11) The computer memory used for temporary storage of data and program is called
(a) RAM
(b) ROM
(c) EPROM
(d) PROM
12) In EDCDIC, a character is represented by
(a) Eight bits
(b) One bit
(c) Sixteen bits
(d) ten bits
13) The smallest unit in the computer which represents information is
(a) Digit
(b) Byte
(c) Character
(d) Bit
14) Secondary memory device is
(a) CPU
(b) Mouse
(c) Floppy disk
(d) ALU
15) How many different characters can be coded by EBCDIC ?
(a) 64
(b) 256
(c) 32
(d) 128
16) A code that is written into a serially accessed memory is
(a) EOD
(b) Gray code
(c ) Bar code
(d) None of the above
17) Memory address are calculated by an algorithm which is widely known as
(a) Sorting
(b) Searching
(c) Hashing
(d) None of these
18) Main memory of a computer is
(a) Random device
(b) Sequential device
(c) Both of the above
(d) Volatile
19) Which of the following is the 1’s complement of 100/
(a) 011
(b) 1001
(c) 1100
(d) 110
20) Which of the following is not an octal number ?
(a) 17
(b) 105
(c) 201
(d) 38