Computer Knowledge Practice Question and Answer
8Q: The brain of any computer system is 2123 15b5cc607e4d2b4197774b54e
5b5cc607e4d2b4197774b54e- 1CPUtrue
- 2Memoryfalse
- 3Controlfalse
- 4ALUfalse
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Answer : 1. "CPU"
Explanation :
Answer: A) CPU Explanation: Central Processing Unit (CPU) is the brain of any computer system.
Q: OCR stands for………..
2120 15da0479777652578d4efc0f7
5da0479777652578d4efc0f7- 1Optical Character Recognitiontrue
- 2Optical CPU Recognitionfalse
- 3Optimal Character Recognitionfalse
- 4Other Character Recognitionfalse
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Answer : 1. "Optical Character Recognition"
Q: Which of the following is not an Output device? 2115 05b5cc6abe4d2b4197774cffc
5b5cc6abe4d2b4197774cffc- 1Scannertrue
- 2Moniterfalse
- 3Printerfalse
- 4Speakersfalse
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Answer : 1. "Scanner"
Explanation :
Answer: A) Scanner Explanation:
Q: With which coordination does the main memory work?
2083 05ff7de86c24e1471a7f8027b
5ff7de86c24e1471a7f8027b- 1INTELfalse
- 2Special work cardfalse
- 3RAMfalse
- 4CPUtrue
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Answer : 4. "CPU"
Q: 1 kilobyte (KB) equals how many bytes?
2080 05e46220f93bdc675418affa6
5e46220f93bdc675418affa6- 11024 bytestrue
- 21024 megabytesfalse
- 31024 gigabytesfalse
- 4None of thesefalse
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Answer : 1. "1024 bytes"
Q: Which is the other name for LAN Card?
2067 05e99b1811dda1f42d77fd338
5e99b1811dda1f42d77fd338- 1Network connectorfalse
- 2Internet Cardfalse
- 3MODEMfalse
- 4NICtrue
- 5None of thesefalse
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Answer : 4. "NIC "
Q: The intersection of a column and a row 2065 05b5cc651e4d2b4197774bcdb
5b5cc651e4d2b4197774bcdb- 1Celltrue
- 2Menufalse
- 3Keyfalse
- 4Fieldfalse
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Answer : 1. "Cell"
Explanation :
Answer: A) Cell Explanation: The intersection of a column and a row in a spread sheet is called as a cell or a bon.
Q: Which memory needs refresh? 2044 05b5cc5ffe4d2b4197774b421
5b5cc5ffe4d2b4197774b421- 1DRAMtrue
- 2SRAMfalse
- 3ROMfalse
- 4None of thesefalse
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Answer : 1. "DRAM"
Explanation :
Answer: A) DRAM Explanation: Memory refresh is the process of periodically reading information from an area of computer memory and immediately rewriting the read information to the same area without modification, for the purpose of preserving the information. Memory refresh is a background maintenance process required during the operation of semiconductor dynamic random-access memory (DRAM), the most widely used type of computer memory.