VideoStream, Inc., Vice President of Product Development.
Pioneering next generation interactive television technology for broadband systems.
Pantaray, Inc., President.
Developed a range of products, including the CDTV (Commodore's consumer based CD-ROM system), the VISCorp
Cable Box Operating System, CD-ROM simulation, premastering, and optimization tools, one of the first
non-linear digital video editors, and the first motion video from CD-ROM (CDXL).
American Multimedia, President.
A new venture directed toward introducing CD-ROM multimedia into employee training departments for the top
corporations in the US. We focused on technology to provide simple, TV-style, motion video user interfaces
from CD-ROM.
Sassenrath Research, President.
Programming and consulting company. Wrote the main development tools for the Epyx Handy (Atari Lynx
hand-held game machine), created Amiga Logo, wrote the book: "Guru's Guide to the Commodore Amiga", and
other code for Electronic Arts, VPL, Commodore, ...
Apple Computer Advanced Technology Group, Technology Manager.
Headed the development of next generation object-oriented operating systems and program execution
environments. (Cray Supercomputer)
Commodore Amiga, Inc., Manager of Operating Systems.
Designed and implemented one of the first Multi-tasking Operating Systems for personal computers. The
design included pre-emptive multi-tasking, message-based communications, dynamically loading libraries and
devices, interrupt system.
Next Generations Systems, President.
Designed and co-programmed the NGS Forth programming system for the IBM PC.
Hewlett Packard, Computer Group, Software Engineer.
Developed one of the first graphically oriented user-interfaces (1982) utilizing a bit mapped display, icons,
fonts, a mouse, and remote procedure calls (RPC). Also responsible for the development of HP3000 operating
systems (MPE).
National Science Foundation.
Upper atmospheric physics research scientist at the South Pole, Antarctica.
University of California, Davis, Behavioral Biology Department.
Wrote programs to model and simulate neurons, statistical analysis of behavior.
KVIQ (ABC) Television. Technical director.
As part of commercial and news production departments, including live broadcast.
KEET (PBS) Television.
Program switcher and cameraman.