In IP address 131.127.3.22, to convert the first octet (131) to a binary number:
nOn Windows 2000, click Start,
point to Programs, point
to Accessories, then click Calculator
nClick View,
then click Scientific (make sure Dec
option button is selected)
nType 131, then click Bin option button
The binary equivalent of number 131, 10000011, appears in the display window