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Computers are used for many things in 

everyday life. They are capable of so 

much. A computer could be narrowed 

down to 4 basic things. These things 

are called Input, Output, Processing 

and storage. It sounds simple and it 

is. They are all four important and 

having two or three out the four things 

are not enough. They are equally 

important separately and work together 

to form what we know as a computer. 

There are many different type of inputs to a 

computer. They all have different purposes. 

Some inputs hook directly to the computer to 

help control the processing. You have to go 

through a lot to for inputs. Such as 

programming them so the actual computers 

understand them and what they are trying to 

do. The main and most popular types of 

inputs are a keyboard and a mouse. The 

mouse help to control the computer so you 

can use things like applications.

Outputs can sometimes be confused 

with inputs. Like I said earlier they 

are equally as important as one 

another. But are different. The input 

are more things that help control the 

computer and the output are more 

things the computer control. For 

example a computer monitor is an 

output device. Another popular output 

device is a printer. These things can be 

tricky and there is also things that are 

both inputs and output such as a 

modem. 

Processing is important to a computer. 

It is pretty much the brains of the 

computer. An important processing 

system is called a CPU (Central 

Processing Unit). It is also known as 

microprocessor. Without it the input 

will not work the same and nothing will 

work properly. CPU pretty entire 

purpose is to process programs.  

A computer would be very stressful 

without storage. All computers have 

different amounts of storage and 

different things use different amount 

of storage. Storage is often confused 

with the memory of the computer. 

Storage holds things like data and 

instructions and is not connected to the 

motherboard like memory. When the 

computer is not powered on the storage 

doesn’t really change or go anywhere 

like the memory. Without storage 

computers will be very stressful 

because you would have to re-enter 

every amount of data you want every 

time you power on the computer. 

"How Computers Work: Input and Output." 

How Computers Work: Input and Output. N.p., 

n.d. Web. 09 Sept. 2015.

N.p., n.d. Web.

"What Is a CPU and What Does It Do? - 

Definition of CPU." Buildcomputers.net. N.p., 

n.d. Web. 09 Sept. 2015.

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