The biggest number that can be represented in one byte is 11111111. Binary numbers have the ability to added together in a fashion similar to decimal numbers.
-127 or -128
One byte can represent 256 colours.
It isn't. The largest unsigned number that can be stored in one byte (8 bits) is 2^8 - 1 = 255.
if u bit a dik it past if u byte a dik its present tense.
gigabyte
Each byte represents a number. What that number means, will depend on where abouts it is, in a memory location or program. For example. In the graphics area of memory, the number will determine what color the pixel should be for that location. There will be a byte for every pixel. A pair of bytes will represent where the computer should look in the memory to retreive another number. A single byte will represent a command, when executed by the CPU. A program is operated on, one byte at a time in sequence, unless the operation code (another byte) tells it to jump to another part of the program or stop. A CPU has a look up table, where each number (represented by a byte) will have an operation. This operation could be, to just add 1 to the number in the present registry.
So far the largest one I know is the yottabyte
One byte of RAM can hold up to one byte of data. This is equivalent to one 8-bit (ASCII) character, such as a keyboard letter, number, or symbol.
Four
A byte (usually 8 bits). An 8-bit byte allows up to 256 unique characters to be represented, more than enough to accommodate all the letters, digits and punctuation marks in the Latin alphabet.
If the architecture allows each individual byte to be adressed then there are 4,000,000 possible addresses ranging from 0 to 3,999,999. So the largest address is 3,999,999 which is 3D08FF in hexadecimal representation
A BCD digit only uses the binary patterns that represent decimal numbers, ie 0000 - 1001; this requires 4 bits (1 nybble) so there can be 2 BCD digits to a byte. Therefore in 3 bytes there can be 3 × 2 = 6 BCD digits. The largest BCD digit is 1001 = 9. Assuming non-signed, the maximum 3 byte BCD number is 999,999.