Define byte kilobyte megabyte and gigabyte?

Answer 1

Here is a list of bits and bytes:

• 1 bit = binary digit
• 8 bits = 1 byte (B)
• 1000 bytes = 1 kilobyte (kB)
• 1000 kilobytes = 1 megabyte (MB)
• 1000 megabytes = 1 gigabyte (GB)
• 1000 gigabytes = 1 terabyte (TB)
• 1000 terabytes = 1 petabyte (PB)
• 1000 petabytes = 1 exabyte (EB)
• 1000 exabytes = 1 zettabyte (ZB)
• 1000 zettabytes = 1 yottabyte (YB)

Answer 2

A Byte is made up of 8 Bits (1 or 0).

A Kilobyte is 1024 Bytes. Not 1000 as Kilo says. 210 = 1024 ≈ 1000.

A Megabyte is 1024 Kilobytes.

A Gigabyte is 1024 Megabytes and so on...

Answer 3

Gigabytes and megabytes are units of measurement of disk space (or RAM!) on a computer system.

A gigabyte (GB) is 1000 times larger than a megabyte (MB).

There are several unites of measurement for data in computers, the smallest, a bit.

1 bit = 1 bit

1 kilobyte = 1000 bits

1 megabyte = 1000 kilobytes = 1 x 10^6 bits

1 gigabytes = 1000 megabytes = 1 x 10^9 bits

1 terabytes = 1000 gigabytes = 1 x 10^12 bits

It is rare if you find a hard drive for sale that is bigger than a few terabytes.

Answer 4

A byte is eight bits--bits are the smallest unit of storage, and can only register as 1 or 0. A megabyte is technically 2^20 (that's 1,048,576) bytes, but in certain contexts (usually in advertising sizes on hard drives, etc) it's 10^6 bytes (1,000,000). A gigabyte is 1,024 megabytes, or about 1 billion bytes.

Answer 5

You can think of this in two different ways, the computer way (1024) or the human way, (1000).

In normal conversation, which is now depreciated Computer Science, it refers to the following:

bit = '0' or '1'

byte = 8 bits

kilobyte = 1000 bytes

megabyte = 1000 kilobytes

gigabyte = 1000 megabytes

terabyte = 1000 gigabytes

This is based on the SI Prefix (also known as the metric prefix), for which each step is a power of 10.

In computer science, each of these steps is actually 1024 as a computer saves information in base 2 (1024 = 2^10). This is the reason you buy a 40 gig hard drive and you only get 38 gigs. They advertise 40 gigs using the 1000 definition of mega, then sell you the 1024 term. This problem multiplies as drives get bigger as each step (kilo->mega->giga->tera) have this issue so as drives get bigger, this difference will as well.

Currently, there is a push to remove this confusion by adding a 'Binary prefix', where the names would actually change to relate the 1024 vs 1000 difference.

kilobyte -> kibibyte

megabyte ->mebibyte

gigabyte ->gibibyte

terabyte ->tebibyte

Please note the two links to SI Prefix and Binary Prefix.

Answer 6

* 1 kilobyte (kB) = 1,000 bytes * 1 megabyte (MB) = 1,000,000 bytes * 1 gigabyte (GB) = 1,000,000,000 bytes

Answer 7

A megabyte is 1,000,000 bytes, One million bytes.

A Gigabyte is 1,000,000,000 bytes, A thousand million bytes, or 1,000 Megabytes.