The document discusses how a computer system works by describing the input, processing, and output of data. It also outlines the key parts of a computer that are necessary for it to function, including the central processing unit (CPU), random access memory (RAM), output devices, and secondary storage. The CPU is described in more detail, with its main components explained as the control unit, arithmetic logic unit, registers, cache, and buses that connect the various parts.

1. HOW COMPUTER SYSTEM
WORKS
Prepared by:
Jm Ramos

2. INPUT
• Data and commands in
order to work
–Example:
Letters and Numbers

3. PROCESS
• Computer works on the data
and command entered into
the computer

4. OUTPUT
• Result displayed on the
monitor or heard on the
speaker the data is
processed
• Result of data processing
• Processed data now is
called information

5. PARTS OF THE COMPUTER
TO FUNCTION PROPERLY

6. CPU

7. RAM

8. OUPUT DEVICES

9. SECONDARY STORAGE

11. COMMON USES OF
MICROPROCESSORS
• Embedded Micro
Controllers
–Can be found inside many
household electronic
appliances cars calculator
and others

12. COMMON USES OF
MICROPROCESSORS
• Common Desktop or Laptop
Processor
–Can perform a wide array of
task
–Motherboards, Hard Disk etc.

13. COMMON USES OF
MICROPROCESSORS
• Powerful Processor
–Most powerful processor for
high – end servers
–Powerful computer
applications

14. PARTS OF THE CPU

15. PARTS OF THE CPU
• Control Unit
–Electrical signals that direct
other parts of the system to
do their work
–Read and interpret program
instructions and convert it

16. PARTS OF THE CPU
• Arithmetic Logic Unit
–Executes the arithmetic and
logical operations like
calculations and comparisons

17. PARTS OF THE CPU
• Registers
–Small but high – speed data
storage
–Temporary storage areas
that hold data and instruction
temporarily

18. PARTS OF THE CPU
• Memory or RAM
–Allows fast access

19. PARTS OF THE CPU
• Cache
–Stores memory data
–Speeds up operations by
making recently accessed
data immediately available to
the processor

20. PARTS OF THE CPU
• Input/Output
–Allow the processor to
communicate with the RAM,
Hard Disk and other
components inside the
computer

21. PARTS OF THE CPU
• System Clock
–Provides the fixed sequence
in time that cannot be
changed
–no. of ticks in one cycle is
called the clock rate

22. PARTS OF THE CPU
• System Clock
–The faster the clock rate, the
faster is the processor in
processing instructions

23. PARTS OF THE CPU
• Bus
–Three sets of wires used to
connect the CPU or
microprocessor to CPU
cache memory
• Control bus
• Address bus
• Data bus

25. HOW CPU WORKS

26. THE END !!