Angel International School - Manipay 3 rd Term Examination July, 2015
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1 Angel International School - Manipay 3 rd Term Examination July, 2015 Information and Communication Technology - OS Grade 10 Part I Answer All Questions: 1) This is a picture of a.. a) Processor Unit b) Memory module c) System Unit d) Graphic card Durations: 03 hours Index no: ) A named as. a) CPU b) CU c) UPS d) NIC 3) Select the component especially dangerous to open and repair. a) Printer c) CRT Monitor b) Mouse d) System unit 4) The storage medium uses sequential data access method is a) Hard disk c) Floppy disk b) Magnetic Tape d) USB flash drive 5) Decimal value 25 in binary... a) b) c) d) ) The base of hexadecimal number system is: a) 2 c) 8 b) 16 d) 10 7) When both inputs are same, then output is 0 in a) OR c) XOR b) AND d) NAND 8) is equal to: a) b) ) is equal to: a) b) c) d) c) d)
2 10) The operating system manages: A. Disk and I/O devices B. Memory C. Processes a) A and B only b) A and C only c) A, B and C all d) B and C only 11) Main purpose of computer video card is: a) Play video b) Provide video display capability. c) Provide additional function to processor d) Process memory allocation 12) The following statements are about data and information... A. Raw facts of an object can be considered as data. B. Non processed data is more useful for decision making than Processed data. C. Non processed data is known as information. a) A correct b) B correct c) A and B correct d) B and C correct 13) Select the tool which used to check hard disk. a) Defragmentation c) Disk cleanup b) Scandisk d) Disk format 14) Four major units of the computer system are a) Key board, Monitor, Printer, CPU b) Input, Process, Output, Storage c) RAM, ROM, Cache, Hard Disk d) Primary memory, Secondary memory, Memory registers, Mother Board 15) Introduced the first micro processor..(a) in year..(b) a) (a) is IBM4004, (b) is 1971 b) (a) is Intel4004,(b) is 1981 c) (a) is Intel4004,(b) is 1971 d) (a) is IBM4004, (b) is ) According to this picture, B may set the problem as a) Back pain b) Feet Flat c) Position of the Key board d) Glare screen
3 17) ADSL denotes a) Asynchronous Data Sending Line b) Asymmetric Digital Sub Line c) Advance Data Subscriber Line d) Asynchronous Data Sending Level 18) Health problems caused due to heavy use of computers include A. Eye strain. B. Ergonomics. C. Back pain. D. Repetitive Stress Injury a) A and B only b) A, C and D only c) A and C only d) B and C only 19) The insertion point in a table can be moved by using: A. Arrow s keys B. Tab key C. Shift + tab key a) A and B only b) A and C only c) A, B and C only d) B and C only 20) Which Function key used for slide show from beginning a) F9 c) F2 b) F1 d) F5 21) Collection of related information refers term is a) Record c) Outline b) List d) Database 22) A web page is located using a a) Uniformly reachable links b) Universal record linking c) Uniform resource locater d) Universal record locater 23) FORTRAN programming language is more suitable for.. a) Data base application c) Marketing applications b) Scientific applications d) Business application 24) The program which is as permanent as hardware & stored in ROM is known as: a) Firmware c) Hardware b) Live ware d) Software 25) What is the first stage in software development? a) Writing program codes c) Specification and design b) Testing d) Identify the problem
4 26) The digital signals can be represented by A. High and low B. Binary codes C. 0 and 1 a) A and B only b) A and C only c) B and C only d) A, B and C only 27) The device is used only in LAN (local area network) a) Router c) Gateway b) NIC d) Modem 28) Changing the appearance of a document in word-processing the task of is: a) Formatting c) Editing b) Inserting d) Proofing 29) Which gives you the correct data hierarchy a) Bit, Byte, Kb, Mb, GB c) Mb, GB, Byte, Kb, Bit b) Bit, Byte, Kb, GB, Mb d) Bit, Kb, Byte, Mb, GB 30) Select the Boolean operation represented by the following truth table a) NOR b) AND c) NOT d) NAND 31) Which of the following is a valid example for an internet address? a) aisexams@gmail.com b) c) aisexams d) ais_exams_publications 32) ASCII stands for: a) American Standard Coding Intelligent information b) All stars code for Information interchange c) American Standard Code for Information Interchange d) All Stars Coding Intelligent Information 33) Which cables are used to transfer maximum rate of data. a) Coaxial cables c) Fiber optics b) Twisted pair d) Power cables 34) Identify the shaded area in following Venn diagram a) AND c) NAND b) XOR d) NOR
5 35) Technologies used in First, Second Third & Fourth generations: a) Vacuum tubes, Transistors, IC, Micro chips b) Vacuum tubes, Transistors, Microchips, IC c) Vacuum tubes, Microchips, Transistors, IC d) Vacuum tubes, IC, Microchips, Transistors 36) Which of the following is a network Operating System? a) Windows server 2012 b) Windows XP c) Windows Me d) None of the above 37) The formula =COUNTA(A1:A6) written in cell A7 of the following worksheet would Return a) 7 b) 5 c) 4 d) 6 38) A number system known as X has 0-15 different unique values. The 11th Unique value is? a) 11 c) B b) A d) K 39) What is the correct answer for a feature of a portable computer? a) Lightweight c) LCD screen b) Small d) All of the above 40) Checking a computer program for errors is called a) Bugging c) Syntaxing b) Correcting d) Debugging
6 1) Part II Answer all Question a) Classify computers into two types according to their purpose. b) G.C.E (Ordinary level) candidates can obtain their examination results from the website of the development of examinations. When the index number is entered to the data entry form of the website, the system validates it. If it is valid, then the results will be retrieved from the database and displayed on the screen. Write the input, process and output for this scenario. c) Copy Table A and Table given below into your answer script and draw arrows between matching items of table A and Table B. d) Write the Boolean expression to represent the following logic circuit. Simplify your answer: e) Character encoding schemes are used to represent symbols within computers. The number of symbol represented in a computer depends on the number of bits used for the encoding scheme. How many different symbols could be represented using (8) bits? Show your computations. f) Convert hexadecimal number C9 into binary. Show your computations.
7 g) You are given the following logic circuit where the input B is a binary value. The output of the logic circuit is either 0 or 1 depending on the input. Modify the logic circuit by inserting an appropriate logic gate in suitable places to produce 1 irrespective of the input value of B h) Consider the following statements: A 2D animations file has a A. extension but when it is exported as a movie file it has a B extension. In graphic editing software the working area is commonly referred to as the C. In graphic editing software the D. can be used to select similar coloured areas. Select the appropriate words for A, B, C, and D from the list given below. (Timeline, Fla, Swf, Import, Canvas, Magic wand) i) Consider the set of integer numbers S={2,3,4,5,6,7,8,9,10}. The following pseudo code calculates the total of the even number of the set S. Copy the pseudo code to your answer script and complete the blanks. Begin Set Total to zero For (counter =... to. step ) Total =. Next counter End j) State four requirement gathering techniques used in system development Life cycle (SDLC).
8 2) Consider the following worksheet on drug prices prepared according to a news paper advertisement. a) Suggest the most appropriate chart type available in spreadsheet software, to show two prices of all five drugs along with the name of drug. b) Write the required formula in cell D4 to show the price difference of paracetamol. (Price difference = price in branded name - price in Generic name) c) If the formula entered in cell D4 is copied to cell D5, how would the formula appear in cell D5? d) Assuming the cells D4, D5, D6, D7 and D8 contain price differences for the five drugs in cell D9.You may use the function SUM, in your answer. 3) Computer Network a) Define the term Computer Network b) Write Two Advantages of having a computer network c) Write Two Disadvantages of having a computer network d) Write down Four network topologies and draw the structure of each
9 4) An operating system (OS) is a set of computer programs that manage the hardware and software resources of a computer a) Write the several types of operating systems: with examples: b) Briefly explain three functions of the operating system. c) Write the two main types of software and give the example for each. d) Explain following terms Compiler and Interpreter e) What is the different between High-level language and Low-level Language? 5) Information and communication technology a) What is data? b) What are the uses for ICT in Education? c) What do you mean by Web based training? d) What do you mean by Quality of information in ICT? e) What are the characteristics of quality information s? f) Write down some diagnosis machines for the ICT in Health Sector: g) What is Emergency Telemedicine? h) What do you mean by Tele surgery (Remote Surgery)? i) What is the use of Video Conferencing? j) What are the advantages in Online Shopping? 6) Complete this session with correct answer 1. 8 bit = = 1 KB (Kilo Byte) KB = = 1 GB (Giga Byte) GB = 1.
10 7) Fill In the blanks, What are the industries in ICT A. B. C. H. D. G. E. F.
11 Marking Scheme Part I 1. A 2. B 3. C 4. B 5. A 6. B 7. C 8. D 9. D 10. C 11. B 12. A 13. B 14. B 15. A 16. D 17. A 18. C 19. D 20. D 21. D 22. C 23. B 24. A 25. D 26. B 27. B 28. A 29. A 30. B 31. B 32. C 33. C 34. C 35. A 36. A 37. B 38. C 39. D 40. C Part II 1) a) Special Purpose Computer, General Purpose Computer b) Input-Index No. Process: validate and retrieve information from database Output Results Note : Flowchart based symbols can also be used. c) address : aisexams@gmail.com URL : IP address : Search Engine : Google Web Browser : Google chrome d) x.y + xy = z Z=1 e) Number of symbols = 2 8 =256 f) g)
12 h) A. Fla B, swf C canvas D magic wand i) Begin Set Total to zero For Counter =2 to 10 Step 2 Total = Total +Counter Next Counter End j) Interviewing, Observation, Document Inspection, Questionnaire, Discussions/Brain Storming 2) a) Bar Chart/Column Chart b) =c4-b4 c) =c5-b5 d) =sum(d4:d8) 3) a) A computer network is a group of computer systems and other computing hardware devices that are linked together through communication channels to facilitate communication b) Allows File Sharing Provides Convenient Resource Sharing Inexpensive System Flexible to be Used Increase in Storage Capacity of the Software c) Security Difficulties Presence of Computer Viruses and Other Malwares Lack of Independence
13 4) d) Star Topology Ring Topology Bus Topology Tree Topology Mesh Topology Hybrid Topology a) Single user operating system (MS Dos Operating System) Multi user operating system (Linux, Windows server) Multi-tasking operating system (Windows 8, Ubuntu, Mac Operating System) Real time operating system (ATM machines, Calculators) b). Booting the computer. Performs basic computer tasks eg managing the various peripheral devices eg mouse, keyboard. Provides a user interface, e.g. command line, graphical user interface (GUI).Handles system resources such as computer's memory and sharing of the central processing unit (CPU) time by various applications or peripheral devices.provides file management which refers to the way that the operating system manipulates, stores, retrieves and saves data. c) Application / Packages (Ms Word, Ms excel, Autocad) Programming (C++, Java, Python) d) A compiler is a computer program (or set of programs) that transforms source code written in a programming language (the source language) into another computer language (the target language, often having a binary form known as object code) A interpreter The most common is to compile the program; the other method is to pass the program through an interpreter. An interpreter translates high-level instructions into an intermediate form, which it then executes. In contrast, a compiler translates high-level instructions directly into machine language. e) Low level language is a language that supports the machine side of the programming or does not provide human side of the programming (typical features: lack of identifiers, lack of crossplatform independence, full access to the processor architecture, etc.) low High level language is like instructing a person with higher understanding of the task, while level language is like instructing a person with no understanding of the task.
14 5) 1) What is data? o The numbers, words, images and symbols which do not bear a meaning, when standing alone are called data. 2) What are the uses for ICT in Education? o For presentations o Videos on experiments o Creation of images and video o Desktop publishing of magazines, letters and documents o Educational games (Edutainment) o Learning using the CD-ROM media o Gathering educational information on the internet 3) What do you mean by Web based training? o We can contact with a teacher/trainer via internet. This is called WBT 4) What do you mean by Quality of information in ICT? o We understand that we can get information by processing data and this information can be used to arrive at decisions. However, not all information is suitable for making decisions. Information obtained should be of good quality. 5) What are the characteristics of quality information s? o Relevancy, Completeness, Accuracy, Timeliness, Cost Effectiveness. 6) Write down some diagnosis machines for the ICT in Health Sector: o CAT - Computerized Axial Tomography Machine o MRI (Magnetic Resonance Imaging Machine) o ECG - Electrocardiogram Machine o Cardiac Screening Machine o EEG (Electro-encephalography) o Blood Sugar Testing Machine o Blood Pressure Measuring Machine 7) What is Emergency Telemedicine? o Emergency telemedicine is the process of providing emergency care by a trained person in consultation with a specialist in a hospital via telecommunication network and treating him when a patient (who lives in a remote village or flying in a plane or cruising in a ship) cannot reach a hospital. 8) What do you mean by Tele surgery (Remote Surgery)? o Remote surgery is the ability of a doctor to perform surgery on a patient in consultation with a specialist (who is not physically present at the same location but in a far away town or abroad) by the use of Telecommunication Technologies. 9) What is the use of Video Conferencing? o This technology has enabled different business communities who are geographically separated to convene face to face meetings while in at their own premises. The advantages of this technology
15 are, no need to convene at a special venue, saves time travelling, reduces travelling expenses 10) What are the advantages in Online Shopping? o One can select any global commercial organization which is on the internet. o Open 24 hours a day. o Able to see things and order at one s convenient place. o The ability to pay using the electronic payment methods such as credit cards. o Home delivery of goods. Because of these we can save on transport cost and avoid unnecessary travel related exhaustion. 6) 1. 8 bit = 1 Byte Byte. = 1 KB (Kilo Byte) KB = 1 Mega byte MB. = 1 GB (Giga Byte) GB = 1 TB (Tera byte). 7) P. Education O. Health N. Agriculture M. Transport L. Entertainment K. Businesses J. Industries I. E-Government
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