Skip to content

The map Courses The Lab History Review

Code Quest

Code Quest is a free, open school of computing, from the first switch to processors, compilers and algorithms, in three languages.

Part of a family of learning platforms with Math Quest, Physics Quest, AI Gate and Qubit Quest.

Stages

Sparks
Builders
Coders
Engineers
Architects
For everyone

Platform

Set my level
The map
The Lab
History
Review
My progress

© 2026 Code Quest01000011 01010001 · 2⁶⁴ = 18 446 744 073 709 551 616

The Story of Computing/Lesson 2 of 3

For everyone

💡

The electronic age

Relays, vacuum tubes, transistors, chips: each generation of switch made computers smaller, faster and cheaper.

12 min 55 XP

Step 1 of 10

The whole history of computer hardware is the search for a better switch. The logic never changed: Boole's AND, OR and NOT from 1854. What changed was what the switch was made of.