h0 + h1x + h2x2 ..... 1xk
=
1 hk hk-1 ...... h0 0 0 0
0 1 hk hk-1 ...... h0 0 0
0 0 1 hk hk-1 ...... h0 0
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The single parity check uses one redundant bit for the whole data unit. In a two dimensional parity check, original data bits are organized in a table of rows and columns. The parity bit is then calculated for each column and each row.
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A computer word is NOT 4 bits.In computing terms the base unit is a "bit" which can be set to "0" or "1"Then a group of 4 bits is called a "nibble"2 nibbles or 8 bits is called a "bite"next comes a computer "word" which can be 16, 32 or 64 bits, depending on the width of the computer's registers.A parity bit is used as the simplest form of error detecting code, a parity bit, or check bit, is a bit ADDED to any string of binary code to ensure that the total number of 1-bits in the string is even or odd.
In the "menu" bar at the top of the screen, select "Insert"; then select "symbol"; under the "Font" box, select "Wingdings 2"; in the matrix select the "check mark"; then select "Select" at the bottom of the box and then select "Close" at the bottom of the box.
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