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1. Which of the following number system is known as base-10 system.
a.Binary Number System b.Hexadecimal Number System
c.Octal Number System d.Decimal Number System
2.Which of the following is not a positional number system?
a. Roman Number System b. Octal Number System
c. Binary Number System d. Hexadecimal Number System
3.The tangible part of a computer system is called
a.Input data b.Output data
c.Hardware d.Software
4.Every number system has a set of unique characters or literals. The count of these literals is called ____
a.matrix b.radix
c.radical d.exponent
5.The value of radix in binary number system is _____________
a. 2 b. 8
c. 10 d. 1
6.Which two numbers form the binary number system?
a. 0 and 2 b. 1 and 2
c. 0 and 1 d. 1 and 3
7.Binary number system is also referred as ___________________
a. base-2 system b. base-8 system
c. base-10 system d. base-16 system
8.A computer language that is written in binary codes only is _____
a. machine language b. C
c. C# d. pascal
9.Which of the following is not an examples of binary numbers?
a. 010101 b. 11100.01
c. 111001 d. None of the above
10.Decimal number system has ________ digits
a. 8 b. 7
c. 19 d. 10
11. Binary coded decimal (BCD) numbers express each digit is a
a. Bit b. Byte
c. Nibble d. All of these
12.Hexadecimal numbers are a mixture of
a.Octal and decimal numbers b. Binary and octal numbers
c.Letters and decimal digits d. Binary and decimal numbers
13.ASCII code is an
a. Alpha numeric code b. Cyclic code
c. Numeric code d. Alphabet code
14.Octal number system has digits from _____
a. 0 – 7 b. 1 – 7
c. 1- 8 d. 0- 9
15.Which of the following is not an example of Octal number?
a. 123 b. 478
c. 372 d. 136
16.The parity bit is added for which purpose?
a. Control key b. Error detection
c. Indexing d. Coding
17.ASCII Code is a 7 bit code for
a. Other symbols b. Numbers
c. Letters d. All of these
18.Hexadecimal number system consist of _________ unique symbols?
a. 8 b. 16
c. 10 d. 2
19.Which of the following is not an example of Hexadecimal number?
a. 1C2 b. 2A.1
c. 1ABCD d. 67GA
20. Which Hexadecimal symbol is used for decimal number 15?
a. A b. C
c. E d. F