COMPUTER AND ITS FUNCTIONS
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What is a Computer?
The term computer is used to describe a device
made up of a combination of electronic and electromechanical (part electronic
and part mechanical) components. Computer has no intelligence by itself and is
referred to as hardware. A computer system is a combination of five elements:
·
Hardware
·
Software
·
People
·
Procedures
·
Data/information
Software is the
term used to describe the instructions that tell the hardware how to perform a
task. Without software instructions, the hardware doesn’t know what to do.
People, however, are the most important component of the computer system: they
create the computer hardware and software.
The basic job of
computer is processing information. Computers accept information in the form of
instruction called a program and characters called data to perform mathematical
and logical operations, and then give the results. The data is raw material
while information is organized, processed, refined and useful for decision
making. Computer is used to convert data into information.
intelligence - розум
raw – необроблений
convert – переробляти, перетворювати
refine – очищати
