S2 COMPUTER STUDIES EOT1&BOT2 2010 EXAMS CORRECTIONS JINJA COLLEGE DEPARTMENT OF COMPUTER STUDIES S2 COMPUTER STUDIES EOT1&BOT2 2010 EXAMS CORRECTIONS Wednesday, January 10, 2018Wednesday, January 10, 2018

EOT SECTION A ANSWERS A. Ability to computers to think like humans D. A collection of worksheets B. Rows and columns B. Plotter C. Laser printer B. Third generation B. RAM D. Stylus pen B. Distance between connected computers A. Hub D. Input, processing, output D. Software and RAM C. Column is not wide enough B. Converts digital to analog B. Headers B. Sort A. Text displayed on screen C. Spread sheet A. Calculating Wednesday, January 10, 2018

21What is a spreadsheet? Give examples of spreadsheets A computer spreadsheet is an application software package that contains a grid of rows and columns used to record, compare and analyze data especially numerical/financial calculations. Examples include Ms.Excel, Lotus 123, Quartopro, Supercal, Apple numbers, Openoffice.org calc etc Wednesday, January 10, 2018

23 Name three data types of entries that can be placed in a cell Text Numeric values Formulas Functions 24 What is a chart is spreadsheets? A chart is a feature is spreadsheets that enable us to present worksheet data in graphical form, for easier interpretation/ analysis Wednesday, January 10, 2018

BOT SECTION A ANSWERS B. Soft Copy C. Control Unit D. Mouse D. Unix B. Scanner B. Save as C. Formatting B. Sort B. Converts digital to analog signals C. Backspace A. Headers D. Click on the “B” icon in the format bar C. Control Unit D. Unix D. Displaying a Web Page B. 1 GHZ A. ALU C. CPU D. Keyboard C. Ms. Excel C. Motherboard B. Booting Wednesday, January 10, 2018

21.a) Mention any three safety /security measures taken in a computer laboratory. Always switch on and off the computer in correct order. Keep the Laboratory free of dust and with good ventilation Avoid making hardware connections when the computer is on To avoid accidental rusting and corrosion, avoid food and water near the computers Computers should be regularly serviced Avoid high temperatures and direct sunlight Use power stabilizers or UPSs to ensure steady power Handle delicate storage devices with care Don’t bring magnetic devices to the lab Wednesday, January 10, 2018

21. b) What is system software 21.b) What is system software? c) Name three examples of system software System software refers to programs that control the operations of a computer its self and all its devices Examples: Operating systems,(like DOS, Windows, Linux,Unix, etc) Utility programs, (like Antivirus programs and compressors) (System development soft wares) Programming languages like (Basic fortan cobol, + processor,etc) Wednesday, January 10, 2018

21. (d) Mention any two functions of utility programs. Antivirus utility – Prevents, detects and removes viruses Uninstaller utility removes programs Folder management utility - creating, viewing, deleting and rearranging files and folders Compression utility - reduces the size of files to free disk space Disk Defragmenter – Recognises the files and unused space on a hard disk so that data more quickly Back up utility – allows a user to copy, or backup files from one disk/storage device to another. Diagnostic utility – Compiles technical computer information & helps outline any identified problems Screen saver utility – causes the monitor’s screen to display a graphic automatically after a period when no input device is in use, for entertainment, security or business. Wednesday, January 10, 2018

22. (a) What is a computer spreadsheet? (b) Name any two functions A computer spreadsheet is an application software package that contains a grid of rows and columns used to record, organize and analyze data especially numerical or financial calculations. Functions: Calculations, (eg financial calculations) Creating and displaying graphics (e.g. charts) Arrangement and sorting of data Data storage Wednesday, January 10, 2018

22(c) and (d) (c) List three data types of entries in spreadsheets Numbers Text Formulas Functions Pictures, Charts (d) Give 3 graphs types created in spreadsheets Column graphs, bar graphs, line graphs, pie charts, XY scatter graphs, area graphs, radar graphs, doughnut charts, e.t.c Wednesday, January 10, 2018

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