An operating system for PCs developed originally by Microsoft Corporation and IBM, but sold and managed solely by IBM. OS/2 is compatible with DOS and Windows, which means that it can run all DOS and Windows programs. However, programs written specifically to run under OS/2 will not run under DOS or Windows.
Since its introduction in the late 80s, OS/2 has traveled a particularly rocky road. The first releases were hampered by a number of technical and marketing problems. Then Microsoft abandoned the project in favor of its own operating system solution, Microsoft Windows. That break spawned a feud between the two computer giants that is still being played out in many arenas.
OS/400 is the operating system IBM uses for their AS/400 (now called iSeries) computers. OS/400 incorporates support for IBM’s Linux implementation, Windows, and ported UNIX applications through OS/400 PASE, and OS/400 applications.
A real-time, multi-user, multitasking operating system developed by Microware Systems Corporation. Originally, OS-9 was a joint effort between Microware and Motorola. In the 1980’s, Microware ported OS-9 to the Motorola 680×0 family of microprocessors, creating OS-9/68000, which is used in a variety of industrial and commercial arenas, including Philips’ CD-I and, most recently, WebTV boxes.
Short for Optical Time Domain Reflectometer, an instrument that analyzes the light loss in an optical fiber in optical network trouble shooting. An OTDR injects a short, intense laser pulse into the optical fiber and measures the backscatter and reflection of light as a function of time. The reflected light characteristics are analyzed to determine […]
Short for MIT Object Tcl, OTcl is an extension to Tcl/Tk for object-oriented programming. OTcl was created by David Wetherall as part of the VUsystem project at MIT.
Short for Organizational Unique Identifier, the first 24 bits of a MAC address for a network-connected device, which indicate the specific vendor for that device. The IEEE assigns OUIs to vendors. (The last 24 bits of the MAC address are the device��s unique serial number, assigned to the device by the manufacturer.) The OUI sometimes […]