Desktop Cyber

Desktop Cyber (DtCyber) emulates a range of Control Data Corporation (CDC) Cyber mainframes and peripherals in software.
Background
The CDC Cyber range of mainframe/super-computers was the primary product line of Control Data Corporation (CDC) during the 1970s and 1980s. CDC stopped making Cyber mainframes in 1992.
Once modern desktop systems became powerful enough, some former users of CDC Cyber mainframes tried to create software emulations of these computing dinosaurs.
The first commercial emulator was developed by Infoware (Cocoa Beach, Florida). In 1995 their product called AlphaCyber ended up in the courts because CDC sued them for copyright infringement. A settlement was reached before the case went to trial. The terms of the settlement were kept secret.
The court case frightened many would be emulation developers. A few years later in 2002 several former CDC Cyber users independently developed emulations of CDC Cyber mainframes. Only one emulator has been released.
DtCyber
DtCyber version 1.0 was released by its author Tom Hunter from Perth, Australia as a free and open source software product under a BSD-like license in December 2002. Initially it only worked under 32-bit versions of Microsoft Windows, but later releases added support for most POSIX compliant operating systems with X11 support.
In January 2011 it was released under the GPL Version 3 license and is available via a Subversion source control system server.
Features
*Mainframe types: 60-bit CDC mainframe family members, for example the CDC 6400, Cyber 73, Cyber 173, Cyber 175 and Cyber 170 model 865.
*Peripherals: various disk drives, tape drives, printers, card reader/punch, terminal multiplexers and graphics console.
*Supported CDC operating systems: COS, Kronos, NOS 1, NOS 2, NOS/BE and SCOPE/Hustler.

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