Scheme Ict Mid Year Form 4 2008

Scheme - ICT Mid Year Form 4 2008 Section A 1. B 2. C 3. C 4. B 5. D 6. C 7. D 8. D 9. B 10. D 11. True 12. False 13. True 14. False 15. False 16. True 17. i. C ii. A ii. D 18. i. doc ii. xls iii. ppt 19. utility, virus 20. digital, analogue 21. control unit, arithmetic logic unit 22. Computer security 23. Operating system 24. Computer network 25. i. Expansion slots ii. CPU slot

iv jpeg v. .pub

iii. RAM slots

Section B 1. a) is a source of threats to security in computer. It is define as unauthorized access to the computer system by a hacker. b) Computer are threatened by natural such as flood, fire, earthquakes etc. 2. a) i. input – any data or instructions that you enter into a computer ii. output – is the result of data processing activity when its presented external to the system. b) RAM ROM Data and program Stores during and after Stored by manufactured processing Content Stores information Stores instructions temporarily permanently Processing time Very fast Fast Volatility Volatile Non-volatile 3. a)

is a set of program that coordinates all the activities among the computer hardware devices.

b) i. command line ii. graphical user interface iii. menu-driven interface 4. a) hacking b) – informations can be exposed by others - any possible answers 5. a) Word processing Is Office applications that enables users to create, edit, format and print textual documents

Spreadsheet Is a program that processes information in the form of grid of columns and rows. - mathematical formulas

File Management software used to manage files on a disk. It provides functions to delete, copy. move, rename and view files as well as create and manage folders (directories).

File Compression a utility that removes redundant elements, gaps and unnecessary data from a computer’s storage space so that less space is required to store or transmit data

b)

Section C 1. a) INPUT

PROCESS

OUTPUT

STORAGE b) Types Usage of application software Spreadsheet A program that process information in the form of tables. Tables can hold values or mathematical formula An application software that allows a user to create visual Presentation aid for presentation to communicate ideas, massages and other information to a group Graphic A program that can edit digital representation or non text editing informations such as drawing or photograph. c) COMPUTERIZED

•Used computer to do something or their work.

•Such as input data, surf internet. •Easy to search information •E-learning, E-Commerce

NON-COMPUTERIZED

•Manually •Use file to put a document •Very difficult to find old document or data.

•File

2. a) RAM – RAM slots Network card – PCI slots / Expansions slots / ISA slots b) Primary storage Secondary storage Random-Access Memory

TYPE

FUNCTION

Read-Only Memory ( RAM , ROM) RAM A computer uses RAM to hold temporary instructions and data needed to complete tasks ROM Many complex functions, such as start up operating instructions, translators for high-level languages and operating systems are placed in ROM memory

Magnetic Medium Optical Medium Flash Memory

-store programs and data for future use -It is non-volatile, It will store the information until it is erased

c) Pervasive computing means the technology that is gracefully integrated in our everyday life. The user is no longer aware of this embedded technology. Pervasive computing uses web technology, portable devices, wireless communications and nomadic or ubiquitous computing systems.

- any related answers 3. a) Proprietary Software Proprietary software is also called closed source software. The closed source software or proprietary software offers a stable system with support if the software fails or malfunctions.

Open source Software Open source software is software provided for use, modification and redistribution Any programmer can download from the Internet for free and modify with suggested improvements. The only qualification is that changes can't be copyrighted,

Presentation Software using Microsoft Powerpoint

Presentation Software using OpenOffice Impress

Free software

copyrighted software

Not allow to save swf format

has a feature which allow users to save the file in “.swf format “ as a presentation show

tools for recording available several dozen templates. Any possible answers

Impress has no tools for recording sounds or narration and for playing CD tracks. Impress offers only a few.

b)