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| COMPUTER |
COMPUTER is an electronics device or machine which performs their work based on instruction provided by hardware or software program..... It is a device which accept the data as input provided by the users , process it , and then produce result as an output . We can also store data on computer for later uses.
In a simple word we can define Computer as:- Any electronics devices which needs some instruction to do their work or any electronics device which takes input ,process it and produce result as an output. For example : calculator , fan , mobile ....etc are example of computer because these all need some instruction to performs their works .
SOFTWARE
Software is a set of instructions,programs or data which tells the computer what to do or how to execute a specific task.In a business operation software plays an important role in managing business in easy way or help to eliminate the human errors.
There are mainly two type of software :-
1.System software -This includes the program which are manage by the computer itself such as file management , operating system etc.
2.Application software-This is a program or we can say that a group of programs designed for end users because it enable users to perform the specific task such as a spreadsheet ,an email client, a photo editor etc..
HARDWARE
It is a collection of all the physical parts of the computer system which include monitor,keyboard,mouse etc...
In in simple word we can define hardware as all the components of the computer which we can physically touch.It also includes all the parts of computer which are present inside the computer such as hard disk drive,motherboard and many other ..
CPU
It stand for Central Processing Unit .It is also know as the brain of computer where almost all calculation takes place .
There are mainly 3 types of CPU:
Intel ,AMD and ARM. Intel and AMD are for the desktop and PC while ARM is for the embaded systems like tablets ,phones etc..
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