Learn Visual
EN
JA
Learn it by watching it move.
Every lesson gives you one instrument — watch it, then move the controls yourself.
LEARN CS VISUAL
From a single bit to the whole machine
Nine lessons: bits, bytes, logic gates, memory.
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LEARN SQL VISUAL
See how an SQL query actually runs
SELECT, WHERE, JOIN, subqueries — clause by clause.
Step 1
SELECT name, city
Step 2
FROM customers
6 rows
Step 3
WHERE city = 'Osaka'
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HOW ONE LESSON GOES
01 EXPLANATION
One idea, shown as a figure you can read in a glance.
02 EXPERIMENT
The same figure, now with the controls handed to you.
03 CHECK
One question. Answer it and move on.