# Does A Byte Have To Be 8 Bits?

## What’s the largest decimal number that you can represent with 3 bits?

7The largest decimal number that you can represent with 3 bits is 7..

## Are there always 8 bits in a byte?

3 Answers. Yes, a byte is always 8 bits in modern computing. In the book, the word and the size of the word is explicitly mentioned, while there is not a word (haha) about bytes. … The whole size is expressed in (16 bit) words rather than bytes.

## What is 8 bits of data called?

Each 1 or 0 in a binary number is called a bit. From there, a group of 4 bits is called a nibble, and 8-bits makes a byte. Bytes are a pretty common buzzword when working in binary. Processors are all built to work with a set length of bits, which is usually this length is a multiple of a byte: 8, 16, 32, 64, etc.

## How many bits are contained in 8 bytes?

64 bits(a) 64 bits are contained in eight bytes because a byte contains eight bits.

## Is a GB bigger than a KB?

There are (from largest to smallest): Gigabytes(GB), Megabytes(MB), Kilobytes(KB), Bytes and Bit. But that really doesn’t tell you much other than a gigabyte is bigger than a kilobyte.

## What’s bigger MB or GB?

1 Gigabyte is considered to be equal to 1000 megabytes in decimal and 1024 megabytes in binary system. As you can see, 1 Gigabyte is 1000 times bigger than a Megabyte. So, a GB is bigger than a MB.

## Why is ram a power of 2?

3 Answers. Memory is closely tied to the CPU, so making their size a power of two means that multiple modules can be packed requiring a minimum of logic in order to switch between them; only a few bits from the end need to be checked (since the binary representation of the size is 1000…

## What does Gigabyte mean?

GB is an abbreviation for gigabyte. A gigabyte is a measurement of data storage for computers, tablets, smartphones, gaming consoles, and other computing devices. In fact, most people have smart phones and have heard of the longer abbreviations for GB. You may be familiar with the slang for gigabytes: gigs!

## How many bytes is 4 numbers?

3. 1 Integers. Integers are commonly stored using a word of memory, which is 4 bytes or 32 bits, so integers from 0 up to 4,294,967,295 (232 – 1) can be stored. Below are the integers 1 to 5 stored as four-byte values (each row represents one integer).

## Why is computer memory in multiples of 8?

Because the industry settled on grouping 8 bits and calling it a byte, and a lot of systems have a data word size of a byte. Resulting in a more efficient system when data words are multiples of 8.

## Why are there 8 bits in a byte?

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. This sentence, for instance, is 41 bytes. That’s easily countable and practical for our purposes.

## Why is a kilobyte 1024 bytes?

Answer: Many people think that there are 1000 bytes in a kilobyte. … But there are really 1024 bytes in a kilobyte. The reason for this is because computers are based on the binary system. That means hard drives and memory are measured in powers of 2.

## Is a bit the same as a byte?

Aren’t they the same thing? Actually no, there’s a big difference between a bit and a byte. A byte is much bigger — eight times bigger, to be exact, with eight bits in every byte. By extension, there are eight megabits in every megabyte, and one gigabyte is eight times bigger than one gigabit.

## Why is a byte 255 and not 256?

A byte has only 8 bits. A bit is a binary digit. So a byte can hold 2 (binary) ^ 8 numbers ranging from 0 to 2^8-1 = 255. It’s the same as asking why a 3 digit decimal number can represent values 0 through 999, which is answered in the same manner (10^3 – 1).

## How many possible values can we have with 8 bits?

256There are 28 (256) different possible values for 8 bits. When unsigned, it has possible values ranging from 0 to 255; when signed, it has -128 to 127. Eight-bit CPUs use an 8-bit data bus and can therefore access 8 bits of data in a single machine instruction.

## Is ascii 7 bit or 8 bit?

ASCII uses 8 bits to represent a character. However, one of the bits is a parity bit. This is used to perform a parity check (a form of error checking). This uses up one bit, so ASCII represents 128 characters (the equivalent of 7 bits) with 8 bits rather than 256.

## Why is a byte called a byte?

The term “byte” was coined in the 1950’s to refer to the addressable blocks of memory in the IBM 7030 Stretch computer. The size of a byte was variable, specified in the instruction, and was spelled “byte” to avoid accidentally getting shortened to “bit”.

## What’s the smallest decimal number that you can represent with 3 bits?

Answer and Explanation: The smallest decimal number that you can represent with three bits is either 0 or -4.