Computer Studies

Chapter 5 - Data Representation

1. Group of 4 bits is called

a) Nibble
b) Byte
c) Word
2. Group of 16 bits is called:

a) Word
b) Nibble
c) Byte
3. One kilo byte (KB) is equal to:

a) 1024 byte
b) 1024 words
c) 1024 bits
4. One mega byte (MB) is equal to:

a) 1024 KB
b) 1024 bits
c) 1024 bytes
5. One Giga byte is equal to:

a) 1024MB
b) 1024 byte
c) 1024KB
6. One tera byte is equal to:

a) 1024 GB
b) 1024 MB
c) 1024 KB
7. Organization of the computer is dependent upon:

a) Hardware
b) Software
c) Number system
8. The number system that has proved the most natural and efficient system for machine use is:

a) Binary
b) Decimal
c) Octal
9. Collection of facts and figures is called:

a) Data
b) Symbols
c) Information
10. Information can be obtained by processing:

a) Data
b) Program
c) Facts
11. Which of the following is called organized form of data:

a) Information
b) DATUM
c) System
12. Basically data can be classified into how many types:

a) Two
b) Four
c) Eight
13. Numeric data can be:

a) Both a and b
b) Integer
c) Real
14. The range of decimal number system is:

a) 1 to 10
b) 1 to 9
c) 0 to 10
15. The binary digits are abbreviated to:

a) BCD
b) BD
c) BITS
16. The binary number of 45 is:

a) 111010
b) 101010
c) 101101
17. To convert the 65 octal number into decimal and result is:

a) 53
b) 54
c) 52
18. (425)10=(?)16:

a) 1A9
b) 3B9
c) 5EB
19. 1's complement of 00001 is:

a) 11110
b) 0
c) 11111
20. To add the binary number 01 + 1 =     :

a) 1110
b) 11010
c) 10011
21. EBCDIC is a bit code:

a) 8
b) 4
c) 7
22. Which of the following code each decimal digit is represented by its four-bit binary equivalent:

a) BCD
b) ACSII
c) EBCDIC
23. Which of the following code is used by IBM compatible computer systems:

a) EBCDIC
b) BCD
c) ACSII
24. The decimal number system consists of how many digits:

a) 10
b) 11
c) 8
25. The data, which consists of whole numbers is know as:

a) Integer
b) Real
c) String
26. The number, which has a decimal point, is:

a) Fixed point
b) Character
c) String
27. The number, which is in the exponential form, is:

a) Floating point
b) Real
c) Integer
28. The data which can be a picture, drawing map is:

a) Graphical
b) Alphabetic
c) String
29. The processed form of data is know as:

a) Information
b) Graphics
c) binary
30. How many types of number system are used in computer:

a) 4
b) 3
c) 5
31. Which number system is ideal for the internal working of electronic computers:

a) Binary
b) Decimal
c) Octal
32. The base of hexadecimal number system:

a) 16
b) 8
c) 10
33. The base of hexadecimal number system:

a) 16
b) 8
c) 10
34. The equivalent of decimal number 10 in binary is:

a) 1010
b) 1100
c) 1011
35. The complement of 100110 is:

a) 11001
b) 11100
c) 110011
36. IBM stands for:

a) International Business Machine
b) International Bureau Mechanism
c) None
37. The base of this system is eight:

a) Octal
b) Hexadecimal
c) Binary no system
38. EBCDIC code is used in

a) IBM Computer
b) Intel Computer
c) Apple Computer
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