Basic description of a computer system, Basic Computer Science

The main components of a computer system at a basic level
Computer System
We call computer system to the whole configuration of a computer, as well as the peripheral units and the system programming which make it a helpful and functional machine for a resolute task.
Central Processor
This part is also identified as central processing unit or CPU. Its functions have in reading and writing the contents of the memory cells, to forward data among memory cells and special registers, and decode and execute the instructions of a program. The processor has a sequence of memory cells which are used very frequently and thus, are part of the CPU. These cells are identified with the name of registers. A processor may have one or two dozen of these register.
Central Memory
It is a group of cells, at the present being fabricated with semi-conductors, used for common processes, such as the execution of programs and the storage of information for the operations.
The common name of these memories is Random Access Memory or RAM. The most important disadvantage of this type of memory is that the integrated circuits lose the data they have stored when the electricity flow is interrupted. This was the cause for the creation of memories whose information is not lost when the system is turned off. These memories get the name of Read Only Memory or ROM.
Input and Output Units
In order for a computer to be valuable to us it is necessary that the processor communicates by means of the exterior through interfaces which agree to the input and output of information from the processor and the memory. All the way through the use of these communications it is possible to set up information to be processed and to afterward visualize the processed data.
Auxiliary Memory Units
Because the central memory of a computer is costly and considering today''s applications it is also very restricted. Thus, the requirement to create practical and economical information storage systems occurs. Besides, the central memory misplaces its content when the machine is turned off, therefore making it not convenient for the permanent storage of data.
Posted Date: 5/4/2012 3:42:08 AM | Location : United States







Related Discussions:- Basic description of a computer system, Assignment Help, Ask Question on Basic description of a computer system, Get Answer, Expert's Help, Basic description of a computer system Discussions

Write discussion on Basic description of a computer system
Your posts are moderated
Related Questions
Question 1 Write a note on modems Question 2 What are the Safe Chatting Rules Question 3 Explain three basic kinds of hypertext links Question 4 Write a no

COMMUNICATION CHANNELS: A wire pair connecting two telephones is the simplest circuit, allowing communication in both directions. Other channels include coaxial cables, optica


Microcontroller: A highly integrated microprocessor designed specifically for use in embedded systems. Microcontrollers typically includes an integrated CPU, memory (a small amount

I need someone to help me with my Unix/Linux homework.

100 animals and their respiratory organs


Question 1 What are the dos and don'ts of Internet Reporting? Question 2 Write a long note on the later years of journalism in USA Question 3 What is a search engi

Qestion 1 What is .Net Framework? Qestion 2 Write short notes on constructors and destructors Qestion 3 Explain boxing and unboxing with examples Qestion 4 What is

Ms-PowerPoint Presentation for Promoting National Parks You have been hired by Tourism Department to make a presentation to the travel agents from different countries. Design