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How Computer Input, Process and Output Data Into Information

IT Notes, Computer Science Notes


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Old 05-12-2011, 01:32 AM   #1 (permalink)
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Smile How Computer Input, Process and Output Data Into Information


How Computer Input, Process and Output Data Into Information


Step 1

Data is entered through input devices e.g. keyboard.

Step 2

Control Unit (CU) After receiving instruction from the main memory to sent signal and commands , CU sent signal and commands to various part of the computer system to prepare and accept the data. After the data is processed it is sent back to main memory which stores it temporarily before the next command is executed. The data is then send to secondary storage devices after secondary storage device had received command from the Control Unit. For the information to be put into a hard copy i.e. paper, the information moves from the secondary storage device to the main memory which waits for signals and commands from Control Unit. After receiving signal from the Control Unit that the output devices are ready to receive data, the main memory releases the data to the output devices like printers, plotters for printing

Step 1

Data is entered through input devices e.g. keyboard.

Step 2

Control Unit (CU) After receiving instruction from the main memory to sent signal and commands , CU sent signal and commands to various part of the computer system to prepare and accept the data. After the data is processed it is sent back to main memory which stores it temporarily before the next command is executed. The data is then send to secondary storage devices after secondary storage device had received command from the Control Unit. For the information to be put into a hard copy i.e. paper, the information moves from the secondary storage device to the main memory which waits for signals and commands from Control Unit. After receiving signal from the Control Unit that the output devices are ready to receive data, the main memory releases the data to the output devices like printers, plotters for printing


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