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IP Addresses (Syntax)

Recall that computers (including routers) connected to the Internet are assigned a unique IP address.

One computer must know the address of another computer before it can communicate with it.

An IP address is stored in four bytes (or 32 bits) which means there are only 2$ ^{32}$ possible addresses

When displayed by an application it is written as 4 decimal numbers, such as: 128.10.2.1

Mostly however, humans use names to specify a computer rather than a numeric address.


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``CMPT 165: Review'' by Tamara Smyth, Computing Science, Simon Fraser University.
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Copyright © 2011-12-05 by Tamara Smyth.
Please email errata, comments, and suggestions to Tamara Smyth<tamaras@cs.sfu.ca>
School of Computing Science,   Simon Fraser University