数字信号处理
When the 1980s oil glut caused disruption in the oil and gas industry, TMS shifted focus away from SSDs and onto Digital signal processing products. The previously-designed SAM storage systems were enhanced by adding in a custom designed DSP board. Prior to this added DSP capability, to analyze a signal, a user would have to send the signal to the SAM storage for staging, engage a separate system to perform digital signal processing, then store the result back to the SAM system for analyzing. Adding the DSP processor into the storage system itself meant that the data could be stored, processed, and analyzed all within the SAM system itself, relieving the host systems from processing duties. With this change in product focus, the SAM product line became known for DSP more than for SSD. The company would release more DSP systems under the SAM brand name in the 1990s: The SAM-2000 (1990), the SAM-300/350, and the SAM-450 (1997). The SAM-300, a 512 MB Solid State Disk, is notable as being a reference high-speed data store to optimize and benchmark other bottlenecks in computing systems, such as Network File System (NFS) and Local area networks (LANs), as other storage media at the time were not fast enough to expose these bottlenecks.