Computer Basics: Inside a Computer — Transcript

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1. 0:00you may already know that there are many
2. 0:02important parts inside a computer
3. 0:04but what exactly do they do let's take a
4. 0:07look inside and learn about the various
5. 0:09components that make a computer work
6. 0:12whether it's a desktop computer or a
7. 0:15laptop every computer has a large
8. 0:17circuit board
9. 0:18called a motherboard this contains some
10. 0:21of the most important parts of the
11. 0:22computer
12. 0:24such as the cpu also known as the
13. 0:26central processing unit
14. 0:27or processor the cpu can be considered
15. 0:31the brain
16. 0:31of the computer because it processes
17. 0:33information and carries out commands
18. 0:36since it tends to get hot it's covered
19. 0:38by a piece of metal called a heat sink
20. 0:41which draws heat away from the processor
21. 0:44the motherboard also contains the
22. 0:46computer's ram or random access memory
23. 0:50this is the short term memory that the
24. 0:52computer uses whenever it's performing
25. 0:54calculations
26. 0:55however you cannot store your files
27. 0:57there because the ram is cleared when
28. 1:00you shut off the computer
29. 1:02the hard drive provides long term
30. 1:04storage keeping
31. 1:06all of the computers data even when it's
32. 1:08turned off
33. 1:09many hard drives use a magnetic platter
34. 1:12to store data
35. 1:13but many newer computers have solid
36. 1:15state drives
37. 1:16which are faster and more durable but
38. 1:18also more expensive
39. 1:21on many desktop computers the
40. 1:23motherboard has expansion slots that
41. 1:26allow you to upgrade by adding expansion
42. 1:28cards
43. 1:29you can add a video card to get better
44. 1:31graphics performance
45. 1:32or you can add a wireless card to
46. 1:34connect to your wireless home network
47. 1:37most laptops however don't have
48. 1:39expansion slots
49. 1:41of course the computer's components need
50. 1:43electricity to run
51. 1:45the power supply unit is designed to
52. 1:47take power from the wall outlet
53. 1:48and send it to all of the different
54. 1:50components that need power
55. 1:52laptops also contain a built-in battery
56. 1:55that lets you use them anywhere
57. 1:57a computer is a pretty complex machine
58. 2:00but now that you've seen what goes on
59. 2:02inside
60. 2:02it should be a little less mysterious
61. 2:10gcf global creating opportunities for a
62. 2:13better life