| Abbreviation | Definition |
|---|---|
| PSLE | Product Sight Lifecycle Environment |
| PSNI | Professional Software for Nurses Inc |
| PSOS | Portable Software on Silicon |
| PSP | Paint Shop Pro |
| PSPB | Public Service Programming Board |
| PSR | PHP Standart Recommendation |
| PSS | Process Server Software |
| PSSC | PHP Sysadmin Script Collection |
| PSSC | Products and Solutions Support Center (IBM) |
| PSSD | Problem Solving Software Development |
| PSSD | Process Software Solutions Department |
| PSSE | Power System Simulator for Engineering |
| pssh | parallel-ssh |
| PSSI | Professional Software Solutions Inc |
| PSSL | Professional Software Solutions Limited |
| PSSM | Parallel-Split Shadow Map |
| PSST | Photonics Simulation Software For Teaching |
| PSST | Plato Support Services Tip |
| PSST | Professional Systems Software Technology |
| PST | Product Support Tool |