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Note for COMPUTER ARCHITECTURE ORGANISATION - CAO by Shaili Mishra

  • COMPUTER ARCHITECTURE ORGANISATION - CAO
  • Note
  • CCS university - SCRIET
  • Master of Computer Applications
  • MCA
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Shaili Mishra
Shaili Mishra
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BY Asst. Prof. Shaili Mishra

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• Peripheral Devices • Input-Output Interface • Asynchronous Data Transfer • Modes of Transfer • Priority Interrupt • Direct Memory Access • Input-Output Processor • Serial Communication

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 The Input / output organization of computer depends upon the size of computer and the peripherals connected to it.  The I/O Subsystem of the computer, provides an efficient mode of communication between the central system and the outside environment.

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     Input or Output Devices attached to the computer are also called peripherals An external device connected to an I/O module Provide a means of exchanging data between the external device environment and the computer. Gets inputs from external sources ::Keyboard, mouse, touch screen, barcode reader, Mic, disk etc. Send outputs ::Monitor, Printer, Modem, Speaker, disk etc. Peripheral devices extremely slow to CPU :Large amount of data prepares in advance to transfer to CPU :The result of programs transfer to high-speed disk and then to the peripheral like printers

Lecture Notes