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Asked Jan 25, 2019
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What are the internal components of a computer that make it function?

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Expert Answer

Step 1

A computer system consists of multiple hardware devices which, with the help of software, perform complex processing of information provided by the user and generate desired output. The main internal components of computer system are CPU, memory and motherboard. Let’s describe each in more details as follows:

Step 2

CPU: CPU is known as central processing unit of the computer and is the most important component. A CPU is integrated circuits which consist of logical unit and arithmetic logical unit. Logical unit performs various logical operations and arithmetic unit performs various arithmetic operations. CPU with the help of registers performs execution of computer programs instruction by instruction and is referred to as brain of the computer.  The main tasks of CPU is fetching instructions from memory, decoding instruction, executing instruction and writing back results.  

Step 3

Memory: Memory is the main component where computer programs which are to be executed next and results of already executed programs are stored. There are multiple memory components in computer such as RAM, ROM, and Hard disk. RAM is referred to as random access memory. RAM is in direct connection with the CPU and any next instruction to be executed, related to current executing program, is stored in RAM. It is volatile memory and losses its data with the loss of power supply. RAM provides fast access and storage of data and can meet up with th...

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