Computer Question And Answers
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Computer Question And Answers
Q The operating system called UNIX is typically used for
A. Desktop computers B. Laptop computers
C. Supercomputers D. all of these
A- D. All Of These
Q All of the following are examples of real security and privacy risks EXCEPT
A. Hackers’ B. spam
C. Viruses’ D. identity theft
A- B. spam
Q UNIVAC is
A. Universal Automatic Computer B. Universal Array Computer
C. Unique Automatic Computer D. Unvalued Automatic Computer
A- Universal Automatic Computer
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Q The basic operations performed by a computer are
A. Arithmetic operation B. Logical operation
C. Storage and relative D. All the above
A- All the above
Q The two major types of computer chips are
A. External memory chip B. Primary memory chip
C. Microprocessor chip D. Both 2 and 3
A- Both 2 and 3
Q Microprocessors as switching devices are for which generation computers
A. First Generation B. Second Generation
C. Third Generation D. Fourth Generation
A- Fourth Generation
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Q What is the default file extension for all Word documents?
A. FIL B. TXT
C. DOC D. WRD
Q Which of the following is a Web browser?
A. Paint B. PowerPoint
C. Firefox D. Word
Q Which of the following memories is an optical memory?
A. Floppy Disk B. CD-ROM
C. Core Memories D. Bubble Memories
A- Bubble Memories
Q A terabyte comprises
(A) 1024 gigabyte (B) 1024 kilobyte
(C) 1024 megabyte (D) 1024 byte
A- 1024 gigabyte
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Q The Contents of ___ are lost when the computer turns off?
(A) Input (B) Output
(C) Memory (D) Storage
Q What process should be used to recall a document saved previously?
(A) Copy (B) Save
(C) Retrieve (D) Enter
Q What term applies to a collection of related records in a database?
(A) Field (B) File
(C) Both a and b (D) None of the above
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Q The number system on which the modern computers operate is________
A. Decimal number system B. Octal number system
C. Binary number system D. Hexadecimal number system
A- Binary number system
Q The following is not a input device
A. Keyboard B. Printer
C. Voice recognition device D. Optical scanner
Q The word length of a computer is measured in:
A. Bits B. bytes
C. Milli Meters D. meters
Q A byte represents a group of
A. 8 bits B. 10 bits
C. 22 bits D. 32 bits
A- 8 bits
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Q How is power supplied to a low-power USB device?
A. Through a power cable B. From an external power supply
C. Directly from the computers power supply D. Through the USB cable
A- Through the USB cable
Q The ______ data mining technique derives rules from real-world case examples.
A. Rule discover B. Signal processing
C. Neural nets D. Case-based reasoning
A- Neural nets
Q Who was the first President of Microsoft Corporation?
A. Steve Jobs B. Bob Gates C. Bill Gates
A- Bill Gates
Q ______ is a set of bits that represent a single character
A. ASCII B. kilobyte C. byte
Q A computer virus is
A. A hardware B. a computer program
C. A client server D. a read-only memory
A- A computer program
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Q Which of the following devices is not an output device?
A. Visual display unit B. Plotter
C. Key board D. Printer
A- Visual display unit
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