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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.
PDP-1 PDP-6 PDP-7 PDP-8/e PDP-11/40 PDP-12 PDP-15 (partial) PDP-15 graphics terminal with light pen and digitizing tablet. Programmed Data Processor (PDP), referred to by some customers, media and authors as "Programmable Data Processor," [1] [2] [3] is a term used by the Digital Equipment Corporation from 1957 to 1990 for several lines of minicomputers.
Ford's internal code name for the TLCS-12 microprocessor was "PM-11" or "Poor Man's 11" implying it was a stripped down version of the, then popular, Digital Equipment Corporation PDP-11 computer. A PDP-11 was used in a vehicle in the first half of the 1970s for "proof of concept".
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.
A line of personal computers based on the PDP–11, the DEC Professional series, failed commercially, along with other non-PDP–11 PC offerings from DEC. In 1994, DEC [ 14 ] sold the PDP–11 system-software rights to Mentec Inc. , an Irish producer of LSI-11 based boards for Q-Bus and ISA architecture personal computers, and in 1997 ...
The PDP-7 was introduced in December 1964, and about 120 were eventually produced. [25] An upgrade to the Flip Chip led to the R series, which in turn led to the PDP-7A in 1965. [26] The PDP-7 is most famous as the machine for which the Unix operating system was originally written. [27] Unix ran only on DEC systems until the Interdata 8/32. [28]
Internal ECU parameters are accessed via standardized measurement and calibration protocols such as CCP (CAN Calibration Protocol) and XCP (Universal Measurement and Calibration Protocol). CANape was the first measurement and calibration tool to enable access over XCP on CAN [ 1 ] and XCP on FlexRay.
VAX was designed as a successor to the 16-bit PDP-11, one of the most successful minicomputers in history with approximately 600,000 units sold. The system was designed to offer backward compatibility with the PDP-11 while extending the memory to a full 32-bit implementation and adding demand paged virtual memory.