2.2.3 Memory and Packets

• A computer stores data as bits in memory.
• When it wants to send this data to another computer, it copies the bits into the memory of the communications device.
• The communications device sends the bits through the network to the other machine (we'll cover the details of this in the coming week).
• The other machine's communication device places the bits into memory which the other machine can access.
• The tricky bits come in ensuring that both machines interpret the bits correctly.