The iPDS (Intel Personal Development System), released in 1982, is a rare and powerful luggable computer. Powered with an 8085 (and later an 8088) CPU with 64KB RAM (upgradable to a max of 128KB RAM), this CP/M-based machine was NOT used for personal computing! This is a Development System for building systems using the 8085 or 8088 microprocessors, or the 8051 line of microcontrollers.
There are built-in connections on the unit for hooking up various development devices, like an EPROM burner for making new ROM chips, or a powerful ICE (In-Circuit Emulator) adapter that would allow you to use the system in place of a microprocessor or microcontroller. With this, you could directly control the processor and monitor it.
The system, however, was not cheap. The base system with no development hardware was $4500! Relatedly, this is why the system was designed to be portable: it's so expensive, you could really only loan it instead of having one at each engineer's workbench. There is a prototype of a 16-bit version, using the 8086 microprocessor, but it was never manufactured.
