In today's article we are going to explore different aspects related to PDP-9. From its origin and evolution, to its possible implications and applications today. Throughout this journey, we will analyze different approaches and perspectives that will allow us to better understand the role that PDP-9 has played over time and how it continues to impact various areas of society. From historical and cultural aspects, to its relevance in the current panorama, we will delve into a wide range of topics to understand the importance and significance of PDP-9 in the contemporary world. Join us on this journey of discovery and inquiry about PDP-9 and discover its fascinating universe from a multidisciplinary perspective.
Developer | Digital Equipment Corporation |
---|---|
Product family | Programmed Data Processor |
Type | Minicomputer |
Release date | 1966 |
Units sold | 445 |
Media | Paper tape |
Platform | DEC 18-bit |
Mass | 750 pounds (340 kg) |
Predecessor | PDP-7 |
Successor | PDP-15 |
The PDP-9, the fourth of the five 18-bit minicomputers produced by Digital Equipment Corporation, was introduced in 1966.: P.10 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).: 1-7–1-8 The PDP-9/L has a memory cycle time of 1.5 microseconds, and weighs about 900 pounds (410 kg).: 1-1, 15-8
It is DEC's first microprogrammed machine.: 3-16
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.
Both FORTRAN II and FORTRAN IV were implemented for the PDP-9.
MUMPS was originally developed on the PDP-7, and ran on several PDP-9s at the Massachusetts General Hospital.
The PDP-7, of which 120 were sold,: p.8 was described as "highly successful". The PDP-9 sold 445 units. Both have submodels, the PDP-7A[NB 1] and the PDP-9/L,[NB 2] neither of which accounted for a substantial percentage of sales.[NB 3]