MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

COMPUTER ARCHITECTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many bits are in a single byte?
A
4
B
8
C
12
D
16
Explanation: 

Detailed explanation-1: -A byte is a grouping of eight bits. Byte-addressable means that the computer stores data in bytes instead of single bits for example.

Detailed explanation-2: -The term is sometimes spelled nybble. byte: Abbreviation for binary term, a unit of storage capable of holding a single character. On almost all modern computers, a byte is equal to 8 bits. Large amounts of memory are indicated in terms of kilobytes, megabytes, and gigabytes.

Detailed explanation-3: -The byte was originally the smallest number of bits that could hold a single character (I assume standard ASCII). We still use ASCII standard, so 8 bits per character is still relevant.

Detailed explanation-4: -A byte is a group of 8 bits. A bit is the most basic unit and can be either 1 or 0. A byte is not just 8 values between 0 and 1, but 256 (28) different combinations (rather permutations) ranging from 00000000 via e.g. 01010101 to 11111111 . Thus, one byte can represent a decimal number between 0(00) and 255.

Detailed explanation-5: -A collection of eight bits is called Byte. Somebody made a joke about a group carrying a byte of the data, and the term stuck. Sometimes you hear a group of four bits called a nibble. The largest number you can represent with 8 bits is 11111111, or 255 in decimal notation.

There is 1 question to complete.