1.
Define the word computer and Explain four basic
operation that a computer perform.
Answers
Answer:
A computer is a device that performs the information-processing cycle. The information-processing cycle consists of four basic operations: input, processing, output, and storage.
Answer:
A computer is a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.
Explanation:
A computer is a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.
There are four main equipment functions of a computer system: Input, Processing, Storage and Output.
Input: the transferring of information into a computer system; data entry. In addition to the more commonly found methods of input (keyboard, scanner, flash drive, CD), data can also be entered via vocal dictation and even body movements. For our purposes, input will be accomplished when you, the programmer, type source code at the keyboard or open a previously typed program.
Processing: the manipulation and control of information (data) within the computer system. The Central Processing Unit (CPU) is the "brain" of a computing device. Manipulations are handled by the Control Unit, the Arithmetic Logic Unit and Temporary Storage. The Control Unit is the computer's "policeman" that directs the traffic of the computer's "thinking". The Arithmetic Logic Unit performs mathematical and logical computations, and the Temporary Storage (RAM) holds the "thoughts" of the CPU.
Storage: the means by which information can be "permanently" saved (until such time as you wish to delete it). This storage may be a computer's internal or external storage. Storage usually occurs on a hard drive, flash drive, a CD, or a cloud account.
Output: the displaying of information. Output may occur via a display monitor, audio file, hard-copy printing on paper, or printing as 3-D models. For our purposes, output will be accomplished when your program displays information on the monitor.
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