1 BYTE = 8 bits
friends two days ago i attended a mock interview....everything was well i answered most of the questions asked by the technical panel.
he asked me to prove
1 byte = 8 bits
i couldnot do that?
plz you too try dis...how can we prove this....
he asked me to prove
1 byte = 8 bits
i couldnot do that?
plz you too try dis...how can we prove this....
Replies

andenagaveni24friends two days ago i attended a mock interview....everything was well i answered most of the questions asked by the technical panel.
he asked me to prove
1 byte = 8 bits
i couldnt do it
plz you too try dis...how can we prove this.... 
Kaustubh KatdareThere's nothing to prove. It's like asking to prove 1KG = 1000 grams. The bit, byte system has been adopted because this system can represent unsigned integer from zero through 255 or any signed integer from 128 to 127. The relation 1 <=> 8 is offered because the semiconductors store data in terms of positive (1) and neutral (0) voltages which leads us to using binary system. 2[SUP]3[/SUP] = 8.
CS experts  am I right? 
Kishan Gupta
still i am confuse why 1<=> 8 relation is made, why not 1<=> 4 (2^2 =4) or 1 <=> 16 (2^4 = 16)?The_Big_KThere's nothing to prove. It's like asking to prove 1KG = 1000 grams. The bit, byte system has been adopted because this system can represent unsigned integer from zero through 255 or any signed integer from 128 to 127. The relation 1 <=> 8 is offered because the semiconductors store data in terms of positive (1) and neutral (0) voltages which leads us to using binary system. 2[SUP]3[/SUP] = 8.
CS experts  am I right? 
Kaustubh Katdare
I'm glad that you asked this question. This could be a very good Interview question. The explanation of this can be found on this page: #LinkSnipped#jcksnstill i am confuse why 1<=> 8 relation is made, why not 1<=> 4 (2^2 =4) or 1 <=> 16 (2^4 = 16)?
Quoting from above source 
[SIZE=+2]Bytes[/SIZE]
Go through the link I mentioned above for details ðŸ˜€
Bits are rarely seen alone in computers. They are almost always bundled together into 8bit collections, and these collections are called bytes. Why are there 8 bits in a byte? A similar question is, "Why are there 12 eggs in a dozen?" The 8bit byte is something that people settled on through trial and error over the past 50 years.
With 8 bits in a byte, you can represent 256 values ranging from 0 to 255, as shown here:
0 = 00000000
1 = 00000001
2 = 00000010
...
254 = 11111110
255 = 11111111

Kishan GuptaThank you BIG_K for your reply.
After reading provided page by you, I understand that, computer uses ASCII values for storing data, and ASCII values needed maximum 256 means 2^8 values. So we started to use 1 <=>8 relation. Am I understand correctly? 
Kishan GuptaI am also go through this page
#LinkSnipped#
In that reason for 1B=8b is given that
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.

gobi15ok i understand .in computer it represent a character from any one of 127 ASCII number , so why we go for 8 bit instead of 7 bit ... because 2^7=128 ....128 ascii numbers is there ..7 bit suffient then why go for 8 bit ...pls reply ....

Kishan GuptaI am not sure, but there are many other symbols too (other language then English symbol, some special symbol or keys, etc), that can be represent after 127 symbols. Also we need +,  signs to add in numerical, and that can be represent by 8th bit, and by using this we can represent from 128 to 127 decimal number.

Arjunowhat i knew:
1 Byte = 4 nibbles = 8 bits 
Kishan Gupta
what I knew:Arjunowhat i knew:
1 Byte = 4 nibbles = 8 bits
1 Byte= 2 nibbles = 8 bits.
Because 1 nibbles = 4 bits.
You are reading an archived discussion.
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