1. hardware
Hardware is an important element of the information system means a computer device around, including communication devices for linking computers into a network, such as a printer. Can be divided into 3 units:
?-Data retrieval unit (input unit): character keys, mouse pad
-central processing unit (CPU: Central Processing Unit)
-display unit (unit output): monitor, printer,
.The computer compared to humans, they found that it was similar to a human getting the data from the senses, they are sent to the brain to think of, and then command an interaction.
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