256.
Here we have 8 bits...
00000000 or 11111111 or anything in between.
If we have 11111111 this is essentially 1 + 2 + 4 + 8 + 16 + 32 + 64 + 128
This adds up to 255. But wait....0 can represent something as well...255 + 1 = 256
However, in practice, 256 characters are never used for 8 bits. The theoretical maximum is indeed 256, however the ASCII (American Standards Code for Information Interchange) standard dictates that the first bit is to be used for something called parity. This is a small check to make sure that the correct code has been transmitted. For example, if there was the following transmission:
Character: @ASCII
ASCII Code: 06410
Binary: 010000002
However, there was electronic interference...
Interference: 000000012
Result:
00000001 = 110
01000000 = 6410
----------------------
01000001 = 6510
Character: AASCII
If this was an email address, instead of being john.smith@microsoft.com, it would now be john.smithAmicrosoft.com, which could be fatal for any communications.
Thus, parity is used... a parity bit is the very first bit of the binary octet. The rules are a bit hazy here, but let's just say that if it's 1, then the result must be even, and if it is 0, then the result is odd. This means that the signal would be:
Character: @ASCII
ASCII Code: 06410
Binary: 110000002
Interference: 000000012
Result:
110000012
Since there is a parity bit, the computer knows that there must have been a transmission error: 65 is not even.
256
The representation of 16 things in 4 bits looks like this:
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Notice a pattern?
Each column is 2x the last one. The right most column alternates 1,0 all the way down the 2nd right column alternates 1,1,0,0 all the way down and so on growing by 2 for each column.
Bits are a Binary Pattern, so base 2 only uses 1's and 0's. To find the data representation used by 8 bits in binary (base 2) we simply take 2 to the power of 8 or 256.
Good luck with future computer science endeavors!
If you consider that there are two possibilities for each byte, then taking two to the eighth power gives you 256 different possibilities. If you mean there are a total of 24-bits, then you can take 2 to the 24th power to get the answer, or you can take 256 to the 3rd power. Either way, that should represent about 16.7 million possibilities.
Using 8 bits per pixel, how can represent 256, or 28 shades
256
for 8 bit synchronous serial transmission total transmitted characters will be 1200/8 and for asynchronous transmission with 1 stop total bit will be (8+1+1=10) i.e. (8 bit + start bit+stop bit) so transmitted characters will be 1200/10
If the characters are 8 bits then you have 4 for them in 32 bits. ASCII is an 7 bit character set but in most programming languages a char is 8 bits.
One character is equals to 8 bits.
10 characters
128 (0-127), 95 printable, 33 control (for 7 bit ascii that is a through back to teletypes.) ISO 8859-1 has 256 characters. From 128 up to 255 we find extra symbols for other languages and regions. Ascci 128 = € for instance and 255 = ÿ. Of course there are many 8-bit standars, windows-1250, for an example.
There are 256 possible values (or characters) in 8 bits.
Theoretically, 64. However, it is rare that 6 bit character sets would be used. Bytes are 8 bit and is the most popular form of information interchange today.
8
128
how many bytes are there in a 64-bit machine? Another Answer: It takes 8 bytes to store a 64 bit number.
210 = 1024, so there are 1024 different bit configurations in a 10-bit code.
8