Monday, 13 April 2020

Input-Output and Data entering process

Computer is a machine which works by the combination of input and output devices. Let's see about input and output of a computer.

                                                            Input 

Input is basically a process which means any information or data sending to a computer for processing. Generally input is sent to a computer using input devices. Input devices convert what we understand into what the system unit can process. Let's see some input devices.

Keyboard :


 A computer keyboard is an input device that is used to enter characters and functions by pressing buttons or keys. Its a basic input device which contains letters, numbers and special characters.


Mouse :

Mouse is an input device that works by moving on a flat surface which allows the cursor to move different places on the screen. 

Touch screen :

Touch screen is an advance type of input which requires a display device that allows an user to interact the computer using finger or stylus. All the mobiles, tabs, etc are using this technology now.

                                                           Output

Output is basically any information that is processed by and sent out from a computer or other electronic devices. Output devices works for this process. Output devices covert what the system unit has processed into a form that we can understand. Lets see some output devices.

Monitors:

A monitor is basically a screen or visual display unit which displays the displays the videos or graphics information generated by a connected computer. 

Printer :

Printer is an output devices which allows an user to print letters, texts or graphical items on a paper.

Speaker :

Speaker is an output device that generates sound from the processed informations and signals. The signal is basically created by the sound card of a computer. 


                                 Data interning process

A data basically enters into a computer by an input device like keyboard, mouse, touch screen, touch pad, stylus, joystick etc. Data is a raw fact which is needed to process. Basically the data is sent to the processing unit by the input devices and after processing the output devices gives us the uner interface. That's how data a computer works. 

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