System has Hardware and Software All the parts--monitor, printer, hard drive, etc.-- cables, cabinets, and programs that make a computer
More informationTypes of Data. PE 231 Education Media AND Technology. Information. Assessment. Information Concepts
Types of Data Data Represented by PE 231 Education Media AND Technology Alphanumeric data Image data Audio data Numbers, letters, and other characters Graphic images or pictures Sound, noise, tones Video
More informationChapter 4 The Components of the System Unit
Chapter 4 The Components of the System Unit The System Unit What is the system unit? Case that contains electronic components of the computer used to process data Sometimes called the chassis p. 184 Fig.
More informationPowerPoint Presentation to Accompany. Chapter 4. Hardware. Copyright 2014 Pearson Educa=on, Inc. Publishing as Pren=ce Hall
PowerPoint Presentation to Accompany Chapter 4 Hardware Objectives 1. Explain the function of the CPU. 2. Identify the parts of a system unit and motherboard. 3. Compare different types of storage devices.
More informationElectricity: Voltage. Gate: A signal enters the gate at a certain voltage. The gate performs operations on it, and sends it out was a new signal.
Hardware CSCE 101 Electricity: Voltage Gate: A signal enters the gate at a certain voltage. The gate performs operations on it, and sends it out was a new signal. The signals voltage will either be between
More informationCopyright 2012 Pearson Education, Inc. Publishing as Prentice Hall
1 Technology in Action Chapter 2 Looking at Computers: Understanding the Parts 2 Chapter Topics Functions of a computer Data versus information Bits and bytes Input devices Output devices Processing Storage
More informationFull file at
Exam Name Full file at https://fratstock.eu MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) is data that has been organized or presented in a meaningful
More informationChapter One. Introduction to Computer System
Principles of Programming-I / 131101 Prepared by: Dr. Bahjat Qazzaz -------------------------------------------------------------------------------------------- Chapter One Introduction to Computer System
More informationIntroduction To Computers: Hardware and Software
Page 1 Introduction To Computers: Hardware and Software In this section of notes you will learn about the basic parts of a computer and how they work. Page 2 What Is Hardware? A computer is made up of
More informationTrue/False Indicate whether the statement is true or false. Bubble A for True and B for False
1A Name _ Midterm Review Part 1 Lesson 1 and 2 True/False Indicate whether the statement is true or false. Bubble A for True and B for False 1. A computer is an electronic device that receives data (input),
More informationTrue/False Indicate whether the statement is true or false. Bubble A for True and B for False
1 Name Midterm Review Part 1 Lesson 1 and 2 "B" True/False Indicate whether the statement is true or false. Bubble A for True and B for False 1. Eight bits are equal to one byte. 2. A computer is an electronic
More informationInside the Computer System
Inside the Computer System What s on the Motherboard? What s on the Motherboard? What s on the Motherboard? Parallel processing o Method where more than one processor performs at the same time faster processing
More informationLesson 2 Essential Computer Concepts
Essential Computer Concepts Computer Literacy BASICS: A Comprehensive Guide to IC 3, 3 rd Edition 1 Objectives Identify and describe standard and specialized input devices. Identify and describe standard
More informationParts of Computer hardware Software
Parts of Computer Parts of Computer If you use a desktop computer, you might already know that there is not any single part called the "computer." A computer is really a system of many parts working together.
More informationLesson 5 Computer Hardware
Computer Hardware Computer Literacy BASICS: A Comprehensive Guide to IC 3, 5 th Edition 1 Objectives Describe how a computer represents data. Identify system components for input and output. Define input
More informationWhat is the typical configuration of a computer sold today? 1-1
What is the typical configuration of a computer sold today? 1-1 Computer Hardware Components In this chapter: How did the computer become known as the stored-program computer? Do they all have the same
More informationINFORMATION SYSTEM PARTS AND COMPUTER TYPES
INFORMATION SYSTEM PARTS AND COMPUTER TYPES PARTS OF INFORMATION SYSTEM People are end users who use computers to make themselves more productive. Hardware refers to the physical components of your computer
More informationHomeschool Enrichment. Input & Output
Homeschool Enrichment Input & Output Overview This chapter covers: Different types of keyboards and pointing devices Types of scanners, readers, and digital cameras What audio input is Types of display
More informationIntroduction To Computers: Hardware
Introduction To Computers: Hardware In this section of notes you will learn about the basic parts of a computer and how they work. What Is Hardware? A computer is made up of hardware. Hardware consists
More information15/09/15. Introduction to Computers & The Internet. Contents. Computer hardware and software. Input and output devices CPU. Memory.
Introduction to Computers & The Internet Dr. Ahmad Reeves Computer Science Dep. Lecture 2 Contents Computer hardware and software Input and output devices CPU Memory Storage Motherboard Computers Have
More informationDiscovering Computers 2008
Discovering Computers 2008 Chapter 7 Storage 1 1 Chapter 7 Objectives Differentiate between storage devices and storage media Describe the characteristics of magnetic disks Describe the characteristics
More information4) Apple's OS X and Microsoft Windows are examples of software. A) utility B) application C) operating system D) communication
Technology in Action Complete, 13e (Evans et al.) Chapter 2 Looking at Computers: Understanding the Parts 1) Computers use language consisting of 0s and 1s. A) symbol B) binary C) byte D) system 2) In
More informationLesson 1: Computer Concepts
Lesson 1: Computer Concepts Learning Objectives After studying this lesson, you will be able to: Identify the basic parts of a computer system Describe the difference between random access memory and storage
More informationComponents of a personal computer
Components of a personal computer Computer systems ranging from a controller in a microwave oven to a large supercomputer contain components providing five functions. A typical personal computer has hard,
More informationInput output and memory devices
Input output and memory devices One marks 1. What is cache memory The very high speed memory present between CPU and RAM 2. Expand the term OCR Optical Character Recognition (Recognizer) 3. Expand the
More informationCh. 1: Computer System part I
Chapter 1 Computer System Ch. 1: Computer System part I Benjamas Panyangam 2013 Revision by Suphakit Awiphan Ph.D. Adapted for English Section by Kittipitch Kuptavanich And Prakarn Unachak Computer Classification
More informationLesson 2: Input, Output, and Processing
Lesson 2: Input, Output, and Processing TRUE/FALSE 1. After data is processed, it is presented to the user through an input device. ANS: F REF: Mod1-28 2. A laser virtual keyboard is packaged in a case
More informationManagement Information Systems OUTLINE OBJECTIVES. Information Systems: Computer Hardware. Dr. Shankar Sundaresan
Management Information Systems Information Systems: Computer Hardware Dr. Shankar Sundaresan (Adapted from Introduction to IS, Rainer and Turban) OUTLINE Introduction The Central Processing Unit Computer
More informationChapter Three. Hardware Basics: Peripherals
Chapter Three Hardware Basics: Peripherals After reading this chapter, you should be able to: List examples of input devices and explain how they can make it easier to get different types of information
More informationDefining Computers. Defining Computers. Understanding Essential Computer Concepts
Understanding Essential Computer Concepts Defining Computers A high-speed idiot must be told exactly what to do by humans and programs step-by-step instructions An electronic device that accepts input,
More informationQuestion. Announcement. Computer Hardware. Definition of a Computer. Essential Parts. The Box (CPU) input/output device that processes information
Question Announcement What are the three essential components of a modern computer? Be general or specific Definition of a Computer A computer is an device that receives information (input), processes
More informationChapter 4 The Components of the System Unit
Chapter 4 The Components of the System Unit Chapter 4 Objectives Differentiate among various styles of of system units Differentiate among the the various types of of memory Identify chips, adapter cards,
More informationZimmer CSCI /24/18. CHAPTER 1 Overview. COMPUTER Programmable devices that can store, retrieve, and process data.
CHAPTER 1 Overview COMPUTER Programmable devices that can store, retrieve, and process data. COMPUTER DEVELOPMENTS- Smaller size - processors (vacuum tubes -> transistors ->IC chip) Microprocessor - miniaturized
More informationIntroduction To Computer Hardware
Introduction To Computer Hardware In this section of notes you will learn what are the basic parts of a computer and how they work. High Level View Of A Computer Buses Connect the different parts of the
More informationAngel International School - Manipay 1 st Term Examination November, 2015 ICT
Grade 07 Angel International School - Manipay 1 st Term Examination November, 2015 ICT I. Underline the correct answer. Duration: 2 Hours Index No:- 1) Components of a computer CPU are (a) ALU, CU (b)
More informationHardware & Input/Output
Hardware & Input/Output CIT 100 Norm Downey Why Binary? Binary is a numbering system that uses only two digits 0 s and 1 s Electricity within a computer s circuitry can only be in one of two states: On
More informationIntroduction to Computers
Introduction to Computers Considers: Definition of computer Computer system devices Central Processing Unit Introduction to software What Is A Computer? A computer is an electronic device, operating under
More informationPC Basics Introduction to PCs
PC Basics Introduction to PCs A. The Equipment: External Hardware & Internal Hardware 1. CD-ROM CD-ROMs are Compact Discs, read-only, removable data storage media. CD Drives read the data encoded on the
More information2011 Francisco Delgadillo
1800 s: Analytical Engine Charles Babbage Dawn of Human Concept of Numbers Abacus 1642: Pascal s Machine 1880: Mechanical Tabulator Herman Hollerith 1674: Leibniz Calculating Machine 1911: Hollerith s
More informationChapter 2: Computers: The Machines Behind Computing.
Chapter 2: Computers: The Machines Behind Computing. TRUEFALSE 1. Computers perform all tasks using a combination of arithmetic and logical operations. 2. Fourth-generation languages (4GLs) are also called
More informationChapter 2 Computer Hardware
Chapter 2 Computer Hardware Learning Objectives LO2.1: Understand how data is represented to a computer LO2.2: Identify the parts inside the system unit LO2.3: Explain how the CPU works LO2.4: Describe
More informationHomeschool Enrichment. The System Unit: Processing & Memory
Homeschool Enrichment The System Unit: Processing & Memory Overview This chapter covers: How computers represent data and programs How the CPU, memory, and other components are arranged inside the system
More informationA+ Guide to Hardware: Managing, Maintaining, and Troubleshooting, 5e. Chapter 1 Introducing Hardware
: Managing, Maintaining, and Troubleshooting, 5e Chapter 1 Introducing Hardware Objectives Learn that a computer requires both hardware and software to work Learn about the many different hardware components
More information- Input hardware - Processing hardware - Storage hardware
INTRODUCTION TO COMPUTER HARDWARE A Computer system can be broadly classified in to four parts namely: - Input hardware - Processing hardware - Storage hardware - Output hardware A computer is only useful
More informationCOMPUTER ORGANIZATION & SKILLS
UNIVERSITY OF BABYLON 2018/ 2019 COLLEGE OF SCIENCE FOR WOMEN FIRST CLASS COMPUTER DEPARTMENT COMPUTER ORGANIZATION & SKILLS LECTURES PREPARED BY: LECTURER: Ahmed Mohammed Hussein 2018-2019 0University
More informationPARTS OF THE COMPUTER. 2nd ESO IES CAP DE LLEVANT
PARTS OF THE COMPUTER 2nd ESO IES CAP DE LLEVANT 1. COMPUTING OR INFORMATION TECHNOLOGY The branch of engineering science that studies (with the aid of computers)the procedure of calculating and information
More information2016 P C Basics Page 1
PC Basics with Windows 10 Introduction to PCs Mercer County Library System Brian M. Hughes, County Executive A. The Equipment: External Hardware & Internal Hardware 1. CD-ROM CD-ROMs are compact discs,
More informationBUYING A COMPUTER TERM 2 AIT
BUYING A COMPUTER TERM 2 AIT HARDWARE COMPONENTS AND FUNCTIONS describe the components of a multimedia computer system processing (central processing unit) input devices e.g. mouse, keyboard output devices
More informationSECTION 2 (Part B) Types And Components Of Computer Systems. Sophia Pratzioti
SECTION 2 (Part B) Types And Components Of Computer Systems 2 Hardware & Software Hardware: is the physical parts of the computer system the part that you can touch and see. Hardware can be either external
More informationAbout the Presentations
About the Presentations The presentations cover the objectives found in the opening of each chapter. All chapter objectives are listed in the beginning of each presentation. You may customize the presentations
More informationINTRODUCTION TO INFORMATION & COMMUNICATION TECHNOLOGY (ICT) LECTURE 3 : WEEK 3 CSC-110-T
INTRODUCTION TO INFORMATION & COMMUNICATION TECHNOLOGY (ICT) LECTURE 3 : WEEK 3 CSC-110-T Credit : (2 + 1) / Week 2 TEXT AND REF. BOOKS Text Book: Peter Norton (2011), Introduction to Computers, 7 /e,
More informationHARDWARE. There are a number of factors that effect the speed of the processor. Explain how these factors affect the speed of the computer s CPU.
HARDWARE hardware ˈhɑːdwɛː noun [ mass noun ] the machines, wiring, and other physical components of a computer or other electronic system. select a software package that suits your requirements and buy
More informationCMSC 1513 Lecture 1.2
Key Point: A computer is an electronic device that stores and processes data. Hardware Software Hardware comprises the visible, physical elements of the computer. Software provides the invisible instructions
More informationChapter 2: A Closer Look at Hardware and Software
Understanding Computers in a Changing Society, 3 rd Edition Chapter 2: A Closer Look at Hardware and Software Learning Objectives Understand how data is represented to a computer. Identify several types
More informationIntroduction to Computers. Computer Science Department 101COMP حال - 3 للكليات العلمية
Introduction to Computers Computer Science Department 101COMP-3 101 حال - 3 للكليات العلمية )الطب, الهندسة, الحاسب, العلوم, ادارة األعمال, اللغة االنجليزية( 1 1.1 What is Computer? Computer is a programmable,
More informationSir Sadiq s computer notes for class IX. Chapter no 3. Input/Output Devices
12 Q: What are Input Devices? Ans: Input Devices: Input devices are physical equipment that read or translate data consisting of alphabets, numbers or other symbols into electronic impulses, which can
More informationTECHNOLOGY IN ACTION. Chapter 2. Alan Evans * Kendall Martin * Mary Anne Poatsy. Looking at Computers: Understanding the Parts
TECHNOLOGY IN ACTION Alan Evans * Kendall Martin * Mary Anne Poatsy Chapter 2 Looking at Computers: Understanding the Parts Understanding Digital Components Understanding Your Computer Input Devices Output
More informationKULLEĠĠ SAN BENEDITTU Secondary School, Kirkop
KULLEĠĠ SAN BENEDITTU Secondary School, Kirkop Mark HALF YEARLY EXAMINATION 2015/2016 FORM 4 ICT TIME: 1h 30min Page 1 2 3 4 5 6 7 8 9 10 Global Mark Max. Mark 6 8 6 10 6 8 14 16 16 2 100 Mark DO NOT WRITE
More informationKULLEĠĠ SAN BENEDITTU Secondary School, Kirkop
KULLEĠĠ SAN BENEDITTU Secondary School, Kirkop HALF YEARLY EXAMINATION 2016/2017 MARKING SCHEME Year 9 ICT TIME: 1h 30min Question 1 2 3 4 5 6 7 8 9 Global Mark Max. Mark 10 12 26 8 16 6 13 5 4 100 Mark
More informationSystem Unit Components Chapter2
System Unit Components Chapter2 ITBIS105 IS-IT-UOB 2013 The System Unit What is the system unit? Case that contains electronic components of the computer used to process data Sometimes called the chassis
More informationCREATED BY M BILAL & Arslan Ahmad Shaad Visit:
CREATED BY M BILAL & Arslan Ahmad Shaad Visit: www.techo786.wordpress.com Q1: Define microprocessor? Short Questions Chapter No 01 Fundamental Concepts Microprocessor is a program-controlled and semiconductor
More information2) Computers use a language consisting of 0s and 1s. A) symbol B) binary C) byte D) system
Technology In Action, Complete, 14e (Evans et al.) Chapter 2 Looking at Computers: Understanding the Parts 1) What is the difference between data and information? A) Data represents a fact. Information
More informationIntroduction To Computer Hardware. Hafijur Rahman
Introduction To Computer Hardware Lecture 2 Hafijur Rahman What is a Computer? A computer is an electronic device, which can input, process, and output data. input processing output A computer is a machine
More informationComputer Concepts and C Programming. Unit I 06CCP13
Computer Concepts and C Programming () Unit I Unit Division Unit-I Introducing Computer Systems Interacting with Computer Unit-II Processing Data Storing Data Unit-III Using Operating Systems Networks
More informationFull file at
Computers Are Your Future, 12e (LaBerta) Chapter 2 Inside the System Unit 1) A byte: A) is the equivalent of eight binary digits. B) represents one digit in the decimal numbering system. C) is the smallest
More informationmachine cycle, the CPU: (a) Fetches an instruction, (b) Decodes the instruction, (c) Executes the instruction, and (d) Stores the result.
Central Processing Unit (CPU) A processor is also called the CPU, and it works hand in hand with other circuits known as main memory to carry out processing. The CPU is the "brain" of the computer; it
More informationChapter 2. Prepared By: Humeyra Saracoglu
Chapter 2 The Components of the System Unit Prepared By: Humeyra Saracoglu The System Unit What is the system unit? Case that contains electronic components of the computer used to process data Sometimes
More informationComputer Organization
Chapter 5 Computer Organization Figure 5-1 Computer hardware :: Review Figure 5-2 CPU :: Review CPU:: Review Registers are fast stand-alone storage locations that hold data temporarily Data Registers Instructional
More informationQ1. Briefly describe the characteristic features of input and output devices of a computer system.
Q1. Briefly describe the characteristic features of input and output devices of a computer system. Answer-> Characteristic of input and output devices of a computer system: Input Devices: An input device
More informationCOMPUTER SYSTEMS. Section 1
COMPUTER SYSTEMS Section 1 BITS AND BYTES In order for information to flow through a computer system and be in a form suitable for processing, all symbols, pictures, or words must be reduced to a string
More informationMain Parts of Personal Computer
Main Parts of Personal Computer System Unit The System Unit: This is simply the box like case called the tower, which houses the motherboard, which houses the CPU. It also houses all the drives, such as
More informationComputers Are Data Processing Devices
Computers Are Data Processing Devices A computer s five functions: Inputs data Stores data Does arithmetic (add, subtract, multiply, divide) Outputs data Makes decisions 1 Data vs. Information Data: Representation
More informationAn Overview of the Computer System. Kafui A. Prebbie 24
An Overview of the Computer System Kafui A. Prebbie -kafui@kafui.com 24 The Parts of a Computer System What is a Computer? Hardware Software Data Users Kafui A. Prebbie -kafui@kafui.com 25 The Parts of
More information1.1 Bits and Bit Patterns. Boolean Operations. Figure 2.1 CPU and main memory connected via a bus. CS11102 Introduction to Computer Science
1.1 Bits and Bit Patterns CS11102 Introduction to Computer Science Data Storage 1.1 Bits and Their Storage 1.2 Main Memory 1.3 Mass Storage 1.4 Representation of information as bit patterns Bit: Binary
More informationComponents of a Computer System
Hardware Outline 1. Hardware Outline 2. What is a Computer?/Components of a Computer System 3. Hardware That Computers Typically Have 4. Hardware Components 5. Central Processing Unit (CPU) 6. Central
More information1 Anatomy of a Digital Computer
1 Anatomy of a Digital Computer 1.1 Introduction We should keep in mind that a computer is a programmable machine. The two main characteristics of a computer are: (i) it responds to a specific set of instructions
More informationDigital Planet: Tomorrow s Technology and You. George Beekman Ben Beekman. Tenth Edition
Digital Planet: Tomorrow s Technology and You George Beekman Ben Beekman Tenth Edition Digital Planet: Tomorrow s Technology and You Chapter 3 Hardware Basics Peripherals Chapter 3 Objectives List several
More informationChapter Two. Hardware Basics: Inside the Box
Chapter Two Hardware Basics: Inside the Box After reading this chapter, you should be able to: Explain general terms how computers store and manipulate information. Describe the basic structure of a computer
More informationIntroduction to computers
Introduction to Computers 1 Introduction to computers You will learn what are the basic components of a computer system and the rudiments of how those components work. Are Computers Really So Confusing?
More informationComputer Devices Part 1 25 Question(s) Test ID:
Computer Part 1 25 Question(s) Test ID: 148114 Name: Date: 1) Match the term with the definition Output s Storage How to tell it what to do Allows the user to enter information into a system, such as a
More informationPadasalai.Net s Computer Instructor TRB Exam Study Material Chapter One Introduction to Computer
t et t et w Pai.Net s Computer Instructor TRB Exam Study Material Chapter One Introduction to Computer t t t t Computer A computer is an electronic device, operating under the control of instructions stored
More informationName: Date: Hour: The abacus (still in use today) is about 5,000 years old. Not a computer.
Introduction to Computers - Intel: The Journey Inside Name: Date: Hour: Directions: Read/review each lesson and write your short answers on this paper. If there is a video available, watch it using headphones.
More informationContents: Computer definition Computer literacy Computer components Computer categories Computer usage. Tablet PC
bas design Prepared by: Assoc. Prof. Dr Bahaman Abu Samah Department of Professional Development and Continuing Education Faculty of Educational Studies Universiti Putra Malaysia Serdang Contents: Computer
More informationDiscovering Computers Chapter 5 Input
Discovering Computers 2009 Chapter 5 Input Chapter 5 Objectives Define input List the characteristics of a keyboard Describe different mouse types and how they work Summarize how various pointing devices
More informationThe Components of the System Unit
The Components of the System Unit The System Unit What is the system unit? Case that contains electronic components of the computer used to process data Sometimes called the chassis system unit system
More informationComputer Technology Flash Card 2
Computer Technology Flash Card 2 Mouse An input device that allows the user to manipulate objects on the screen by moving the mouse along the surface of a desk. Data Refers to the symbols that represent
More informationSahalsoftware college. Welcome To understanding Basic Computer Concept
Welcome To understanding Basic Computer Concept 1 Chapter1: Understanding Computer Concepts What is a computer? A computer is a machine that takes in data, processes if following a set of instructions
More informationInformation Technology Training Package ICA99
The Components of a Computer System The basic components of the computer have not varied since the earliest computers were made in the early 1950 s. The only real changes have been in the number and variety
More information