Frank G. Soltis (born 1940), an American computer scientist, was IBM's Chief Scientist for the System i computers. Based on his PhD research, his pioneering architecture of technology-independent machine interfaces (TIMI) and single-level stores has appeared in these eight generations of IBM hardware: System/38 in 1978, the CISC AS/400 in 1988, the RISC AS/400 in 1995, the web server AS/400e in 1999 (supporting HTTP and TCP/IP), the eServer iSeries, the System i5, the System i, and IBM Power Systems running IBM i (April, 2008).