Step 1PCB description

This PCB is set up so that ports B, C, and D each have their own set of 8 LEDs. 
Port A (which only has six lines A0-A5) and Port E (which only has three lines E0-E2) are combined into one set of 9 LEDs.
Each set of LEDs can be enabled or disabled by using a jumper.
Then there are two more jumpers for controlling weather you're using a 5v or >5v power input.

The molex holes lining the sides of the PIC allow one to put wire wrap sockets (cut in half) or headers to be put in. This allows easy connection of all the PIC I/O lines with external devices and the prototype area on the right.

Six of the squares scattered around are for jumpers. One if to let you access the 5v and gnd of the circuit(in case you want to use a logic probe).

There are four jumpers to enable or disable the four sets of LEDs (one LED per i/o line) (one set of 9 LEDs, and three sets of 8 LEDs).

There are another two jumpers (in line with the power input adaptor) which decide if you're using a 5v (doesn't need to be regulated) or >5v power supply (does need to be regulated by a 7805 5v regulator).

The molex holes at the right are big enough and spaced correctly to allow wire wrap sockets to be inserted. You can make test circuits there.

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Here's a Great PIC Intro Book if you need to learn more about PICs.
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