The document discusses the central processing unit (CPU) or microprocessor, which is the component of a computer that executes programs and processes data. It contains several processing cores that allow it to perform multiple tasks simultaneously. Modern microprocessors can contain billions of transistors and operate at gigahertz speeds, allowing them to perform vast numbers of calculations in seconds. They execute instructions in a sequential fashion using a system of registers, memory, and an arithmetic logic unit.

1. Chapter 4 The Central Processing Unit

3. Microprocessors

6. MICROPROCESSOR

9. Transistor

13. Register

22. HOW MICROPROCESSOR WORKS?

26. History of Processor

27. History of Processor

28. History of Processor

29. History of Processor

30. History of Processor

31. History of Processor

32. History of Processor

33. History of Processor

36. Modern processor-INTEL DUAL-CORE PROCESSOR

37. Modern processor-INTEL DUAL-CORE PROCESSOR

39. Modern processor-INTEL CORE 2 QUAD PROCESSOR

41. Modern processor-AMD ATHLON 64 X2 DUAL-CORE

44. Steps to install new processor

45. Steps to install new processor

46. Steps to install heat sink Every processor has heat sink attached on top it to make it cool. Processor normally becomes hot while it is in operation; therefore heat sink with fan is attached on top of processor. Note: Make sure you have the correct heat sink/fan for your type of CPU (it will specify which type of CPU it is for).

51. Step 3-Heat sink with removable retention clips.

52. Step 3-Heat sink with removable retention clips.

53. Step 3-Heat sink with captive retention clips.

54. Step 3-Passive heat sink with removable retention clip.

56. Step 4