Space Exploration Beta
Network profile
401
reputation
2
6

Ken Shirriff

Interested in computer history and reverse engineering old chips. Currently restoring a Xerox Alto.

Some projects: Wrote the Arduino IRremote library for infrared remotes. Attempted Bitcoin mining on a 55 year old IBM punch card mainframe. Got six symbols added to Unicode including the Bitcoin symbol (₿).

3
answers
0
questions
~7k
people reached
  • San Francisco Bay Area, CA, United States
  • righto.com
  • Member for 1 year, 3 months
  • 20 profile views
  • Last seen Jan 13 at 21:29

Communities (28)

Top network posts

Top tags (10)

Score 25
Posts 1
Posts % 33
Score 25
Posts 1
Score 5
Posts 2
Score 3
Posts 1
Score 3
Posts 1
Score 3
Posts 1
View all tags →

Top posts (3) All Questions Answers | Votes Newest

25 Could the museum Saturn V's be refitted for one more flight? Apr 2 '19
3 Bits per core for the different versions of the Apollo guidance computer core rope memory? Apr 4 '19
2 Apollo-11 AGC core memory has 5 wires per core (rather than 3 or 4) - why? Apr 4 '19

Badges (8)

Gold

—

Silver

2

Rarest

Bronze

6

Rarest