A PC-based application, built in PC-FOCUS, was fielded for beta testing in late 1988 within the 63rd Army Reserve Command and was expanded USAR-wide the following year.
CLAS, also built in PC-FOCUS, was the successor to ULAS, and offered extensive additional data categories beyond that centrally maintained by RC-SIDPERS, including training data, weapon serial number assignment, protective mask tag number assignment, OER/NCOER rating chain, inter alia.
The first was a standalone TACCS (Tactical Army Combat Computer System) and the second was a sort of mainframe/dumb terminal flavor.
As late as 1993, the Army commands at some TDA locations were still using punch cards to run their daily reports.
With the advent of SIPERS-3, the Army moved to using SCO UNIX servers in place of both TACCS and mainframes.