Technical Design Labs (TDL), founded 1976 by Carl Galletti and Roger Amidon, was an early producer of
personal computer
A personal computer (PC) is a multi-purpose microcomputer whose size, capabilities, and price make it feasible for individual use. Personal computers are intended to be operated directly by an end user, rather than by a computer expert or tec ...
s. TDL was based in Princeton, New Jersey, USA in the 1970s and early 1980s.
[TDL Makes Four Offerings]
Page 55, 1977-11-21, Computerworld
The company was later (1978) renamed Xitan, in honor of its primary product.
In 1979, Neil Colvin formed what was then called
Phoenix Software Associates after his prior employer, Xitan, went out of business. Neil hired Dave Hirschman, a former Xitan employee.
In 1979 Carl Galletti and Roger Amidon had started a new business called Computer Design Labs that acquired the rights to all TDL software.
Products
The company's Xitan had an S-100 bus and a Z-80-based CPU came in two configurations: the base Alpha 1 model and the Alpha 2.
Other products from TDL for the Xitan and S-100 Z80-based computer systems:
*
Zapple Monitor
The Zapple Monitor was a firmware-based product developed by Roger Amidon at Technical Design Laboratories (also known as ''TDL''). TDL was based in Princeton, New Jersey, USA in the 1970s and early 1980s.Epson QX-10
The Epson QX-10 is a microcomputer running CP/M or TPM-III (CP/M-80 compatible) which was introduced in 1983. It was based on a Zilog Z80 microprocessor, running at 4 MHz, provided up to 256 KB of RAM organized in four switchable banks, a ...
Inside Track
By John C. Dvorack, Page 80, InfoWorld, 29 Oct 1984, ''...from his days at the defunct S-100 firm Technical Design Labs: Roger Amidon and ... Amidon apparently had much to do with the QX-10's hardware design...''
References
{{reflist, 30em
External links
Product brochure
Herb's S-100 Stuff Preserving S-100 for decades
Technical Design Labs (TDL) (Princeton, N.J.)
Classic Tech
Defunct computer hardware companies
Personal computers
Defunct computer companies of the United States