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Computer MCQs: 1,296 practice questions with answer choices and available explanations. Page 31 of 87.

Computer MCQs

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What is the use of a horizontal Scroll Bar in MS Excel?

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A.to view the data from left to the right
B.to view the data in Excel from up and down
C.None of these
D.to view the data from right to the left
Explanation: In Microsoft Excel, the horizontal scroll bar moves a worksheet to the left or right, one column at a time. This allows users to view and move data horizontally across a worksheet. How to use the horizontal scroll bar Click the scroll arrows to move through a range of values Drag the scroll box to move through a range of values Click the region between the scroll box and either scroll arrow to move through a page of values

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Control unit of a digital computer is often called the ____________?

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A.main memory
B.clock
C.nerve center
D.all of them
Explanation: The Control Unit of the computer is called the nerve centre of the computer. The brain of the computer is called the CPU. CPU stands for Central Processing Unit. The control unit (CU) of a digital computer is part of the central processing unit (CPU), which is sometimes called the “brain” of the computer. Explanation The CPU is a complex set of electronic circuitry that executes instructions from a computer program. The CU is a component of the CPU that directs the operation of the processor. The CU receives data from the user, translates it into control signals, and delivers them to the processor. The processor then instructs the computer’s hardware on what operations to perform. The CPU also includes the arithmetic logic unit (ALU), which performs arithmetic functions like addition, subtraction, and division.

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