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The Gateway AnyKey is a programmable computer keyboard that was sold exclusively [2] by Gateway 2000, Inc., as an option for some of their desktop computers.Introduced in the spring of 1991, [3] the keyboard was manufactured in at least five known versions and incarnations by Tucson, Arizona–based Maxi Switch, Inc., a subsidiary of the Lite-On Technology Corporation. [4]
Gary Kildall, who developed CP/M and MP/M, based much of the design of its file structure and command processor on operating systems from Digital Equipment, such as RSTS/E for the PDP-11. Besides accessing files on a floppy disk , the PIP command in CP/M could also transfer data to and from the following "special files":
Released in 1980, TSX-Plus was the successor to TSX, released in 1976. [2] The system was popular in the 1980s. The last version of TSX-Plus had TCP/IP support.. S&H wrote the original TSX because "Spending $25K on a computer that could only support one user bugged" (founder Harry Sanders); the outcome was the initial four-user TSX in 1976.
Bit operations with I/O same as 13-bit, but 64-byte range 1 0 0 opc bit address Bit operations with memory same as 13-bit, but 64-byte range 1 0 1 opcode literal Literal operations same as 13-bit, plus CNEQSN 1: 0: 1: 0: 1: 1: k: CNEQSN A,k — C: Z: Compute A − k, then skip if non-zero 1 1 c k Control transfers same as 13-bit 1 13 1 2 1 1 1 ...
RT-11 ran on all members of the DEC PDP-11 family, both Q-Bus- and Unibus-based, from the PDP-11/05 (its first target, in 1970 (note that the PDP-11/05 was released 1972, so this probably was a PDP-11/20)), to the final PDP-11 implementations (PDP-11/93 and /94). In addition, it ran on the Professional Series and the PDT-11 "Programmed Data ...
In 1981, support for separate instruction and data space for users with Unibus machines (PDP-11/44, PDP-11/45, PDP-11/55 and PDP-11/70) provided an extension to the memory constraints of an individual program. Compiling programs to use separate instruction and data space would soon give a program up to 64 KB for instructions, and up to 64 KB ...
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Because the bus actually contains a data path that is two bytes wide, address bit [0] is subject to special interpretation and data on the bus has to travel in the correct byte lanes. A strict Master-Slave relationship means that at any point in time, only one device can be the Master of the Q-bus.