MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

COMPUTER ARCHITECTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the purpose of the I/O controller in the computer?
A
provides the connection between external devices to the processor (via the data bus)
B
provides the connection between internal devices to the processor (via the data bus)
C
provides the barrier between external devices to the processor (via the control bus)
D
provides the connection between the internal memory and the processor (via the address bus)
Explanation: 

Detailed explanation-1: -I/O controllers are a series of microchips which help in the communication of data between the central processing unit and the motherboard. The main purpose of this system is to help in the interaction of peripheral devices with the control units (CUs).

Detailed explanation-2: -An I/O controller connects input and output (I/O) devices to the bus system of a central processing unit (CPU). It typically communicates with the CPU and with the system memory over the system bus and can control many devices.

Detailed explanation-3: -Input/Output (I/O) or expansion buses are responsible for connecting the peripheral devices (mouse, keyboard, flash drives) to the Central Processing Unit (CPU). The system bus and I/O buses are connected through a bridge that is implemented in the chipset of the processor.

Detailed explanation-4: -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.

Detailed explanation-5: -In an operating system, the primary role of the input-output traffic controller is to coordinate and control the actions of the hardware and the software in a central processing unit including the input, output, and the storage devices.

There is 1 question to complete.