PDP-11

interrupts

The PDP–11 supports hardware interrupts at four priority levels. Interrupts are serviced by software service routines, which could specify whether they themselves could be interrupted (achieving interrupt nesting).

mention

The Early History of Usenet, Part I: Prologue (cs.columbia.edu) November 2019 is, as best I can recall, the 40th anniversary of the conception of Usenet. (What’s Usenet? The Wikipedia article is ok but not perfect.) I should have written a proper paper; instead, there will (probably) be an irregular series of blog posts. I’ll do Part I of N tonight.

path on GitHub

https://github.com/davepinch/pinchy.cc/blob/master/content/topics/computers/systems/pdp-11/pdp-11.md

random

The era saw the development of sexual reproduction, which greatly increased the complexity of life to come and signified the start of development of true multicellular organisms.

tags

microcomputer

Wikipedia

PDP-11 (Wikipedia) The PDP–11 is a series of 16-bit minicomputers originally sold by Digital Equipment Corporation (DEC) from 1970 into the late 1990s, one of a set of products in the Programmed Data Processor (PDP) series. In total, around 600,000 PDP-11s of all models were sold, making it one of DEC’s most successful product lines. The PDP-11 is considered by some experts to be the most popular minicomputer.