EBCDIC stands for what?

A. Extended Binary Coded Decimal Interchange Code

B. Extended Binary Character Decimal Interchange Code

C. Extended Byte Coded Decimal Interchange Code

D. Extended Binary Coded Digital Interchange Code

Computer · Introduction to Computing · page 4 of 13

Number Systems & Digital MCQs with Answers

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Number Systems & Digital Logic MCQs (31–40)

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Past paper MCQs in this chapter · See all past papers

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31.
Past Paper MCQ
Which logic unit gives 0 output if all inputs are 1?
Correct Answer: C. Both A and B
One-liner
Both NAND gate and NOR gate give output 0 when all inputs are 1.
32.
Which code is most commonly used to represent each character as an 8-bit code?
Correct Answer: D. ASCII
One-liner
ASCII is the most commonly used 8-bit character encoding scheme that represents each character using 8 bits (1 byte).
33.
What is another name for a bit in computer terminology?
Correct Answer: A. Binary Digit
One-liner
A bit is simply a contraction of the term Binary Digit, representing the smallest unit of data in computing.
34.
What is the maximum number of different values that can be represented by a byte?
Correct Answer: B. 256
One-liner
A byte consists of 8 bits and can represent 256 different values, ranging from 0 to 255.
35.
What is a string of eight binary digits (0's and 1's) commonly called in computing?
Correct Answer: A. Byte
One-liner
A string of eight binary digits is commonly called a Byte in computing.
36.
Past Paper MCQ
EBCDIC stands for what?
Correct Answer: A. Extended Binary Coded Decimal Interchange Code
One-liner
EBCDIC stands for Extended Binary Coded Decimal Interchange Code.
37.
What type of number is 1001?
Correct Answer: A. Binary number
One-liner
1001 is a Binary number because it consists only of the digits 0 and 1, which are the only valid digits in the binary (base-2) number system.
38.
What type of register can move data both to the right and to the left?
Correct Answer: D. Shift register
One-liner
A shift register is a type of register that can shift (move) data bits both to the right and to the left.
39.
How many bytes are there in one gigabyte according to the binary system?
Correct Answer: B. 2^30 bytes
One-liner
One gigabyte in the binary system equals 2^30 bytes (1,073,741,824 bytes).
40.
How many bits are there in a half word?
Correct Answer: C. 16
One-liner
A half word consists of 16 bits.

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Number Systems & Digital MCQs with Answers

Number Systems & Digital Logic MCQs (31–40)

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