Blackboard and other Images
Diagram for the "length of a bit" in-class exercise.
Diagram showing a vampire tap and coaxial Ethernet cable.
Two bits encoded using manchester encodings. The dashed lines
show the preceding transitions, which are only needed if the
preceding bit is equal to this one.
A sequence of alternating bits, as sent in the preamble. Also, checking
that 0x0800 is greater than 1500.
A picture of a vampire tap, and an assembled Ethernet transducer which
uses that tap. A dime is included for size comparison.
A picture of an older Ethernet board, with (at the right) both a
thickwire (coaxial) and a thinwire interface. A dime is included for
size comparison.
