Computer Number System Practice Question and Answer
8 Q: The base of a binary number is -
1226 363e9fba70fa4111f87da4a68
63e9fba70fa4111f87da4a68- 14false
- 22true
- 316false
- 48false
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Answer : 2. "2"
Q: 3 A nibble is equal to bits.
927 06177ed695456305c55a7fd75
6177ed695456305c55a7fd75- 14true
- 28false
- 316false
- 432false
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Answer : 1. " 4"
Explanation :
Actually, a nibble consists of 4 bits, not 3. In computing, a nibble is a unit of data that consists of 4 bits, which can represent 16 different values (2^4). Each nibble can be expressed as a single hexadecimal digit (0 to F, where F represents 15 in decimal) and is half of a byte, which consists of 8 bits. So, 4 bits make up one nibble.
Q: What is the smallest unit of computer data?
902 063c641fabdbddb32fd97f181
63c641fabdbddb32fd97f181- 1bittrue
- 2bytefalse
- 3recordfalse
- 4filefalse
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Answer : 1. "bit "
Q: The mathematical knowledge which is the basis of computer?
770 063bfeff61b93047bc2182d82
63bfeff61b93047bc2182d82- 1binary system of numberstrue
- 2graphfalse
- 3equational equationfalse
- 4set theoryfalse
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Answer : 1. "binary system of numbers"
Q: The octal equivalent of the decimal number 214 is –
671 063e9fc06aa2a114c95185baf
63e9fc06aa2a114c95185baf- 1214false
- 2300false
- 3326true
- 4200false
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Answer : 3. "326"
Q: The decimal equivalent of the number (614)7 will be –
669 063e9fc7aaa2a114c95185d92
63e9fc7aaa2a114c95185d92- 11000false
- 2614false
- 3305true
- 4200false
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Answer : 3. "305"
Q: How many bytes are there in a kilobyte?
664 063e9fa963c221e1b4dc71b69
63e9fa963c221e1b4dc71b69- 11000false
- 2500false
- 31024true
- 42000false
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Answer : 3. "1024"
Q: Which of the following is not a mobile operating system?
621 064b923db23047f4c71ce15dd
64b923db23047f4c71ce15dd- 1DOStrue
- 2Android Droidfalse
- 3Apple iOSfalse
- 4None of the abovefalse
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Answer : 1. "DOS"
Explanation :
1. DOS is not an example of a mobile operating system.
2. Android Android (Android Droid) and Apple iOS (Apple iOS) is a mobile operating system.
3. Mobile operating systems are operating systems that run on mobile devices such as smartphones, tablets, and smartwatches.