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peripheral devices.

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The microprocessor takes the data from the real world , processes as is according to a program and sends the result to the output devices so that the result can be presented in the real world. The communication between the microprocessor and the outside world (user) is established through I/O devices only. These devices are known as peripheral devices. example. keyboard, mouse, joystick, printers etc.     Definition of peripheral devices : - The peripheral device is a computer device such as: - keyboard or scanner. These devices are not part of the computer. These are auxiliary devices of the computer. A peripheral device provides input / output (I / O) functions to a computer and does not have the capability of computing. Despite the lack of computing capability, it also acts as a computer accessory. The peripheral devices connect to the computer through several I / O interfaces, such as communications , universal serial bus (USB) and serial ports. Type...
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OPERATING SYATEM||HOW USER CAN INTERACT WITH THE COMPUTER HARDWARE

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The Operating system is an interface that provides interaction to user with computer hardware like hard disk, RAM , printers , keyboard etc. it's a most important program in a computer system.                       diagrammatic representation of user interface                                             with computer hardware    this is the one program that runs all the time ,as long as computer is operational .The fundamental goal of computer system to execute user programs and to make solving user problem easier.   the primary goal of an operating system is to make computer operation easy. The secondary goal of an operating system is to make efficient operation of the computer system .  What is an Operating system ? The Operating System acts as a medium between th...
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computer system and it's main component .

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COMPUTER SYSTEM                                              A computer system is made of following component :         1. HARDWARE         2.OPERATING SYSTEM         3.APPLICATION PROGRAMS         4.USERS 1.HARDWARE----------                                        The CPU ,the memory and the I/O devices provides the basic computing resources for the system. 2. Application programs--------                                                                   such as word processors, spreadsheet, compiler, and...
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