Bit-byte

  • May 2020
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A Presentation On Bit And Byte By :Manisha Patel Student – MBA Sem - I

Why Important? 

 



Today we live in very fast era of Information Technology. Time is very important for us. Most of our works are depend on the computer system. So it is not necessary but good if we try to understand that how computer deal with information.

What is Bit?   





Computer operate each letter in binary digit. A bit – binary digit Binary digits are basic unit of information storage. The word bit was introduce by John W Tukey at Bell Laboratory in 1947. A bit has only one value, either 1 (on) or 0 (off).

What is Byte?   





A byte is an ordered collection of bits. 1 byte = 8 bits So it is the basic unit of measurement of information storage in computer. The term byte was introduce by Dr.werner buchholz in July 1956. Early microprocessor, such as Intel 8008 was performed on 4 bits.

Symbol usage Kilobit Megabit Gigabit Terabit Petabit Exabit Zettabit Yottabit

SI 10 106 109 1012 1015 1018 1021 3

1024

Binary 210 =1024 220 =1024*1024 230 240 250 260 270 280

GB # GB ? 







For easier calculation, sometimes the marketing department of the drive manufacturer use SI standard. So sometimes it happen that we have 10GB hard drive, but window show us 9.31GB. Because computer treat it with binary standard. So 10,000,000,000 byte / 1024*1024*1024 will give us 9.31GB.

Different between bit and byte 

 

For example, if you download file from internet and your browser indicate the file transfer rate is KBps then it is said to be kilobytes per second. And if Kbps then it is kilobits per second. For ex: If transfer rate is 7 KBps, then it is 7*8=56 Kbps.

ASCII code 





In American Standard Code for Information Interchange, the letter “A” is expressed as the ASCII code 65. This decimal number is converted into binary number 01000001. These 8 binary digits or 1 byte is known to your computer as letter “A”.

Word-size 



A fix sized group of bits that handled together by the machine is called word size. Modern computers are work on 16, 32 and 64 bits of word-size.

At the End…. 

So now I hope that, we have idea how computer understand….. ----our language-------in its own language----.

Thank You