Test: Control Unit- 1 - Computer Science Engineering (CSE) MCQ


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10 Questions MCQ Test GATE Computer Science Engineering(CSE) 2025 Mock Test Series - Test: Control Unit- 1

Test: Control Unit- 1 for Computer Science Engineering (CSE) 2024 is part of GATE Computer Science Engineering(CSE) 2025 Mock Test Series preparation. The Test: Control Unit- 1 questions and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus.The Test: Control Unit- 1 MCQs are made for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Control Unit- 1 below.
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Test: Control Unit- 1 - Question 1

The system bus is made up of

Detailed Solution for Test: Control Unit- 1 - Question 1

System bus is a single computer bus that connects the major components of a computer system, combining the function of a data bus to carry information, an address bus to determine where it should be sent and a control bus to determine its operation.

Test: Control Unit- 1 - Question 2

A hardware interrupt is

Detailed Solution for Test: Control Unit- 1 - Question 2

An interrupt alert the processor to a high-priority condition requiring the interruption of current code the processor is executing. Hardware interrupt are generated by hardware devices, when something unusual happned also called external interrupt.

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Test: Control Unit- 1 - Question 3

______ is a piece of hardware that executes a set of machine-language instructions.

Detailed Solution for Test: Control Unit- 1 - Question 3

Processor or processing unit is an electronic CKT which perform operations on some external source, usually memory or some data stream. Processor executes a set of machine language instructions.

Test: Control Unit- 1 - Question 4

To prevent signals, from colliding on the bus, _______ prioritize access to memory by I/O channels and processors.

Detailed Solution for Test: Control Unit- 1 - Question 4

To prevent signals from colliding on the bus, a controller prioritize access to memory by I/O channels and processors.

Test: Control Unit- 1 - Question 5

_______ improve system performance by temporarily storing data during transfers between devices or processes that operate at different speeds.

Detailed Solution for Test: Control Unit- 1 - Question 5

Buffers is a data area shared by hardware devices or program processes that operate at different speeds or with different sent of priorities.

Test: Control Unit- 1 - Question 6

Halt operation comes under ________ .

Detailed Solution for Test: Control Unit- 1 - Question 6

Halt operation comes under control transfer.

Test: Control Unit- 1 - Question 7

A bi-directional bus between a memory and CPU, possibly has three states. While the bus behaves like a open circuit, the output does not carry a signal in other state it carry signal in both direction. Which one of the following is 3rd state?

Detailed Solution for Test: Control Unit- 1 - Question 7

Three states of bi-directional bus is input data to RAM, output data to RAM and high impedance.

Test: Control Unit- 1 - Question 8

Horizontal microinstruction have which of the following attributes?
1. Short formats
2. Limited ability to express parallel micro operations.
3. Considerable encoding of the control information;

Detailed Solution for Test: Control Unit- 1 - Question 8

Horizontal micro instructions have following attributes:
1. Long formats.
2. Ability to express a high degree of parallelism .
3 . Little encoding of the control information.

Test: Control Unit- 1 - Question 9

Consider the following figure:

The above circuit represents____.
1. Hard-wired control unit
2. Micro programmed control unit

Detailed Solution for Test: Control Unit- 1 - Question 9

Since PLA is neither a hard-wired model nor a memory.
∴ We can say control unit with PLA as Hardwired or micro programmed control unit.

Test: Control Unit- 1 - Question 10

 A microprogrammed control unit

Detailed Solution for Test: Control Unit- 1 - Question 10

A micro-programmed control unit facilitates easy implementation of new instructions than hardwired.

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