Not having touched a PIC for about 18 months, and having been offered some freelance work programming a new PIC device, I needed a quick reintroduction to their architecture, software and little quirks. I ordered a couple of 16F84 devices and looked around on the web for a simple programmer.
The simplest one I could find was a serial port programmer: JDMprog. It uses a small number of low-cost components, and is unique in that it doesn’t need an external power supply, getting its power from the serial port.
Simplest PIC programmer - [Link]