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PDP-9
The PDP-9, the fourth of the five 18-bit minicomputers produced by Digital Equipment Corporation, was introduced in 1966. A total of 445 PDP-9 systems were produced, of which 40 were the compact, low-cost PDP-9/L units.
The 18-bit PDP systems preceding the PDP-9 are the PDP-1, PDP-4 and PDP-7. Its successor is the PDP-15.
The PDP-9, which is "two metres wide and about 75cm deep," is approximately twice the speed of the PDP-7. It was built using discrete transistors, and has an optional integrated vector graphics terminal. The PDP-9 has a memory cycle time of 1 microsecond, and weighs about 750 pounds (340 kg). The PDP-9/L has a memory cycle time of 1.5 microseconds, and weighs about 900 pounds (410 kg).
It is DEC's first microprogrammed machine.
A typical configuration included:
Among the improvements of the PDP-9 over its PDP-7 predecessor are:
User/university-based research projects for extending the PDP-9 include:
The system came with an OS that functions as single-user keyboard monitor, called ADSS (ADvanced Software System). DECsys provided an interactive, single-user, program development environment for Fortran and assembly language programs.
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PDP-9 AI simulator
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PDP-9
The PDP-9, the fourth of the five 18-bit minicomputers produced by Digital Equipment Corporation, was introduced in 1966. A total of 445 PDP-9 systems were produced, of which 40 were the compact, low-cost PDP-9/L units.
The 18-bit PDP systems preceding the PDP-9 are the PDP-1, PDP-4 and PDP-7. Its successor is the PDP-15.
The PDP-9, which is "two metres wide and about 75cm deep," is approximately twice the speed of the PDP-7. It was built using discrete transistors, and has an optional integrated vector graphics terminal. The PDP-9 has a memory cycle time of 1 microsecond, and weighs about 750 pounds (340 kg). The PDP-9/L has a memory cycle time of 1.5 microseconds, and weighs about 900 pounds (410 kg).
It is DEC's first microprogrammed machine.
A typical configuration included:
Among the improvements of the PDP-9 over its PDP-7 predecessor are:
User/university-based research projects for extending the PDP-9 include:
The system came with an OS that functions as single-user keyboard monitor, called ADSS (ADvanced Software System). DECsys provided an interactive, single-user, program development environment for Fortran and assembly language programs.