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The PDP-14 was designed to process Boolean equations, usually expressed as “ladder diagrams” and as such had a programmable read-only program memory. Programs were developed using a PDP-8 then tested using a direct connection to the PDP-14. The PDP-14 was put into a check out mode where instructions were provided by the PDP-8.
RSX-11 is a discontinued family of multi-user real-time operating systems for PDP-11 computers created by Digital Equipment Corporation.In widespread use through the late 1970s and early 1980s, RSX-11 was influential in the development of later operating systems such as VMS and Windows NT.
PDP-11, 16-bit minicomputers 1970-1997; PDP-12, 1969; PDP-14, industrial controller, 1969; PDP-15, 1970; PDP-16, industrial controller, 1971; Project Detail Page on Microsoft Project Server; XACML PDP (policy decision point) Product Detail Page, a page showing the detail of one product on an e-commerce website or in an e-commerce application
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.
RT-11 (Real-time 11) is a discontinued small, low-end, [2] single-user real-time operating system for the full line of Digital Equipment Corporation PDP-11 16-bit computers. RT-11 was first implemented in 1970. It was widely used for real-time computing systems, process control, and data acquisition across all PDP-11s. It was also used for low ...
During the life of the PDP-11, the 16-bit logical address space became an increasing limitation. Various techniques were used to work around it: Later-model PDP-11 processors include memory management to support virtual addressing. The physical address space was extended to 18 or 22 bits, hence allowing up to 256 KB or 4 MB of RAM.
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":
The VAX-11/782, code-named "Atlas", [10] is a dual-processor VAX-11/780 introduced in 1982. Both processors share the same MA780 multiport memory bus and the system operates asymmetrically, with the primary CPU performing all I/O operations and process scheduling with the second, attached processor only used for additional computationally-intensive work.