# Mark Weiser

Canonical: https://www.lazyweb.com/authors/mark-weiser
Updated: 2026-09-20

Xerox PARC chief scientist and originator of ubiquitous computing.

Mark Weiser was chief scientist at Xerox PARC and originated the ubiquitous-computing frame. His work explains why the best assistant may recede into ordinary life instead of demanding another screen.

Source: https://graphics.stanford.edu/courses/cs428-03-spring/Papers/readings/General/Weiser_SciAm91.htm

Biography and source archive come from Weiser's public archive; portrait is the linked Wikimedia Commons file. Checked September 19, 2026.

## Referenced in 101

- [The Computer for the 21st Century](https://graphics.stanford.edu/courses/cs428-03-spring/Papers/readings/General/Weiser_SciAm91.htm) ([Personal assistants 101](https://www.lazyweb.com/101/personal-assistants)) — The most profound technologies disappear into ordinary activity; an assistant succeeds when it reduces attention demands instead of becoming another destination.

## About this page

This is a Lazyweb reference profile, not an account, endorsement or claim that Mark Weiser contributed to Lazyweb. The profile identifies an author, editor, maintainer, speaker or source publication connected to the linked work; it is not necessarily the article byline. Summaries are Lazyweb's; the linked work remains the source of truth.