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 |
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(bios v1.2) for NEC APC | English |
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1.8MB | 0 |
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for DEC Rainbow | English |
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383.44KB | 0 |
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for Heath H-8 and H89 | English |
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215.72KB | 1 |
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for Heath HZ89 90 and H37 H17 controller | English |
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210.92KB | 1 |
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for TI Professional Computer | English |
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254.72KB | 1 |
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for TI-99/4A | English |
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64.61MB | 1 |
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English |
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193.1KB | 0 |