An introduction to the central processing unit.pptx
- 2. LESSON OBJECTIVES Define the central processing unit List the components of the CPU State the functions of the arithmetic and logic unit (ALU) and the control unit (CU) What is the CPU? State the components of the CPU and explain one of them
- 3. INTRODUCTION The central processing unit (CPU) is a computer chip called a processor. It is the brainofthecomputer.Itisthepartofthecomputerthatperformsmanipulations ofdatasuchascalculations.Inpersonalcomputers,theCPUishousedinasingle chipcalledamicroprocessor. ThemainfocusoftheCPUisitmanagesdatapaths,monitorscacheandregisters clockmanagementetc.TheperformanceoftheCPUisdependentontheclockrate.
- 4. COMPONENTS OF THE CPU 1.Control unit (CU) 2. Arithmetic logic unit (ALU) 3. Memory Unit
- 5. FUNCTIONS OF THE CONTROL UNIT 1. It controls and coordinates the operations of the computer system. 2. It communicates with the ALU and main memory 3. It coordinates the activities of peripheral and auxiliary storage devices 4. It uses the instruction register in routing the next instruction to be executed 5. It manages the system clock.
- 6. FUNCTIONS OF THE ARITHMETIC LOGIC UNIT(ALU) 1.It executes all arithmetic and logical operations. 2.It performs comparison of numbers. 3.It performs logical operations.
- 7. REGISTERS Registers are temporary storage areas for instructions and data in the CPU. Examples of registers include program counter, Current instruction register, Memory address register, Memory data register etc.
- 8. THANK YOU