The HP 64000 Logic Development System, introduced 17 September 1979, is a tool for developing hardware and software for products based on commercial microprocessors from a variety of manufacturers. The systems assisted software development with assemblers and compilers for Pascal and C, provided hardware for in-circuit emulation of processors and memory, had debugging tools including logic analysis hardware, and a programmable read-only memory (PROM) chip programmer. A wide variety of optional cards and software were available tailored to particular microprocessors. When introduced the HP 64000 had two distinguishing characteristics. First, unlike most microprocessor development systems of the day, such as the Intel Intellec and Motorola EXORciser, it was not dedicated to a particular manu