A computer accepts (Input) information and manipulates (Processes) this input to get a desired Result (Output) on a sequence of instruction essentially, A computer system conses of three component that is input devices, CPU, Output Devices this can be shown by the following contractual diagram:
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| Fig: Showing Essential Components of a Computer System. |
Input devices are used in order to provide data to the central processing unit (CPU) for processing. After processing the input data is converted into meaningful information and this output is presented to the user with the help of output Devices.
In computer terminology, A device can be referred as a unit of hardware which is capable of providing input to the computer or receiving output or both. An Input Device is a Electro-Mechanical Device that allow the user to feed information into the computer system for analysis, Storage and to give commands to the computer, Data and Instruction are entered into the computer's memory through an Input Device. it Capture information and translates its into a form that can we processed and used by the other parts of the computer, After Processing is Transferred the Input data from the CPU (Central Processing Unit) to the Output Devices, Hence, Computer Provide the Results with the Help of Output Devices.
An Output Devices: An Output Device Converts Machine Readable Information into Human Readable form. The Basic functioning of output Devices is just the opposite of the input device that is the data is fad into the computer system through the Input device. While the output is taken out from the computer system through the output devices. However, The Output Which comes out from the CPU is in the form of Digital Signals. The Output Devices Display the Processed Information by Converting then into Graphical, Alfa-numerical or Audio, Visual Form.
Any hardware item that is attach to the main unit of a computer the CPU is refer to as "Peripheral Devices"
An Input Device is a Peripheral Device through which data is entered and transferred into machine. reachable form. the processing of the data by the computer system can be viewed as a 3 phase process:
Step 1: Data input via an Input Device
Step 2: Processing Of Data
Step 3: Data Output via Output Device
Input Devices play a major role in the processing of any data via the computer system. Generally data which is given to the input devices is Raw. Therefore, it is the function of the input devices to manipulate the Raw data and then send it for further processing. The Preparation of the computer input is the essential step in the creation of useful output. Hence, A computer system is set to be functional only when it is able to communicate with it external environment that is its users.
Any hardware item that is attach to the main unit of a computer the CPU is refer to as "Peripheral Devices"
An Input Device is a Peripheral Device through which data is entered and transferred into machine. reachable form. the processing of the data by the computer system can be viewed as a 3 phase process:
Step 1: Data input via an Input Device
Step 2: Processing Of Data
Step 3: Data Output via Output Device
Input Devices play a major role in the processing of any data via the computer system. Generally data which is given to the input devices is Raw. Therefore, it is the function of the input devices to manipulate the Raw data and then send it for further processing. The Preparation of the computer input is the essential step in the creation of useful output. Hence, A computer system is set to be functional only when it is able to communicate with it external environment that is its users.
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