Showing posts with label Museum. Show all posts
Showing posts with label Museum. Show all posts

Mar 23, 2021

Virtual Si Museum /2111/ E.Eng Tools

This is how I was introduced to the engineering. My very fist log rule and my HP-21 scientific calculator (successor of the famous HP-35)


REF:
[1] Slide rule: https://en.wikipedia.org/wiki/Slide_rule
[2] HP-21 scientific calculator: https://en.wikipedia.org/wiki/HP-21

Feb 5, 2021

Virtual Si Museum /2105/ IBM components from 1948 to 1986

Let's visit a partner's museum to discover IBM components from 1948 to 1986. Recently, Ken Shirriff /semiwiki.org/ has received a vintage display box used by IBM to illustrate the progress of computer technology. This display case, created by IBM Germany1 in 1986 included technologies ranging from vacuum tubes and magnetic core memory to IBM’s latest (at the time) memory chips and processor modules. In his semiwiki.org blog post, he describes these items in detail and how they fit into IBM’s history [read mode...]