Defination of computer : Computer is an electronic devices that process the data input by user and provides information in the from of result that is a computer is an electronic machine that follow the instruction given by user.
Full form of Computer: C.O.M.P.U.T.E.R
C : Common
O: Operated
M: Machine
P: Particular
U: Use in
T:Technical
E:Educational
R:Reserch
Who is the father of Computer?
: Charles Babbage
Importance of R.A.M
The full form of RAM is Random Acess Memory which is the primary memory of the Computer . It is a hardware memory that is used by the CPU to store data and programs.
Importance of R.O.M :
The full form of ROM IS Read Only Memory. this is a type of memory in which data is pre-recorded and the data stored in it can be retieved even after the Computer is turned off.
Importance of CPU :The full form of CPU is Central Processing Unit which is also called “Brain of Computer”.It is the most important processor a computer. it is a electronic secretary executes the instruction of the Computer program, such as arithmetic program logic control and input and output device.
Importance of H.D.D
The full form of H.D.D is Hard disk drive. It is used to storage drive, devices such a hard disk required to install the operating system program and additional devices to hold document.
Importance of Motherboard:- The Motherboard is one of the most important part of a Computer system. It hold including together many of computer components .Central processing unit memory an input and output devices and provide power to the Computer.
Importance of D.V.D :- The full form of D.V.D is Digital versatile disc. DVD are used to store high capacity file such as just standard videos and movies.
Introduction of Input devices:- In Computer input devices are electronic devices through which we input data instruction given by us into the computer input devices deliver the instruction given by us to the computer.
Example for:- Keyboard Touch screen
Mouse Microphone
Scanner Webcam
Joystick BCR/DCR/OMR
Introduction of Output devices:- An Output devices that provides the result of the instruction input into the computer to the user in the form of a hard copy or soft copy after processing . It is called an output devices.
Soft copy:- Soft copy is output that we see on moniter screen or hear through the speaker.
Hard copy:- Hard copy is the output that we get on the paper through a printer.
Example for :-Moniter ,Printer, platter , Projector, speaker, Headphone.
Concept of Hardware and Software
Hardware +Software =Computer
Introduction of Hardware:- Hardware is all the physical components that make up our computer and electronic devices and help them work.In includes the computer’s hardware circuit boards, processor, storage, memories etc.The Hardware in divided into two parts.
Internal Hardware
External Hardware
Internal Hardware:-
Internal Hardware is the Hardware that is installed inside the computer or the parts inside the computer that helps it to run are called Internal Hardware. Example- processor, Motherboard,R.A.M, Power supply, Hardware.
External Hardware:-
External hardware is the hardware that we see in the computer or on which we work it is called external hardware of the computer.Ex :- Input and Output devices etc.
Defination of Software :- Software is a set of instruction and programms which instruct the computer task.Software is a set of programs that control a computer system and cordinates between the various hardware of the computer.
The group of programs that control the functioning of the computer and called software
:System software
:Application software
:Lulity software
SYSTEM SOFTWARE
:windows , Android , Ios , Linux.
Translator software
:Compailer , Inter pretor , Assembler.
Aplication software
:Word proccesing software
:Data base software
:Graphics software.
Utility software (safety)
:Antivirus
:Disk
:Disk clean up.