2. How computers work? By Charlie Mahon

3. Mother board The motherboard is the main part of the computer that makes it actually start up.

4. Hard disk A hard disk is the part of the computer that stores all the memory

5. Cpu The cpu is the brain of the computer Cpu stands for – central progressing unit

6. Ram The ram has 240 pins and it is used for a extra mother board & it lets you do loads of different things at once.

7. Graphics card The graphics card is where you can play games etc

8. Power supply The graphics card is where you can play games etc The power supply is how you actually get the computer to start

10. Quiz about Coloussus

11. Fill out the table. When you’ve finished look Through the slides.

12. Colouss

13. Where was Colossus built and made?

14. Colossus was built 1944 at bletchley park

15. What was the main reason Colossus was built?

16. To help end world war II

17. How many valves were used on each of the 10 Colossus machines?

18. 1500

19. Many years later transistors were invented

20. 2 billion

21. There was no such thing as software when Colossus was developed. How did they get it to work?

22. Re wiring