Goes back to the early days of digital photography and trying to define a pixel and various shades of gray.
The word "bit" is an acronym for "BInary digiT" and is used to describe the number of shades of grey or colour that a pixel can represent. Bit depths are based on an exponential system. A 1-bit image is made up of pixels having only two states i.e. on or off, white or black. A 2-bit image has 4 tones (22) and a 3-bit image has 8 tones (23), a 8-bit image has 256 (28) tones and a 16-bit image has 65535 (216) tones.
A byte contains 8 bits and allows you to count from 0 to 255 because there are 256 different ways you can arrange 8 bits by turning each one on/off individually. Most images that you see on the web such as JPEG images are stored by assigning RGB values to each pixel in the image (brightness/intensity values for red, green, and blue) and most images use 8 bits for each colour channel. 8 bits for red, 8 bits for green, and 8 bits for blue give you 24 bits and allow you values of 0-255 for each primary colour. Starting with 0,0,0 (black) and moving through all possible combinations up to 255,255,255 (white) gives us more than 16 million possible colours in a 24 bit image.
A lesser known measure is the word. A word contains 16 bits and allows you to count from 0 to 65535. While a byte only allows values ranging from 0 to 255, two bytes together that form 16 bits allow you to have much greater precision. Allowing values from 0 to 65535 for each of the red, green, and blue primary colours for each pixel means that you can address a total of over 280 trillion colours! A 48 bit image still covers the exact same colour range as a 24 bit image: 0,0,0 black to 65535,65535,65535 white and everything in between. The difference is that you can define the range with many more steps to make much finer gradients.
plrr
2006-10-30 03:26:38
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answer #1
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answered by Angry C 7
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binary data is the one which contains of only two diits to represent the information
they used the convention of 8 bits =bytes
may be because three digits combine to form a byte
and in binary data u will need 2^3 =8 bits
2006-10-30 23:54:15
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answer #2
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answered by sweetboy 3
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A bit is binary data. All characters that the computer understands are represented in binary data. This is 01101011 by example, this is one byte. A bit can only be a 1 or a 0.
2006-10-30 03:14:46
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answer #3
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answered by chuck g 5
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Why eight?
The earliest computers could only send 8 bits at a time, it was only natural to start writing code in sets of 8 bits. This came to be called a byte.
A bit is represented with a lowercase "b," whereas a byte is represented with an uppercase "b" (B). So Kb is kilobits, and KB is kilobytes. A kilobyte is eight times larger than a kilobit.
The smallest amount of transfer is one bit. It holds the value of a 1, or a 0. (Binary coding). Eight of these 1's and zero's are called a byte.
2006-10-30 20:07:47
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answer #4
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answered by Upal 4
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In all electronics everything is based on the intervals of 2 (aka Boolean logic). For example right, wrong, yes, no, on, off. It always consistently exists in two extremes, so there’s no gray area. Sooooo with binary you’re dealing with equations like 0,2,4,6,8, and so on. 8 bits = 1 byte. Binary data represents the same base-two numeral system. Also if you want to get even further into it, the data consist of textual info (alphanumeric text) called ASCII.
Boyclue
2006-10-30 03:51:21
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answer #5
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answered by BoYcLuE 2
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binary is a logic symbol that represents the state of an electrical component. in the world of electronics there are only two logic symbols that is logic 1 and logic 0 that is on and off but this values deffer when it comes it logics like positive logic or negative logic in which positive logic on is represented by 1 whole off is represented by a 0 but in the negative logic the inverse is applied.
Now computers and all elctronic devices use digital signals to handle data and processes. when a computer processes data it handles it as electrical signals fluctuating from on to off on off ....... so computers handle all their data as 000's and 111's
also images are inform of 0.1 dark bright maped accross a plane.
I think byte was derived because computers could handle 8 bits at any one time so sa to its name byte for bite or there must be another I am not quite sure.
2006-10-30 04:05:41
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answer #6
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answered by mich01 3
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I don't know why use this name.
It's the best form of data processing.
Binary data are 0 and 1
0 = off
1 = on
Example: 01110011 = 8 bits = 1 byte
2006-10-30 03:14:36
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answer #7
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answered by Rafael MM'S 2
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binary data consists of 1's & 0's which can be understand by a sys
2006-11-02 23:50:56
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answer #8
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answered by kalpana m 2
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Because there is 8 bits in a byte. Binary in the simple terms is computer language.
http://en.wikipedia.org/wiki/Binary_numeral_system
http://computer.howstuffworks.com/bytes.htm
http://www.webopedia.com/TERM/B/binary.html
2006-10-30 03:15:43
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answer #9
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answered by Geek Girl 5
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You have mangled the question in at least three critical places.
2016-03-28 01:39:44
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answer #10
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answered by ? 4
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