Wang 2200
| Industry | Computer hardware |
|---|---|
| Founded | January 1, 1951 |
| Headquarters | United States |
| Products | Wang 2200 minicomputer |
The Wang 2200 was an integrated minicomputer introduced by Wang Laboratories in May 1973. Unlike other desktop systems such as the HP 9830, it incorporated a built-in cathode-ray tube (CRT) display, an embedded computer-controlled cassette tape storage unit, and a keyboard. Programmed via microcode to launch BASIC upon startup, it foreshadowed the design of subsequent home computers. Around 65,000 units were distributed, finding a strong foothold among small to medium enterprises worldwide.
The 2200 lineup evolved from a standalone desktop machine into configurations capable of supporting up to 16 workstations by utilizing commercial disk technologies that emerged during the late 1970s and early 1980s. Disk subsystems could interconnect as many as 15 computers, facilitating clusters with as many as 240 workstations.
In contrast to Wang’s VS and OIS product lines, the 2200 depended on value-added resellers (VARs) for both sales and system customization. A significant implementation involved multiple 2200 units developed in partnership with Hawaii- and Hong Kong-based Algorithms, Inc., which provided paging services covering a substantial portion of Hong Kong’s market during the early 1980s.
Initial 2200 Versions
The earliest models of the 2200 series, launched in April 1973, were the 2200A and 2200B. The B variant offered additional microcode instructions within Wang BASIC, primarily focused on data manipulation to simplify database development. Subsequently, the C model introduced several new commands, including rudimentary error handling capabilities.
Following these were the S and T models, which incorporated more advanced large-scale integration technology for their CPUs. The S model brought in string-to-number conversion commands, whereas the T model added matrix mathematics functions alongside improved input/output features. Both models transitioned from external to internal power supplies.
The E and F versions retained similar functionalities to the S and T but featured a redesigned CPU housed within a terminal-style chassis. They also debuted a revamped input/output subsystem that rendered previous I/O cards incompatible with these models.
Subsequent "2600" Series
By 1974, Wang was executing a complete CPU redesign that resulted in a processor with an entirely new machine code. This change was seamless for users since BASIC was implemented through microcode rather than direct machine language, allowing existing software to operate without modification.
This redesigned system was unveiled at the Westcon exhibition in September 1976 and began shipping in 1977 under the name 2200VP. Its BASIC-2 version introduced disk access features such as "Automatic File Cataloging," which enabled filename-based retrieval, and "Absolute Sector Addressing," allowing customized database configurations. It supported up to sixteen files open simultaneously. Additional capabilities expanded device compatibility, including enhanced support for telecommunications equipment.
The Wang 2200MVP provided multi-user functionality and claimed support for high-speed printers operating at rates up to 600 lines per minute, IBM diskette drives, 9-Track magnetic tape, telecommunications devices, and specialized instrument controllers.
In the early 1980s, the VP series was updated to a single-chip design using VLSI technology called the "Micro VP," which preserved backward compatibility while simplifying hardware complexity.
386-based models
The final iterations of the 2200 series, launched in July 1989 as the 2200 CS/386, incorporated a 16 MHz Intel 80386 processor with the 2200's microcode implemented atop it. This architecture was consolidated onto a single plug-in card that replaced the VP-style CPU within the existing chassis, maintaining compatibility with all current peripherals. BASIC was housed in 256 KB of static RAM, loaded from disk, and employed an incremental compiler instead of a traditional interpreter.
By March 1991, the CS/386 Turbo version enhanced the CPU frequency to 32 MHz.
Soviet replica
During the 1970s, Wang 2200 systems were extensively utilized by Gosplan and Goskomstat, two principal Soviet planning and statistical bodies. Due to apprehensions about potential security vulnerabilities in Western equipment, a fully binary-compatible clone—known as the —was reverse engineered and developed.
Initiated in 1978, production of this clone began in 1980, preceding any CoCom embargoes linked to the Afghan conflict. Soviet accounts indicate that Gosplan and Goskomstat favored original Wang machines; clones predominantly supported other research institutions and industrial sectors. The Iskra-226 model featured advanced capabilities tailored for industrial automation, such as dual high-speed RS-232 ports, IEEE-488 device control, and CAMAC crate control hardware. Subsequently, a streamlined Unix port was created for this platform.
Conclusion of production
Although eclipsed by the Wang VS series, the 2200 continued as an economical yet largely underappreciated alternative. In the late 1980s, Wang revived the lineup with the 2200 CS, which included maintenance packages offered at reduced rates compared to earlier service contracts. This release also introduced upgraded disk drives and peripherals, prompting most current users to transition to these newer units.
Following this phase, Wang halted development of new 2200-series hardware but maintained support services; by 1997, roughly two hundred systems were still receiving maintenance globally.
Wang 2200 Basic-2 programs can now be executed on PC and Unix platforms through compilers and runtime environments marketed by Niakwa. These contemporary systems deliver substantially increased memory and storage resources, allowing applications to perform far more efficiently than on original hardware.
External links
- Wang 2200 Extensive resources about the Wang 2200
- Wang 2200 Emulator Working emulator for the Wang 2200 system
- Wang 2200 on YouTube Video showcasing the Wang 2200 in operation