What is computer

Computer is a electronic device that calculate very large data in a mini second. In other words Computer is an automatic apparatus for making calculation or controlling operation that are expressible in numerical or logical terms.

Computer -: Computer is a small word it’s full name is Common Operating Machine Purposely Used for Technological and Educational Research.

In other words we can say that the computer is a combination of Hardware and software.

History of computer -:  The first computer name was ENIAC. It was built during World War second . It was designed to help automate the calculations being done by human computers. .ENIAC  was developed by the J.P.Eckert and J.W.Mauchly

Computer hardware -: Which part that is showing here this is called the computer hardware. Main computer hardware parts list has been given here..

  1. Monitor -:  Monitor is a output device. It looks like a TV. Monitor is a display unit where we can see out output result here.
  2. Keyboard-: Keyboard is an input device used to input the data to the computer. The layout of keyboard is just like the traditional typewriter. The computer keyboard is rectangular or near-rectangular buttons, called “keys”. The characters are engraved or printed on the keys. A standard keyboard contains a total of 101 to 104 keys.
  3. Central processing Unit-: Central processing unit is the brain of computer. CPU has two parts. 
  4. Mouse-: Mouse is the pointing device used to move a graphical pointer on the screen. This graphical pointer is also called cursor. Using mouse you can give commands. Draw images and perform other input tasks.Physically, a mouse consists of a small case, held under one of the user’s hands, with one or more buttons. When you roll the mouse across a felt surface, the screen censors the direction of mouse movement and cursor on the screen follows the motion of the mouse.
  5. Printer-: Printer is also output devices. By the help of the printer we can get the hard copy. There are multiple types printers are available in the market.
  6. Speaker -: It is also output device. it is a digital output device.

Computer software -: There are many type computer software. Software are the set of programs/packages which we can not touch and feel as like hardware(It is device which we can touch and feel).Software provide better communication between computer/PC and user.These are divide into two category

  1. System Software -:  Which software that work intermediate between the user and computer called the system software for example operating system,firmware etc.
  2. Application software -: This type software are create for special purpose. For example Microsoft word, Microsoft Power Point etc.

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