| SRS2000 Speech Recognition System | A speech recognition system that captures voiceprints, matches spoken words against stored samples, and displays a real-time frequency spectrum—all driven by machine code called from BASIC. | Timex/Sinclair 2068 |
| Z-XLR8 | A two-part cassette accelerator system that calibrates tape timing by sampling waveforms in RAM, then patches machine code parameters for high-speed data transfer. | Timex/Sinclair 1000 |
| ZXLR8 | A machine code cassette accelerator that pushes tape storage 6–10x faster than normal, with an interactive BASIC loader that patches timing and calibration values before handing off to the resident routine. | Timex/Sinclair 1000 |
