COMPUTER OPERATIONS - Computer Master -Computer Notes and video tutorials to learn computer skills

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23.6.12


Input: (Mouse, Keyboard, Scanner, Webcam etc…)
Input devices are things we use to put information INTO a computer. This is the process of entering data and programs in to the computer system. The input unit takes data from us to the computer in an organized manner for processing.
Output: (Monitor, Printer, Projector etc…)
Output devices are things we use to get information OUT of a computer. This is the process of producing results from the data for getting useful information. Again the output is also stored inside the computer for further processing.
Central Processing Unit (CPU) 
It takes data input and gives output results. The task of performing operations like arithmetic and logical operations is called processing. The Central Processing Unit (CPU) takes data and instructions from the storage unit and makes all sorts of calculations based on the instructions given and the type of data provided. It is then sent back to the storage unit.
Storage: (Hard Disk, Pen drive, Floppy, CD & DVD etc…)
The process of saving data and instructions permanently is known as storage. This storage unit or the primary storage of the computer system is designed to do the above functionality. It provides space for storing data and instructions. All data and instructions are stored here before and after processing.

- By collecting and preparing

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