IBM Personal Computer Interactive Executive

IBM Personal Computer Interactive Executive © 1984 IBM Corp.

The IBM Personal Computer Interactive Executive (PC/IX) is an operating environment derived from the UNIX Time Sharing System. It includes several enhancements designed specifically for the IBM Personal Computer.

PC/IX is a single-user multitasking system. It allows a single user to run several tasks at the same time, e.g., printing one file while editing another. Several users may also utilize the IBM Personal Computer at different times, with full control to prevent unauthorized access to or usage of files by one user that belong to another user. PC/IX provides a flexible working environment and a uniform set of tools for program development, document preparation, and text processing.