Computer Booklet. 1st preparatory. Computer Department. Name :.. Class :..

Transcription

1 Computer Booklet Name :.. Class :.. 1st preparatory Computer Department

2 Lesson 1 Computer System Basics Computer: is an electronic set which has the ability to store data and process them to reach certain results {information} by doing logical and mathematical processes using series of logical arranged instructions called the program. Laptop Desktop Computer Smart Devices - 1

3 A complete computer system consists of four parts: The computer system consists of several components working together to enable the computer to do its function. The most important components are: 1) Data & information. 2) Hardware. 3) Software. 4) Human ware. Humanware consists of bits of information that's stored or used by a computer, it is organized into files, it does not have any meaning until it is processed and turned into something useful (Information). computer stores data of all types: 1) Words (Text). 2) Numbers. 3) Images. 4) Sounds and Videos. - 2

4 Numbers Letters Symbols File is a set of collected data in one location and has a name Is the result of the processing of data and it may be in the form of reports, schedules or Graphs. Data Processing Information For Example: 1, 2 (Data type numbers) 1+2 (addition Process) =3 (Result) - 3

5 *Any part of the computer that you can see and touch. *They include system unit, the screen, keyboard, the mouse etc. *They can be divided into: Input Units System Unit Hardware Output Units Storage Unit 1- Motherboard The physical arrangement in a computer located on the back side or at the bottom of the computer case. It allocates power and allows communication to the CPU, RAM, and all other computer hardware components. Motherboard Computer Case - 4

6 2- Main Memory A- Random Access Memory (RAM): Is a computer's temporary storage place, where it gets work done it is the memory which the user use. The amount of Ram is a very important factor in a computer performance. It loses its contents when an electrical interruption happens B- Read-only memory (ROM): It contains the necessary programs to run the device (Bios) Those programs are stored in it from the manufacture And it was named the memory of reading only because Normal User can read and can't overwrite, Also It is called permanent memory because its content is static and not affected by the electrical interruption. - 5

7 3-Computer Processor: It s hidden inside the computer known as the Central Processing Unit (CPU) the brain of the computer, it is the part of the computer that performs all the work, it calculates, it processes and keeps things running smoothly. The Processor is consists of two main parts : - Arithmetic and Logic Unit (ALU) - Control Unit - 6

8 Used to store data and information which can be retrieved at any time according to the needs of the User PC processes data in streams of bits (the smallest component of computer data) it can be 1 or 0 known as the binary system. Every byte has 8 bits which forms a letter. Unit Abbreviation Size Symbol Equivalent Byte - 8 Bits Kilobyte KB 1024 Byte A single letter, number or symbol. A one-page, double-spaced letter Megabyte MB 1024 Kilobyte A best-selling novel Gigabyte GB 1024 Megabyte An encyclopedia Terabyte TB 1024 Gigabyte A bookstore - 7

9 To convert between units of measurement / 8 Byte / 1024 KB bit 8 Byte 1024 Unit of measurement for processor speed (Hz & its multiplier ) / 1000 KHz MHz 1000 Storage Devices examples - 8

10 Components used to insert data into the computer Components used to display computers work to you - 9

11 Is a program that tells your computer what to do, It translates between users and computers and it can be divided into: Operating Systems (Linux Windows) Applications(Formatting Text Programs) Utility Programs(Anti- Virus, PDF Tool) Programming Languages (C++ ) They are what makes a computer runs. Tells computers how to store data in an organized way. Makes sure that all the different input and output devices are working together. They are grouped according to the task they are performing. - 10

12 Is a system program designed to perform a specific task related to the operation of the computer when requested to do by the computer user Closed Source Programs It is software that you can't see the source code which has been written with. It is only available to programmers and designers or the manufacturer of this software. *Source code is a special code which compiles this program. - 11

13 Open Source Programs: Source Code of those programs is available for use, modification, development and distribution. Comparison between Open Source & Closed Source Closed Source Programs Cost is determined depending on the license of use The development of the source code is made by programmers Belongs to the owner Unauthorized to use without License Open Source Programs Often available free of charge The source code is available for everyone to participate in Modification and development Provide free software distribution to others Without restrictions - 12

14 Software is divided based on the rights of ownership into three types: 1- Freeware The entity responsible allows the user to take full advantage of the software without any charges. 2- Shareware It is a trial version of the original software with limited possibilities and limited duration and after the expiration of the period you can buy it. 3- Software that is not authorized for use except by buying the original copy protected by the product number and uses the phrase (All rights reserved to..) 1) Designer: Graphic designer develops drawing as in the production of magazines, and advertisement. 2) Analysts : Those who analyze data to get information. - 13

15 3) Programmers: Those who write programs according to the specifications determined by the computer software engineers and system analysts. -The programmers write codes in different programming languages as java and C++ depending on the purpose of the program. 4- User: - 14

16 Q1: Choose the correct answer 1- Touch Screen is device A) Input Only C)Output Only B) Input and Output together D)None of the above 2- Choose an Output Device A) Printer C) Keyboards B) Mouse D) Microphone 3- The memory which stores data temporarily A) RAM C) ROM B) Flash Memory D) all of the above 4- Three Kilobyte consists of. Byte A) 3*1024 C) 1024*1024*1024 B) 3*1000 D) None of the above Q2: Complete the following sentences 1- Examples of Computers..,,.. 2-Basic Components of the Computer system..,.,..,... 3-Examples of Input Units.,.,. 4- The Unit measurement of the processor speed is - 15

17 Q3: put ( ) or ( ) : 1-CPU is the brain of the computer. ( ) 2-A complete computer system consist of 3 parts. ( ) 3-(keyboard, Joy stick and light pen) are types of hardware. ( ) 4-ROM loses its contents when an electrical interruption happens. ( ) 5- (Linux Windows) are operating systems. ( ) Q4: Write the scientific terms: 1-It is a program that tells your computer what to do. 2-It is a special code which compiles this program. 3-It is the result of the processing of data. (...) ( ) ( ) 4- It is software that you can't see the source code which has been written with. 5- Those who write programs according to the specifications (.) determined by the computer software engineers and system analysts. Q5: Answer the following Questions: ( ) Why does the Permanent memory called with that name? - 16

18 Lesson 2 Operating Systems Operating system is the most important kinds of computer programs as there must be an operating system installed in the computer to be able to run the other types of different programs and applications and managing the Hardware of the computer. **Operating system definition: It is a set of programs responsible for managing the hard ware of the computer. On one hand it is the communication between the user with his programs and the hard ware on the other hand. Users can interact directly with the operating system through a user interface such as a command Prompt (Terminal) or a graphical user interface (GUI). Start the computer Search for OS in hard drive Load OS basic contents to RAM command Prompt (Terminal) Ready to receive commands from the user It is a user interface that is navigated by typing commands at prompts using Keyboard, instead of using the mouse. - 17

19 Graphical User Interface (GUI) - Contains the orders, instructions and various shows in the form of lists, graphics and toolbars. - Showing programs in the form of regular windows. - The ability to run several programs at the same time. - Has the ability to change the languages of the applications. - Providing browsers to the web site pages. - The basic input module which is used to deal with it is the mouse. - 18

20 Operating System is responsible for : 1-Managing the physical components of the computer (Hardware) 2-Organize the dealing between software and memory. 3-Safety (Password) 4-Transferring data between different units of the device and save on storage units. 5- Provides an interface to the user, from which the user can deal with the device. USER Applications Operating System Hardware Android Apple Macintosh - 19

21 Closed Source Operating Systems: 1- Mac OS This system is dedicated to Apple Macintosh Computers It has an attractive User Interface which is easy to use. 2- Windows OS This system is the most famous and popular operating system for personal computers. Open Source Operating Systems: 1- Linux: Is an operating system which is easy to use and has the ability to modify and develop. Has different distributions (Ubuntu Fedora) - 20

22 Operating Systems for mobile phones There is an Open Source and Closed Source OS Android is an example for Open Source OS which is used in mobile phones and Tablets. The basic components of the opening screen in different operating systems are similar in: 1- Background: consists of a color or an image which can be changed by the user. 2- Icons: small symbols are used to start different programs by double click the mouse. 3- Bars : Contains a set of Icons display some programs on the operating system and other Icons to manage some settings such as (date time-voice network). Note: The computer can have more than one operating system but when the computer start you should select only one OS to load. - 21

23 Q1: write (T) in front of the true sentence and (F) in front of the false sentence. 1- We should install the Operating System on the computer device in order to be able to use the applications and other programs. ( ) 2- The User can give orders and instructions to the operating system using the Command Prompt. ( ) 3- Mac OS X is an Open Source Operating System. ( ) 4- Android is an Open Source Operating System. ( ) 5- The computer can have more than one operating system. ( ) Q2: Answer the following questions 1- Specify two jobs to the Operating System Explain two of the best advantages of the Graphical User Interface (GUI)

24 Lesson 3 Dealing with files and folders The most important feature of the operating system is its ability to control the File management and organize them into folders and indexes. Any Operating System depends on "File System" Which is used to control how to store, retrieve, organize and manage files. File: Is a collection of Data which is stored within the storage unit with various types and extensions. The user can handle it either with retrieving, modifying, deleting, or printing them. Any image, Text Document, sound clip, or video is a File To organize the related files in a same place put them in a Folder The File Name consists of : 1- The name of the File (any name) 2- The extension (file type) 3- Dot ( between name and type) Hello Dot. txt File Name Extension (File Type) - 23

25 Types of Files : 1- Video files Those files contain sound clips and the image which is made by the video or sound programs. 2- Image Files It is created by drawing programs and has different extensions according to its resolution and size. 3- Text Files Created by some Desktop Files such as (Microsoft Office Libre Office) - 24

26 4- System Files Belongs to the Operating System, Programs and the devices connected to the computer. * To create a text file or.txt file on a computer 1- Open a text editor such as Notepad or any other Word Processing Software. 2- Write your text 3- Save the file as a text file To save a text file follow those steps : A- Open File menu B- Select Save As (Save as box will open) * Write the File Name * select the Location to save in C- Press Save - 25

27 Save As Use it when you create the file for the first time Save Use it when you create the file for the first time When you want to save the file in a new place or with a new name or with different extension When you made any modification and want to save it on the same file with the same name There isn't one best way to search; you can use different methods for different situations. *P.S: Search tape can be shown by pressing (CTRL+F) on the keyboard. You can use the search box on the Start menu to find files, folders, programs, and messages stored on your computer. - 26

28 Click the Start button Type a word or part of a word in the search box. The search box filters the current view based on text that you type; the search includes all folders included in the library as well as subfolders within that folders. To search by using the search box: Type a word or part of a word in the search box. As you type, the contents of the folder or library are filtered to When you see the file that you want, stop typing. - 27

29 PS: If you know which file type it is, you can just enter the file extension ("JPG" for example) in the search box. Sometimes you can use an asterisk (*) as a wildcard for any number of characters. You can also use the operators AND, OR to combine search keywords. *Folder Definition: It is a place inside a storage device which contains a file or more and also other folders called sub-folder. Different shapes of Folders from different OS - 28

30 1- Find the location where you want to create your folder. 2- To create the folder, right-click on a blank spot and select New Folder 3- Name the folder: Type in a preferred name for the folder. 4- Fill the folder: After this you can drag any type of file that you want to organize into your brand new folder. You can then double click the folder at any time to access those files. - 29

31 To know the Folder properties (Size contents ) Right click the folder properties Cut the Folder: move the folder from its location to a new one Copy the Folder: duplicate the folder and have a new copy - 30

32 Steps to copy Folder 1- Right Click the folder 2- Select Copy 3- Move to the new place 4- right-click on a blank spot and select paste Steps to rename the Folder 1- Right Click the folder 2- Select Rename 3- Enter the new name 4- Enter Rename Steps to Delete the Folder 1- Right Click the folder 2- Select Delete or Move to Trash - 31

33 Restore the Deleted Objects (Files-Folders ) Any deleted item moved automatically to the Trash where we can Restore it. or permanently deleted 1- Open Trash to show the deleted items 2- Select the item which we need to restore or delete 3- Right Click the selected item 4- Choose Delete from Trash to delete the item permanently 5- Choose Restore From Trash to restore the item to its original place. - 32

34 Q1: write (T) in front of the true sentence and (F) in front of the false sentence 1- We can recognize the file type from its Icon shape and extension. ( ) 2- The temporary delete inside the recycle bin can be retrieved again. ( ) 3- The Cut /Paste Operation for the folder mean that we will duplicate the folder to have another copy from it in other storage device or in the same storage device. ( ) 4- We can save the files using the shortcut keys (Shift + S). ( ) Q2: What is the difference between: 1- File and Folder (definition) Save and Save As Q3: Write the Scientific Term 1- Files related to the Operating System and the Hardware attached to the computer and it should be away from any ruin. ( ) 2- Set of Data Stored inside the storage Units with different Extensions. ( ) - 33

35 Lesson 4 Computer Networks Network definition: It consists of two or more computers that are connected together. They could be in the same room or any place in the world. The benefits of using network: 1) Sharing resources such as printer. 2) Sharing files or data. 3) Fast and effective communication. 4) Reducing costs, saving time. - 34

36 1- Local Area Network ( LAN ) It is a computer network within a small geographical area such as a home, school, computer laboratory, office building or group of buildings. 2- Wide Area Network (WAN) It is a network that exists over a large-scale geographical area. It connects different smaller networks, including local area networks (LAN). This ensures that computers and users in one location can communicate with computers and users in other locations. File Sharing Sharing files is the process of spreading digitally stored information, such as documents, multimedia (audio/video), graphics, computer programs, images and some hardware during the network. - 35

37 1- Sharing Files in Windows Operating System 1- Put the Files in a Folder and share this Folder 2- Right click on the folder "Books" 3- Choose share with then select specific people 4- Choose the desired user to allow him to share the folder from the checkbox, Everyone share with all Users Choose the desired user to allow him to share the folder from the checkbox, everyone share with all Users 5- Press Add To add this user to the list of users who are allowed to participate Select the user you want to share the files with - 36

38 Choosing everyone share the file with all users 6- Specify the Privileges of each user where Read: allow the user to only read the file Read/ Write: allow the user to read and modify Specify User Privileges 7-Press Share to continue the sharing Process - 37

39 What is the name of your computer? 1- Go to my Computer in the desktop and press with the right click 2-Select Properities 3- Now you can Get your Computer Name Reaching other Users Folders in the same Network 1-Press The Network Icon (which contains all the Computers of the users connected to the Network) 2-Search for the needed device with its name then double click to open it (now you can see all the folders shared with this device) - 38

40 Q1: write (T) in front of the true sentence and (F) in front of the false sentence. 1-Connecting devices together inside the Computer Network give the ability to share Data only. ( ) 2- The Internet is a special type of the Wide Area Network. ( ) 3-The Wide Area Network uses different ways than the Local Area Network to provide the communication. ( ) 4- When you need to share a folder you should be connected to the network to let other users reach your device. ( ) 5-To share Files in Windows Operating System no need to put them in a folder. ( ) Q2: Complete with the correct word between brackets (Files Area Data Users Name Hardware) 1- One of the most important advantages of the Network is centralizing 2- Local Network is limited in 3- Sharing.is the process of publishing info saved digitally. 4-We can search for the device which we need to reach inside the network by

41 Q3: Answer the Following questions 1- Mention two advantages of using the Computer Networks? The Network differ according to the geographical area which it reserve, specify two types of Network according to that Explain: Using the READ /WRITE privilege for Users while sharing Files will cause a problem Q4: Write the scientific term: 1- It is a computer network within a small geographical area such as a home, school. ( ) 2- It consists of two or more computers that are connected together. (..) 3-It is the process of spreading digitally stored information, such as documents, multimedia. (.) - 40

42 Unit 2 Creating and Modifying Images Lesson 1 Introduction to the Basics of Creating and Modifying Images - 41

43 Creating and modifying images Programs *A program for creating and modifying images used to assist in designing, creating and modifying different images. *It enables the user to modify photos or drawings. *There are many of those programs which are a closed and open source programs; such as: GIMP Adobe Photoshop Open source Closed source The GIMP program is an open and free source that allows creating and processing images. Gimp Window is available in two shapes 1- Multi Window Mode 2- Single Window Mode To Transfer from Multi Window Mode to Single Window Mode Press the Windows menu Single-Window Mode - 42

44 Note: After closing the program and reopening it, It remains in the (Single-Window Mode) Gimp Window consists of : 1- The Main toolbox The "tool box" consists of many tools such as the selection tools, back and front color tools. 2- Tool Options dock It appears below the tool box and the options of the current tool (the selected) is shown in it. 3- Image Window When opening more than one image, each image appears in a window which you can navigate between them. 4- The Layers, Channels, Paths, Undo dock It contains several classifications, such as the Layers tab. 5- Brushes/Patterns/Gradients dock It contains the classification of Brushes, Forms tab, Gradients color schemes tab. - 43

45 - Moving the mouse on top of something and letting it rest for a moment will usually bring up a "tooltip" message that may help you understand what the thing is or what you can do with it. -You can press the F1 key to get help about the thing that is underneath the mouse. - Closing any of the Gimp window contents can be returned back Windows Recently Closed Docks The selection tools are used to select a part or more of the image to deal with like delete, cut, copy, paste, changes the color of the selected part in order not to change the whole image. * The selection tools are shown in The Main Toolbox you can also access it through the Tools menu From the Tools Menu select Selection Tools 1-Rectangle Selection Tool Choose the selection tool "Rectangle" by clicking on the tools box. To select, click by pushing the image in the selected place so a rectangle is drawn as shown in the image. - 44

46 2-Ellipse Selection Tool The Ellipse select tool is used to select the oval shape of the image. 3-Free Selection Tool (Lasso) The Lasso Free Selection tool is used to select an irregular part of the image in a freeway

47 Q1: write (T) in front of the true sentence and (F) in front of the false sentence. 1-When we open Gimp for the first time the program will be on the Multi- Window mode. ( ) 2-To know more about any tool Press F5 on the Keyboard. ( ) 3-Piencel tool is one of the selection tools. ( ) 4- The "Ellipse" selection tool is used to select an oval shape of the image. ( ) Q2: Complete the following 1-To cancel a selection we use 2- Free Selection (Lasso) is used to select by - 46

48 Lesson 2 Designing and Creating New Images Creating a new Image File: To create a new image file (New Image) from the File menu choose New, a dialogue box appears which requests the dimensions of the new image (length and width), its resolution. * To create a new image file File menu New Template: Templates are ready made designs previously prepared of the dimensions and the resolution of the picture. 2- Image Size: To identify the dimensions of the new image (length and width) click on the arrows. 3- Advanced Options: by clicking on + sign the rest of the dialogue box appears as follows: - 47

49 4- X resolution and Y resolution: This is used to determine the image resolution when printing (and it does not affect the picture dimension) 5- Color Space: This is used to determine the Image color system *RGB color: The image is created in the Red, Green, Blue color system. *Grayscale: The image is created in black and white, with various shades of gray. 6-Fill menu: you specify the background color that is used for your new image Save Image through the command Save from the File menu The GIMP program offers the extension XCF to the image file, to save all the information about the image. - 48

50 Q1: Complete the following -To create a new image File 1-2- Specify Width and height of the new image Color Space 6-. Q2: Put ( ) or ( ): 1-We can create a new image file from Edit menu then choose New. ( ) 2- The GIMP program offers the extension Jpg to the image file. ( ) 3-RGB color means that the image is created in black and white. ( ) - 49

51 Lesson 3 Paint tools Paint tools are used for different drawing purposes such as free hand drawing, create gradient color scheme, and merge the current color with the surrounding colors, copy part of the picture in another place in the same image. *The Paint Tools that can be accessed from the Tool Menu 1-Pencil Tool: The pen in the "Pencil" tool is used for free hand drawing Different shapes & Sizes of brushes 2-Blend Tool: is used to make color gradation using the front or back colors. Modifications are made to the options of the tool to get the gradient color scheme required. - 50

52 3-Smudge Tool : is used to mix the current color with the surrounding colors in the area of moving the tool. 4-Clone Tool: is used to copy part of the picture in another place (in the same image layer). It is used to modify and reform the images. If you want to clone from an image, instead of a pattern, you must tell GIMP which image you want to copy from. You do this by holding down the Ctrl key and clicking in the desired source image. Until you have set the source in this way, you will not be able to paint with the Clone tool: the tool cursor tells you this by showing a forbidden symbol. Image after cloning Original image 5-Eraser Tool: is used to remove areas of color from the current layer or from a selection of this layer. - 51

53 Q1: write (T) in front of the true sentence and (F) in front of the false sentence. 1- Pencil tool is used in free selection. ( ) 2-Clone Tool is used to merge the current color with the around colors in the area where the tool is moved. ( ) 3-Blend Tool is one of the selection tools. ( ) 4-Smudge Tool is used to copy a part of the image to another place (in the same layer) and it is used in repairing images. ( ) 5-Eraser Tool is used to remove the colored area in the image. ( ) - 52

54 Lesson 4 Transforming and Resizing Tools Transform Tools: Transform tools are the tools used to change the image format by transforming, resizing, changing the image dimensions. To access the tools of the Transform tools go to the tools menu 1-Move Tool: The Move tool is used for moving the image or the layers of an image to frame or text. 2-Crop Tool: Crop tool is used to cut a part of the image. Focused working area. Original image Select the part to crop After cropping - 53

55 3- Rotate tool Rotate tool used to rotate an image 4-Flip Tool: Flip Tool is used to flip horizontally or vertically an image. Original image Flipped image 5-Scale Tool: Scale Tool is used to change the dimensions of an image [length and width.] - 54

56 Q1: write (T) in front of the true sentence and (F) in front of the false sentence. 1- Transform tool is used to make changes in the image shape by moving and resizing. ( ) 2- Move Tool is used to move image or image layers or text or selection. ( ) 3- Flip tool is used to change the area of the image (width and height). ( ) 4- Rotate tool is used to crop part of the image. ( ) 5- Crop tool is used to rotate the image. ( ) 6- Scale Tool is used to inverse the image horizontally or vertically. ( ) - 55

57 Practical Questions 1-use a free selection tool to select a part of the image penguin then delete it? 1) Open File menu then choose Open. 2) Choose the picture you want penguin then press on Open. 3) Select a part of the image using Lasso free selection tool. 4) From the Edit menu choose Cut. 2- Draw the following figure using the "Pencil" tool? 1) Choose the "Pencil tool". 2) Modify the options of the tool to change the size and shape of the brush. 3) Choose Foreground color "red". 3-Use the "Clone" tool to copy part of the picture as follows: 1) Select the starting point of the copying by pressing the Ctrl key. 2) Move to the place of putting new copy. 3) Press by pulling the copied version then continue pressing till you finalize the copied version. - 56

58 Revision Sheet Q1: Put ( ) or ( ): 1- mobile phone is example of computer. ( ) 2-Shareware is a trial version of the original software with limited possibilities.( ) 3- Closed Source Programs Often available free of charge. ( ) 4- Anti- Virus is a type of Operating Systems. ( ) 5- bit is the smallest component of computer data. ( ) 6- The temporary delete inside the recycle bin can be retrieved again. ( ) 7- Pencil tool is one of the selection tools. ( ) 8- To share Files in Windows Operating System no need to put them in a folder. ( ) 9- Mac OS X is an Open Source Operating System. ( ) 10- Eraser Tool is used to remove the colored area in the image. ( ) 11- Android is an Open Source Operating System. ( ) 12- Flip tool is used to change the area of the image (width and height). ( ) 13- The "Ellipse" selection tool is used to select an oval shape of the image. ( ) 14- We can save the files using the shortcut keys (Shift + S). ( ) 15- The Internet is a special type of the Wide Area Network. ( ) Q2: Write the scientific term for each of the following statements:- 1-It is the result of the processing of data and it may be in the form of reports, schedules or Graphs. (..) 2- Any part of the computer that you can touch and see. (.. ) 3-It is a collection of Data which is stored within the storage unit with various types and extensions. ( ) - 57

59 4-It is an electronic set which has the ability to store data and process them to reach certain results {information} by doing logical and mathematical processes. (.) 5- It consists of two or more computers that are connected together. ( ) 6- It is a tool used to select the oval shape of the image. (.) 7- It is software that you can't see the source code which has been written with. (.) 8- It is a set of programs responsible for managing the hard ware of the computer (.) 9- It is a place inside a storage device which contains a file or more. (.) 10- It is a program that tells your computer what to do. (..) 11-It is an open and free source program that allows creating and processing images. ( ) 12-It is a tool used to mix the current color with the surrounding colors in the area of moving the tool. (..) 13-It is a computer network within a small geographical area such as a home, school. ( ) - 58

60 Q3: Complete the following sentences with the correct word:- 1-.tool is used to copy part of the picture in another place (in the same image layer). 2-. is a network that exists over a large-scale geographical area. 3- The GIMP program offers the extension. to the image file, to save all the information about the image. 4- You can press the.. key from keyboard to get help about the thing that is underneath the mouse. 5-From the input device keyboard,.,.. 6-From types of files,system,.. 7-The tool is used to select an irregular part of the image in a freeway. 8-We consider that.is input and output device together. 9-..OS is the most famous and popular operating system for personal computers. 10- files is created by drawing programs and has different extensions according to its resolution and size. 11-Designers,, from Human ware types. 12-We measure the processor speed with We press on...menu then select the selection tools. 14-(3 G.B)=(3*.M.B). 15- is the brain of the computer. - 59