DATA LINES,BITS,NIBBLES,BYTES,WORDS,BINARY AND HEX

DATA LINES,BITS,NIBBLES,BYTES,WORDS,BINARY AND HEX
Various information inside a computer or on board used is exchanged by using metallic conductors called data lines and group of data.
0 byte value-00000000
Non zero byte-01100010
In C a byte is called a character and is abbreviated char
BIT                              D7       D6     D5        D4        D3        D2       D1       D0
BASE EXPONENT 2^7    2^6   2^5    2^4       2^3     2^2     2^1    2^0
WEIGHT                 128      64       32       16          8          4           2          1
To show a number in hexadecimal in the C language,prefix it with 0x
9B= (9*16)+(11*16 ^0)=155
It would be represent ed as  :   0x9B    or     0x9b
The following shows the byte table again but this time with the weight also expressed in hexadecimal notation,as often seen in C operations.
BIT                                 D7           D6          D5         D4           D3         D2        D1      D0
BASE EXPONENT    2^7        2^6       2^5       2^4         2^3     2^2       2^1  2^0
WEIGHT                     128          64         32          16             8           4            2        1
HEX WEIGHT            0x80     0x40   0x20    0x10        0x08    0x04 0x02 0x01
D8 0x0100
D9 0x0200
D10 0x0400
D11 0x0800
D12 0x1000
D13 0x2000
D14 0x4000
D15 0x8000
For example the decimal number 19070 can be represented as the hexadecimal number 0x4A7E