From PS3 Developer wiki
- SDK - Software Development Kit.
- Seed - A number (or vector) used to initialize a pseudorandom number generator.
- SELF - Secure ELF.
- SEN - Sony Entertainment Network.
- SEX - Unofficial Target ID of demo PS3s on display in stores.
- SID-Code - Source Identification Code.
- Sixaxis - The original control pad released with the PS3, superseded by the DualShock 3 controller.
- SKU - Stock Keeping Unit.
- SPE - Synergistic Processing Elements. The collective of the SPUs in the Cell BE.
- SPU - Synergistic Processing Unit. A single processing unit within the SPE.
- SPURS - Synergistic Processing Unit Runtime System. Manages SPU's workloads.
- SpursEngine - Synergistic Processing Unit Runtime System Engine. a stream processor produced by Toshiba, powered by four Synergistic Processing Elements (SPE), but without a PPU/PPE
- SRH - Secure Root Hash.
- SRK - Secure Root Key.
- Syscon - System Controller. Responsible for powering up, configuring and initializing the Cell BE, RSX and South Bridge.