Tashkent University of Information Technology

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Tashkent University of 
Information Technology
040-21 group student 
Yuldashev Khursand’s
2- independence work of 
English 
Teacher: Naira Anvarovna 
Theme: A computer components 

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Plan: 
1.
About computer 
2.
Computer components 
A computer is a digital electronic machine that can be 
programmed to automatically perform sequences of 
arithmetic or logical operations (calculations). Modern 
computers can perform common sets of operations known 
as programs. These 
programs allow 
computers 
to 
perform a wide 
range of tasks. A 
computer system 
is a "complete" 
computer 
that 
includes 
hardware 
support, an operating system (basic software support) 
and peripheral equipment necessary and used for "full" 
operation. The term can also refer to a group of computers 
that are connected and function together, such as a 
computer network or computer cluster. 
A wide range of industrial and consumer products use 
computers as control systems. This includes simple 
special-purpose devices such as microwaves and remote 

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controls, as well as 
factory devices such as 
industrial robots and 
computer-aided design 
systems, as well as 
general-purpose devices 
such 
as 
personal 
computers and mobile 
devices 
such 
as 
smartphones. Computers 
power 
the 
Internet, 
which connects billions of 
other computers and users. 
Early computers were intended only for computing. 
Simple hand tools such as abacus have helped people do 
calculations since ancient times. At the beginning of the 
industrial Revolution, some mechanical devices were 
created to automate long tedious tasks, such as guiding 
patterns for weaving machines. More sophisticated 
electrical machines were doing specialized analog 
computing in the early 20th century. The first digital 
electronic computers were developed during the Second 
World War. The first semiconductor transistors in the 
late 1940s were followed by silicon-based MOSFETs 
(MOS transistor) and monolithic integrated circuits (IC) 
chip technology in the late 1950s, leading to the 
microprocessor and microcomputer revolution in the 

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1970s. Since then, the speed, power, and versatility of 
computers have increased dramatically, and the number of 
transistors has increased rapidly (as predicted by Moore's 
law), leading to the digital revolution in the late 20th and 
early 21st centuries.