Computer Studies question for JSS 3

1. The supervisory software of a computer is called _____  (a) operating system (b) high – level language  (c) transistor
2. An example of application software is called _____ (a) Ms excel ( b) Ms dos (c) Unix.
3. Which of the following has negative impact on ICT on the society?  (a) Employment (b) perpetration of fraud (c) data processing.
4. The following are use to classify computer EXCEPT (a) purpose (b) type (c) size.

5. The following are example of Operating system EXCEPT (a) windows (b) Linux (c) page maker.

6. Convert 30 to hexadecimal (a) 1E  (b) F2  (c) 2F.

7. Covert 111101₂ to decimal (a) 16 (b) 61 (c) 72.

8. Binary digit is also known as _____ (a) byte (b) bit (c) nibble.

9. The world – wide connectivity of computer is known as ____ (a) O ‘ NET (B) INTERNET (c) FAX

10. The intersection of row and column in spreadsheet application is called. ______ (a) work sheet (b) cell (c) column-row

11. Another name for the Monitor is _____ (a) VDU (b) DUC (c) UCD

12. Information displayed on the monitor screen is ____ (a) hardware (a) spyware (c) softcopy

13. The longest key on the keyboard is ______ (a) return  key (b) control key (c) space bar

14. Flash disc is an example of ____ (a) storage device (b) ALV (c) control device.

15. The software for cleaning virus – attack in the computer system is called _____ (a)vaccum cleaner (b) anti – virus (c) virus – erazor.

16. A presentation is created using _______ (a) MS – Excel (b) Ms- power point (c) corel draw.

17. What is the full meaning of BASIC ? (a) Beginners All - purpose Symbolic Instructional Code. (b) Be all symbolic instruction code (c) Basic symbolic code.

18. what is the output of the following program segment ?

10 A = 10

20 C = A^ 2

30 PRINT C

(a) 2 (b) 100 (c) 20

19. which of the following is an example of search engine (a) Google (b) Data (c) Glass
20. yahoo mail is used mainly for ________ (a) sending and receiving (b) playing games (c) degrame.
21. which of the following is an example of ICT  gadget ? (a) Drum (b) Telephone (GSM) (c) Ruler .
22. program currently in use for processing data are in ______ (a) Hard – Disk (b) ROM (c) RAM
23. storage currently in use when processing data is _____ (a) RAM (b) flash disk (c) ROM .
24. A person that uses computer to accomplish  a particular objective is referred to a _____ (a) user (b) Programmer (c) Scientist .
25. Deleted files in the computer can be found in the (a) printer (b) icon (c) Recycle bin.
26. How many bits are there in 4 – bytes? (a) 8 (b) 24 (c) 32.
27. The part of a computer that holds data and instructions is (a) ALU (b) memory unit (c) control unit .
28. The lowest unit of measuring information in a computer is ______ (a) byte (b) bit (c) mega byte .
29. Charles Babbage invented difference engine in ______ (a) 1833 (b) 1923 (c) 1642
30. Information stored in RAM is ______ (a) volatile in nature (b) non – volatile (c) virus.

THEORY

1. (a) i. Define information.

           ii. In what way is information different from data?

      (b) List five qualities of good information

2.   (a) What is a computer ?

      (b) Distinguish between computer hardware and software.

3.   Convert the following:

(a)    11101110₂ into octal system.

(b)   5621₈ into decimal.

(c)    100110010₂ into hexadecimal

(d)   256₈ into hexadecimal

4. (a) What is the full meaning of the acronyms BASIC?

(b) Mention 5 BASIC statements that you know.

(c) Write a BASIC program that will add set of three numbers.