Memory sizes

Bit

Short for binary digit, the smallest unit of memory on a machine.


Nibble:

Half of an eight-bit byte - four bits.

Byte:

A byte is equal to 8 bits.

Kilobyte:

A kilobyte is 1,024 bytes

Megabyte:

When used to describe data storage, 1,048,576 bytes. Megabyte is frequently abbreviated as MB.










Gigabyte:

One gigabyte is equal to 1,024 megabytes. Gigabyte is often abbreviated as GB.

Terabyte:

This is approximately 1 trillion bytes. Terabyte is abbreviated as TB.


bit= binary digit 1 or 0
nibble= 4 bits
byte= 8 bits
kilobyte= 1024 bytes
megabyte= 1024 kilobyte
gigabyte= 1024 megabyte
terabyte=s 1024 gigabyte

8-BIT Pictures

 8-bit colour graphics is a method of storing image information in a computer's memory or in an image file, such that each pixel is represented by one 8-bit byte. The maximum number of colours that can be displayed at any one time is 256. There are two forms of 8-bit colour graphics. The most common uses a separate palette of 256 colours, where each of the 256 entries in the palette map to given red, green, and blue values.

Binary Code

A binary code represents text or computer processor instructions using the binary number system's two binary digits, 0 and 1. A binary code assigns a bit string to each symbol or instruction. For example, a binary string of eight binary digits (bits) can represent any of 256 possible values and can therefore correspond to a variety of different symbols, letters or instructions.