Question

With the aid of a diagram explain the operation of an input output interface.

Answer 1

Answer:

Explanation:

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

The most common input output devices are:

i) Monitor

ii) Keyboard

iii) Mouse

iv) Printer

v) Magnetic tapes

The devices that are under the direct control of the computer are said to be connected

online.

Input - Output Interface

Input Output Interface provides a method for transferring information between internal

storage and external I/O devices.

Peripherals connected to a computer need special communication links for interfacing them

with the central processing unit.

The purpose of communication link is to resolve the differences that exist between the

central computer and each peripheral.

The Major Differences are:-

1. Peripherals are electromechnical and electromagnetic devices and CPU and

memory are electronic devices. Therefore, a conversion of signal values may be

needed.

2. The data transfer rate of peripherals is usually slower than the transfer rate of CPU

and consequently, a synchronization mechanism may be needed.

3. Data codes and formats in the peripherals differ from the word format in the CPU and

memory

Answer 2

Explanation:

Input Output Interface provides a method for transferring information between internal storage and external I/O devices. Peripherals connected to a computer need special communication links for interfacing them with the central processing unit.