(Wikipedia) Computers are tools used to process the data according to procedures that have been formulated. now many people already use computers, both in field work and in the field of entertainment and communications field. including field work: banks, administration, editing, internet cafe and advertising. in the field of entertainment: movies, online games. while in the field of communication: telephone and internet.
computer is a series of various electronic appliances who set up in such a way and provided the data regarding to current algorithms can reply with what the desire by the wearer.
in the circuits, the author mentions only a few parts of the course, eg CPU, monitor, keybord and mouse
