1
Which register is a general purpose processing register?
Correct Answer
AC
☑ MCQ PRACTICE
Computer Organization and Architecture Unit 2
Practice objective questions for quick revision and examination preparation. Try answering each question before revealing the answer.
Computer Organization and Architecture - Unit-2
2
The jump and call operations depend on the value of the ______________.
Correct Answer
CD field
3
The microinstructions are divided into how many functional fields?
Correct Answer
Four
4
The control unit has a ___________________ and _______________________.
Correct Answer
Control memory and Main memory
5
A computer that employs a micro programmed control unit will have separated into _____________________ and _______________________.
Correct Answer
Hardware and Software
6
In the case of Zero-address instruction method, the operands are stored in ______________________.
Correct Answer
Push down stack
7
The addressing mode which makes use of in-direction pointers is ______________________.
Correct Answer
Indirect addressing mode
8
The addressing mode/s which use the PC instead of a general purpose register is ____________________.
Correct Answer
Relative
9
The addressing mode where you directly specify the operand value is ____________________________.
Correct Answer
Immediate
10
_____ addressing mode is most suitable to change the normal sequence of execution of instructions.
Correct Answer
Relative
11
Which addressing mode executes its instructions within the CPU without the necessity of referencing memory for operands?
Correct Answer
Register Mode
12
How is the effective address of base-register calculated?
Correct Answer
By addition of index register contents to the partial address in instruction
13
EA stands for:
Correct Answer
Effective address
14
In which addressing is the operand actually present in the instruction:
Correct Answer
Immediate addressing
15
Which is the simplest addressing mode, where an operand is fetched from memory:
Correct Answer
Direct addressing
16
Which addressing is a way of direct addressing:
Correct Answer
Register addressing
17
In which mode does the main memory location hold the EA of the operand:
Correct Answer
Indirect addressing
18
Which control refers to keeping track of the address of instructions:
Correct Answer
Program control
19
In program control, the instructions are set for the statement in a:
Correct Answer
Sequence
20
How many types of unconditional jumps are used in program control?
Correct Answer
3
21
Which carry is similar to rotate without carry operations:
Correct Answer
Rotate through carry
22
In the case of a left arithmetic shift, zeros are shifted to the ______:
Correct Answer
Right
23
In the case of a right arithmetic shift, the sign bit values are shifted to the _____:
Correct Answer
Left
24
In the micro-programmed approach, the signals are generated by ______.
Correct Answer
Machine instructions
25
A word whose individual bits represent a control signal is ______.
Correct Answer
Command word