GE-600 series
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| GE-600 series | |
|---|---|
| Name | GE-600 series |
| Developer | General Electric |
| Release | 1960s |
| Family | GE mainframe |
| Type | Mainframe computer |
| Cpu | Custom transistorized logic |
| Memory | Magnetic core |
| Storage | Magnetic drums, disk drives |
| Successor | GE-635 |
GE-600 series The GE-600 series were a line of transistorized mainframe computers produced by General Electric in the 1960s for scientific and commercial applications. They supported time-sharing and batch processing and were notable for their use in research institutions, government laboratories, and commercial data centers. The machines influenced designs at Honeywell, GE Aviation, Bell Labs, MIT, and Stanford Research Institute through hardware, software, and institutional deployments.
History and Development
Development began after General Electric expanded its Electronic Computer Division activities to compete with firms such as IBM, UNIVAC, Control Data Corporation, and Digital Equipment Corporation. Engineering leadership included personnel who previously worked at Raytheon, Burroughs Corporation, and Hewlett-Packard. Early prototypes were demonstrated at conferences hosted by ACM and IEEE. The series emerged as part of a broader Cold War era push involving research contracts from ARPA, Department of Defense, National Science Foundation, and collaborations with Lawrence Livermore National Laboratory, Argonne National Laboratory, and Los Alamos National Laboratory. Marketing and sales targeted clients such as Pratt & Whitney, General Motors, AT&T, and academic sites like Harvard University and University of California, Berkeley.
Architecture and Technical Specifications
The architecture used 36-bit words and a modular arithmetic logic unit influenced by designs at MIT Lincoln Laboratory and SAGE. Memory employed magnetic core planes supplied by vendors including Ampex and Memorex; secondary storage used disk subsystems similar to those from Control Data Corporation and drum units comparable to UNIVAC designs. I/O controllers interfaced with peripherals from DEC, PerkinElmer, Printronix, and IBM peripherals. The instruction set included arithmetic, logical, and control instructions with addressing modes drawing inspiration from EDSAC and Whirlwind I. Cooling, power regulation, and cabinet design incorporated standards used in NASA test facilities and Bell Telephone Laboratories installations.
Models and Variants
Models and configurations were tailored for clients and research programs, with higher-end variants used in projects at MIT, Caltech, and Cornell University. Custom versions served military contractors like Northrop Corporation and aerospace firms such as Lockheed Corporation and Boeing. Maintenance and support involved partnerships with service organizations including Sperry Corporation and Honeywell Bull. Academic variants were installed at institutions including Princeton University, Yale University, Columbia University, and University of Michigan.
Operating System and Software Ecosystem
Operating environments grew from vendor-supplied batch monitors to sophisticated time-sharing systems influenced by work at Project MAC (Massachusetts Institute of Technology) and CTSS developments at MIT. Software tools and compilers were developed in collaboration with universities such as Stanford University and Carnegie Mellon University, drawing on languages like FORTRAN, ALGOL, COBOL, and system-level languages devised at Bell Labs. Networking experiments connected GE machines with ARPANET testbeds and research networks operated by NSFNet participants. Application packages and scientific libraries originated from groups at Argonne National Laboratory, Oak Ridge National Laboratory, and CERN.
Applications and Use Cases
The GE-600 series supported scientific computing workloads in computational physics, numerical weather prediction, and aerospace simulations for projects at NASA centers including NASA Ames Research Center and Jet Propulsion Laboratory. Industrial uses included process control at General Motors, financial modeling for firms like Chase Manhattan Bank and Citibank, and transaction processing for utility companies such as Con Edison. Research deployments facilitated developments in artificial intelligence at MIT AI Lab and Stanford Artificial Intelligence Laboratory, as well as early computer graphics research at Bell Labs and University of Utah.
Legacy and Influence on Computing
The series influenced successors produced by Honeywell after GE's computer division changes and informed product decisions at DEC and IBM. Alumni from GE's team moved to influential roles at Xerox PARC, Sun Microsystems, Microsoft Research, and Google founders' early companies. Concepts tested on GE hardware contributed to standards and projects involving POSIX-era operating systems, distributed computing research at Carnegie Mellon University, and workstation design at Stanford University. The machines are preserved in computing history collections at institutions such as Computer History Museum, Smithsonian Institution, University of Pennsylvania Museum of Archaeology and Anthropology, and specialized archives at MIT Museum.