The PDP-15 was the fifth and last of the 18-bit minicomputers produced by Digital Equipment Corporation. The PDP-1 was first delivered in December 1959 [3]: P.4 and the first PDP-15 was delivered in February 1970. [4] . More than 400 of these successors to the PDP-9 (and 9/L) were ordered within the first eight months. [3]: p.16.

The PDP-15 was DEC 's last 18-bit computer, and the only one implemented using integrated circuits. Its principal intended use was for real-time systems. A variety of models were offered, from the PDP-15/10 (with 4K words of main memory), to the PDP-15/40 (with 24K words, and two disks). It was a load-store architecture, with a single accumulator.

pdp-15 DEC's final 18-bit machine (1970). It is the only 18-bit machine constructed from TTL integrated circuits rather than discrete transistors, and, like every DEC 18-bit system (except mandatory on the PDP-1, absent on the PDP-4) has an optional integrated vector graphics terminal, DEC's first improvement on its early-designed 34n where n ...

The pdp-15 was an 18-bit machine built in the early 1970s as a successor to the pdp-9 and pdp-7, themselves direct descendents, in the 18-bit line, of the pdp-1, DECs first system. They were typically used in data acquisition and analysis, engineering, early graphics systems, and experiment and process control.

The PDP-15 was DIGITAL's last 18-bit computer system and the only one implemented with integrated circuits. The new machine was faster and less expensive than its predecessors and had the added sophistication of a separate I/O processor to the CPU. Over 400 of these machines were ordered in the first eight months of production.

dec pdp-15 This Digital Equipment Corporation PDP- 15 computer installation is very similar to the one we used at the Helsinki University of Technology in the ' 70 s. The vector graphic display console on the left is a VT 04 with a light pen and a digitizing tablet, on its right side is a Teletype 28 KSR terminal, and in the background the 18 ...

DEC's final 18-bit machine. It was their only 18-bit machine constructed from TTL integrated circuits rather than discrete transistors. Later versions of the system were referred to as the "XVM" family.

The PDP-1 was the first of the DEC 18 bit computer series, consisting of PDP-1, PDP-4, PDP-7, PDP-9, PDP-15. see Architecture and Timeline at PDP-1. Instruction List, Page 1, 2, 3, 4, 5, 6, 7, 8

Shots of the PDP-15, with and without models. Some shots are in an office setting. Also shown is a Graphic-15 system. Other equipment shown are the TU10, TU55, TU56, LA30, LA36, VT05, RK05, and Unichannel-15.

Introduction 1-1 PDP-15 Highlights 1-1 Summary of PDP-15 Characteristics 1-2 2 PDP-IS System Organization Central Processor 2-1 Memory 2-1 I/O Processor 2-1 System Peripherals 2-3