The IBM PS/2 P70 dates back to 1987, when portable referred to a 20lb computer with a handle, not a laptop. My P70 has a 486 processor, 8meg of RAM, a 120meg ESDI HD, and a Roland MPU-401 card. I use a pattern bases sequencer called Prism which requires a genuine MPU-401 card, the main reason I still have this PC around.