Altos was a manufacturer of "standard" Z-80 systems. The Altos ACS 8000-2 in my collection was a later product of the company. The chassis is fairly simple with a single board Z-80 based computer running at 4 Mhz, a pair of Shugart drives (mounted upside down!) and 64K of RAM. The "-2" in the name means that this configuration has two single-sided, double-density drives installed.

The computer will run either CP/M (it came with version 2.21 set up for the hardware) or MP/M.

This machine came with a ton of documentation, software and a Televideo terminal (in need of refurbishment). It also came with two copies of WordStar and one of Microsoft Fortran.