#
DIFF.BLOG
New
Following
Discover
Jobs
More
Top Writers
Suggest a blog
Upvotes plugin
Report bug
Contact
About
Privacy
Sign up
The home for great developer writing.
We surface the best developer writing from thousands of independent blogs, updated daily.
Join Diff.blog
TOPICS
Powering up a module from the IBM 604: an electronic calculator from 1948
·
Adafruit Industries Blog
·
June 11, 2026, 3:21 p.m.
computers
history
Vintage Computing
IBM
History of Computing
vintage hardware
ken shirriff
IBM 604
Summary
In this blog post, Ken Shirriff explores the historical significance and hardware of the IBM 604 electronic calculator from 1948, illustrating the shift from electromechanical systems to early computers in a compelling narrative.
Read full post on blog.adafruit.com →
MORE POSTS LIKE THIS
Energizing a vacuum-tube flip-flop module from a 1948 IBM system
Adafruit Industries Blog ·
Aug 18, 2026
components & parts
computers
Plus Post: Gemini Emulator Board
John Paul Wohlscheid ·
Sep 30, 2026
emulation
History of Computing
SynthSkool Intros Degauss Vintage Synth Sample Instrument
Synthtopia ·
Sep 28, 2026
Virtual Instruments
software synthesizers
On the NSA’s Supercomputer from the 1960s
Bruce Schneier ·
Sep 15, 2026
History of Computing
history of cryptography
FDES: Fast DES in LMI Lambda Microcode
Funcall Blogspot ·
Sep 13, 2026
cadr
DES
Key symbols we lost to time, pt. 1: The PC side
Unsung ·
Sep 11, 2026
user-interface-design
History of Computing
Discover more posts →
AUTHOR
Advertise
Sponsor diff.blog
Put your product in front of developers who read and write about their craft. One exclusive sponsor at a time.
Become a sponsor →
RECENT POSTS FROM THE AUTHOR
Choose how you want to continue.
Continue with GitHub
Continue with Google
By continuing, you agree to our
Privacy Policy
.