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What is the shortcut key to "Undo" the last action In a document?

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Important Questions on Computer and Internet Basics

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Which of the following is not a function of the control unit?
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What are .bas, .doc, and .pmp examples of in computer?
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What is the difference between a CD-ROM and CD-RW?
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When cutting and pasting, the item cut is temporarily stored in the_____.
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Computer programs are written in a high-level programming language, however, the human-readable version of a program is called_____.
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A computer virus normally attaches itself to another computer program known as a_____.
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Documents converted to _____ can be published to the web.
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Which of the following is not a version of the Windows OP creating system software for PC?
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= Sum (B1 B0) is an example of a:
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When a file contains instructions that can be carried out by the computer. It is often called a(n)_____file.
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Which of the following is not an example of application software?
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_______ is a cross between a human language and a programming language?
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What kind of software would you most likely use to keep track of a billing account?
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Which of the following is not true about RAM?
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When you first turn on a computer, the CPU is preset to execute instructions stored in _____ .
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A device that not only provides surge protection but also furnishes the computer with battery backup power during a power outage is:
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Which one of the following is not the operation of operating system?
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The clock rate of a processor is measured in_____.
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The data storage hierarchy consists of_____.
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In a spreadsheet program the __________ contains related worksheets and documents.