Computer Knowledge Practice Question and Answer
8Q: Which memory is nonvolatile? 2007 05b5cc604e4d2b4197774b4ed
5b5cc604e4d2b4197774b4ed- 1Floppy discsfalse
- 2Magnetic tapefalse
- 3ROMfalse
- 4All of the abovetrue
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Answer : 4. "All of the above"
Explanation :
Answer: D) All of the above Explanation: A computer has two types of memory. 1. Non-volatile and 2. Volatile. Volatile memory is computer memory that requires power to maintain the stored information. * It is a temporary memeory which cannot contain information permanently. Example :: RAM or Random Access Memory Non-volatile memory is computer memory that can retain the stored information even when not powered. * It is a permanent memory in which data is stored in permanently. Examples :: Hard disc, ROM, Floppy discs, Magnetic tape,...
Q: When was the first discovery of modern computers?
2005 05f64427abecdf06fd264be5d
5f64427abecdf06fd264be5d- 11949false
- 21951false
- 31946true
- 41947false
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Answer : 3. "1946"
Q: Dot-matrix Printer is a type of
1998 05e9693efaff06865e983715a
5e9693efaff06865e983715a- 1tapefalse
- 2printertrue
- 3diskfalse
- 4busfalse
- 5None of thesefalse
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Answer : 2. "printer "
Q: The memory power of man is comparable to that of computer?
1979 0613894e75ee3b079c60b49a8
613894e75ee3b079c60b49a8- 1Generaltrue
- 2highfalse
- 3lowfalse
- 4Averagefalse
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Answer : 1. "General"
Q: What is the purpose of SSO (Single Sign-on)?
1972 061c48f5064388627a25331de
61c48f5064388627a25331de- 1Reduce the auxiliary desk cost.false
- 2Improves customer satisfaction.false
- 3Increases productivity.false
- 4all of the abovetrue
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Answer : 4. "all of the above"
Q: The primary purpose of an operating system is:
1971 15f05497cb864a45d9075ffb2
5f05497cb864a45d9075ffb2- 1To keep system programmer employedfalse
- 2To make computer work easilyfalse
- 3To make the most efficient use of the computer hardware.true
- 4To allow people to use the computerfalse
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Answer : 3. "To make the most efficient use of the computer hardware. "
Q: A hacker that changes or forges information in an electronic resource, is engaging in _________ .
1969 062d90136dc73b0303f96e91c
62d90136dc73b0303f96e91c- 1Cyber Crimefalse
- 2Simulationfalse
- 3Sniffingfalse
- 4data diddlingtrue
- 5None of thesefalse
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Answer : 4. "data diddling "
Q: C in MICR stands for ______.
1968 164940d7913e8bde032353ef6
64940d7913e8bde032353ef6- 1Computerfalse
- 2Codefalse
- 3Colourfalse
- 4Charactertrue
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Answer : 4. "Character"
Explanation :
1. The full form of MICR is Magnetic Ink Character Recognition. It is a technology that reads information in checks and other financial documents.
2. Other symbols in MICR have meanings.
- M: Magnetic Ink
- I: Ink
- C: Character
- R: Recognition