Browse Items (100 total)

The introduction of the first commercial microprocessors to the market in the early 1970s prompted several companies and individuals to design small, inexpensive, general-purpose computers around these novel semiconductor devices. When the first such…

Founded in 1979, Exceltronix was one of the largest and popular electronics stores of the 1980s in Toronto. From a retail store specializing in electronic components, Exceltronix had expanded into a group of companies (Exceltronix, Multiflex, Toronto…

Historical context:Academic computing in Canada started to develop in the early 1950s. The first commercial digital electronic computer—a Ferranti Mark I (nicknamed FERRUT)—was installed at the University of Toronto in 1952. For several years, FERRUT…

Historical ContextBetween November 1971 and April, 1972, Intel Corp. of Santa Clara, California, introduced its first two microprocessors -- the 4-bit 4004 and the 8-bit 8008. Soon after, the prototypes of the first general purpose computers powered…

Historical Context In 1973, C. Murray Bell incorporated Dynalogic Corporation in Ottawa to design, develop, and manufacture floppy disk drive systems that could be interfaced with a range of computers and programmable calculators. The floppy diskette…

Rack mounted SDK computer system consisting of 2 cages of SDK boards and 2 power supply's. Note attached stating "Property of DY-4 Systems, Product Number FA-85-0159"

The system includes the DY-4 following boards:

STD 102
STD 188
STD 325
STD…

Various DVME computer boards designed by DY 4including:

DVME 102 Single Board Computer
DVME 105 Single Board Microcomputer
DVME 134 32 bit CPU
DVME 201 Eight Serial and Dual-Parallel Port I/O Board
DVME 704 Intelligent Serial I/O Module…

DY-4 DSM 6816 Microcomputer model number DS6816-002, serial number 105424

DY-4 Systems Inc. Challenger I microcomputer model number 953 Chassis, serial number S9538303008.

DATAR project: scans of photographs and front pages of technical documents. For full listing of DATAR-related documents and photographs, consult DATAR Collection.