TalentJR apps
Long ago people counted with tally sticks and the abacus, which uses beads on rods. Later came Napier’s bones for multiplying and the Pascaline, an adding machine with gear wheels made by Blaise Pascal. Charles Babbage planned the Difference Engine and the Analytical Engine, and he is called the father of the computer. Electronic computers grew through generations: vacuum tubes (1), transistors (2), integrated circuits (3) and microprocessors (4) — from room-sized machines to laptops and smartphones.
✓ You passed this lesson’s test.
From beads to chips — “counting tools came first, then machines, then electronic computers”
Use it for: Class 4 computer lessons on the history of computers, timeline charts and school projects on inventions.
Check: Tubes 1, transistors 2, ICs 3, microprocessors 4 ✓
▶ Watch it animatedRead the question, think about the computer at home or school, then tap your answer. Stuck? Press “Show me how”.
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20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.
🏅 Sign in with Google to earn the 🧮 Abacus to Laptop badge when you pass — and a certificate when you finish all 6 lessons of Part 4 · Class 4 Computer. You can still take the test without signing in.
Why does it work? When should you use it? Ask in English, मराठी or हिंदी.
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