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Btec Unit 2 - Computer System Assignmnet 1

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Btec Unit 2 - Computer System Assignmnet 1
Computer: We are living in the age of modern science. We can see the creation and invention of science all around us. From morning till we go to bed at night we use the invention of science. Computer is one of the greatest and valuable invention of modern science. The word “Computer” came from the Latin word “computatrum”. Basically, computer is an electronic device which has the capability of receiving command and turning the command into result. Computer has also the capability to manipulate, save and retrieve data or information. A computer is an electronic device, operating under the control of instructions (software) stored in its own memory unit, that can accept data (input), manipulate data (process), and produce information (output) from the processing. Generally, the term is used to describe a collection of devices that function together as a system.
Computers can perform four general operations, which comprise the information processing cycle.
Input
Process
Output
Storage

Computer System:
Central processing unit (CPU), motherboard, input devices, output devices, power supply, backing storage devices and other peripheral devices are the main components of a Computer. To run a computer all these components should run altogether. By working together, these components makes up a system that can transfer commands to central processing unit; identify the actions needed to carry out the commands and complete the commands with ease. That is Computer System.
Basically, a computer works by the help of five major functional categories of devices. Those are: Processing unit, internal memory, Input, Output and Storage.

Internal Memory: An Internal memory of a computer is kind of a temporary storage system which is used by the computer system while starting up the computer to run programs and softwares. Internal memories have small chips which are either connected to the motherboards or have specific slots to connect them. The sizes of some internal



Bibliography: (n.d.). Retrieved from Yahoo Answers: http://answers.yahoo.com/question/index?qid=20070617115532AAhl4mh From Class Exercise. (2013, 2 6). Google. (n.d.). Retrieved from image.google.com/ Gordon School. (n.d.). Retrieved from http://www.gordonschools.aberdeenshire.sch.uk/Departments/Computing/StandardGrade/SystemsWeb/9TypesOfComputer.htm komecomputer. (n.d.). Retrieved from http://www.komecomputers.com/classification-of-computers.html

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