1
The addition and subtraction operations can be combined into one common circuit by including _________________ with each full-adder.
Correct Answer
Ex-OR
☑ MCQ PRACTICE
Computer Organization and Architecture Unit 3
Practice objective questions for quick revision and examination preparation. Try answering each question before revealing the answer.
Computer Organization and Architecture - Unit-3
2
The 2's complement of 1101100 is:
Correct Answer
0010100
3
The first part represents a signed, fixed-point number called the ______________.
Correct Answer
Mantissa
4
The string of digits 101101 converted into a decimal number is:
Correct Answer
45
5
Convert the octal number 237 into a Hexadecimal number:
Correct Answer
09F
6
The sign followed by the string of digits is called ______.
Correct Answer
Mantissa
7
Which method(s) of representation of numbers occupies a larger amount of memory than others?
Correct Answer
Sign-magnitude
8
Which representation is most efficient to perform arithmetic operations on the numbers?
Correct Answer
2’s complement
9
Which method of representation has two representations for ‘0’?
Correct Answer
Sign-magnitude
10
When we perform subtraction on -7 and 1, the answer in 2’s complement form is _________.
Correct Answer
1000
11
Add the two BCD numbers: 1001 + 0100 = ?
Correct Answer
00010011
12
Carry out BCD subtraction for (68) – (61) using the 10’s complement method.
Correct Answer
00000111
13
Code is a symbolic representation of __________ information.
Correct Answer
Discrete
14
When numbers, letters or words are represented by a special group of symbols, this process is called __________.
Correct Answer
Encoding
15
A three digit decimal number requires ________ for representation in the conventional BCD format.
Correct Answer
12 bits
16
A group of bits used to represent a symbol is called a ____________.
Correct Answer
Byte
17
Which of the following is not a type of computer code?
Correct Answer
EDIC
18
The 9’s complement of 45 is _____________.
Correct Answer
54
19
Perform BCD addition of (23)BCD + (20)BCD.
Correct Answer
01000011
20
The Excess-3 representation of (0100)BCD is __________.
Correct Answer
0111
21
When we perform subtraction on -7 and -5, the answer in 2’s complement form is ________.
Correct Answer
1110
22
When we subtract -3 from 2, the answer in 2’s complement form is _________.
Correct Answer
0101
23
When 1101 is used to divide 100010010, the remainder is ______.
Correct Answer
1
24
Binary coded decimal is a combination of __________.
Correct Answer
Four binary digits
25
The decimal number 10 is represented in its BCD form as __________.
Correct Answer
00010000