The UCSD p-System is a highly portable operating system. It uses the Pascal programming language, and all applications are compiled to interpreted bytecode. This means an application written for the p-System should run on any p-System platform, regardless of the CPU and architecture. However, depending on the use, it could be quite slow.
A number of commercial applications were written for the UCSD p-System, but it lost its portability advantage as the industry standardized on the x86 IBM PC architecture.
Download name | Version | Language | Architecture | File size | Downloads |
---|---|---|---|---|---|
UCSD p-System (bios v1.2) for NEC APC (8-inch) | (bios v1.2) for NEC APC | English | 1.8MB | 0 | |
UCSD p-System for DEC Rainbow (400k SSDD 5.25) | for DEC Rainbow | English | 383.44KB | 0 | |
UCSD p-System for Heath H-8 and H89 (Hard Sector 5.25) | for Heath H-8 and H89 | English | 215.72KB | 0 | |
UCSD p-System for Heath HZ89 90 and H37 H17 controllers (5.25) | for Heath HZ89 90 and H37 H17 controller | English | 210.92KB | 0 | |
UCSD p-System for TI Professional Computer (5.25-320k) | for TI Professional Computer | English | 254.72KB | 0 | |
UCSD p-System for TI-99/4A and Manuals (5.25) | for TI-99/4A | English | 64.61MB | 0 | |
UCSD p-System for TI-994A (5.25-SSSD) (alt disk set) | English | 193.1KB | 0 |