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Elements of computer
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- 2. What is Computer? Theword “computer” comes from “compute” means “ to calculate” and Computer means “calculating machine”. Computer is an automatic electronic device that process data according to a set of stored instruction. Cann’t think but carry out instruction 0 and 1.
- 3. Main parts ofComputer: A computer consists of two major elements: hardware and software. A computer system is a combination of six elements:- Hardwere: Software: Data/Information: Procedure:CPU,RAM People:User,Programmer Communication:
- 4. Hardware: Hardwere: Computer hardware arethe physical parts or components of a computer,such as:- Monitor:The monitor works with a video card ,located inside the computer case, to display images and text on the screen. Keyboard: The keyboard is one of the main ways to communicate with a computer. There are many different types of keyboards, but most are similar and allow the same basic tasks. Mouse:The mouse is another important tool for communicating with computers.
- 5. Video Card: Videocard is an expansion card that allows the computer to send graphical information to a video display device such as a monitor, TV, or projector. CPU:Central Processing Unit (CPU) is the brain of computer Where most calculation take place. Motherboard:Motherboard is the main circuit board of a computer.Another is call logic board. Printers: A printer is used to print documents, photos, and anything else that appears on computer screen. Speakers/headphones: Speaker and headphone are output devices, which means they send information from the computer to the user.
- 6. Software: Software: Software isa logical existence of a computer. There are two type of a software. 1:System software: *Operating system:Dos,Unix,Linus *System development Programme:Compiler and interpretor *Utility:Anty Virus 2:Application Software: *General purpose Application Software:MS-Word,Excel,Powerpoint *Specific Purpose Application:Payroll System,Management system
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