Essential Parts of Computer and How It Works

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Contents II. Introduction 2 III. Computers 2 A. CPU 2 B. Memory storage 3 1. Primary storage 3 2. Secondary storage 4 C. Peripherals 8 1. Ink-jets (bubble-jets) printers 8 2. Laserjet printers 9 IV. Connecting To Internet 10 V. Conclusion 12 VI. Reference List 13


Nowadays, running business in 20th century means that you got to be clever about technology. When companies are striving for higher achievements and more-efficient workability, innovation is what everyone craving for. That’s the spot where technology shoots.
Computer is one essential breed of our modern technology. However, while the majority of people know how to use computer, they don’t know how the machine works; the technical stuff.
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Cache located between CPU and RAM. It is a high-speed memory that accelerates CPU to exchange information from RAM (Shelly, et al, 2008). Cache works in a frequently accessible files and programs in the computer so it can be processed in shorter time. For example, a secretary’s computer which used for typing a lot will have its word-processing program opened faster than the other staffs’ computer.

Secondary storage * Stokes (2008) states that secondary storage is used for saving files and information in the matter of capacity. When programs are installed into the computer or files are inserted, secondary memory is the place where all the stuffs are put into. It gives information about how much computer can store data in its system. Files, programs, and other stuffs that put in secondary storage are saved permanently in the system. So, when the computer is off, the stuffs will stay at the same state and condition without having any lost parts.

Picture 2.1 Secondary storage works like cloth drawers for computers. As long as there is a space, it is fine to put more things. Image source:

There are various forms of secondary storage. Some attached in CPU and some is separated from computer. These are the kinds of it.
Hard Disk

Picture 2.2 Physical appearance of a hard disk. Image source:
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