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Memory Unit (MU) CPU
The CPU also has a memory like human beings. It stores the data and Memory Unit
instructions that you give to the computer along with the results of the
processing. Control Unit
Output Devices
The result we get after processing is called Output. The devices which Arithmetic Logic Unit
help us to get these results or outputs are called output devices. Let us
study about some of the commonly used output devices.
Monitor
A monitor looks like a television. It is also known as a Visual Display Unit
or VDU. The monitor shows the data that you input and its result (output)
after the computer processes it.
Speakers
Speakers are used to hear music, voice and sound on a computer.
Headphones
Headphones are used to listen to music and sound without disturbing others
as they are worn by an individual. But wearing them for a long time can
affect your hearing power and cause damage to your ears.
Printer
A printer is used to print the result of the work done by the computer on
paper. We can print documents, drawings, images, etc. in black & white as well as in color using
a printer. There are two types of printers.
Laser Printer
It uses a laser beam to print the hard copy.
Inkjet Printer
It sprays ink on the paper to print the hard copy.
Computer System Organization - I/O devices, Storage devices 39

