October 2025
Intermediate to advanced
673 pages
15h 55m
English
In the late 1940s, Grace Hopper wrote her first lines of code. Each line looked something like this1:
1. [We Programmers].
| 521| 53| 2|
Each digit represented a particular hole on a paper tape that looked like this:
Each row of that paper tape was an instruction for the Harvard Mark I to execute. The instructions were very simple—something like “Add Register 10 to Register 12.”
I’ll leave you to imagine just how hard programming was back then.
Within a few years, it became clear that a computer program could ...
Read now
Unlock full access