1. Reporters:
Magno, Justine
Ami, Alvin Kyle
INSTITUE
OF
Aguilar, Gene Oliver
COMPUTER
STUDIES Emil Dom Henry
Talape, Jess
Del Prado, Adrian
Valeña, Mark Jayson

3. Computer Processing
Data
By: GROUP 4

4. What is computer data processing ?
Computer data processing is any process that
a computer program does to enter data and
summarize, analyze or otherwise convert data into
usable information. The process may be automated
and run on a computer. It involves recording,
analyzing, sorting, summarizing, calculating,
disseminating and storing data.
http://en.wikipedia.org/wiki/Computer_data_processing

5. Data Processing Cycle
Input Process Output
http://www.slideshare.net/ballplayer23/data-processing-7798780

6. Expanded Data Processing Cycle
Origination
Input
Process Storage
Output
Distribution

7. How Computer Process Data ?
Processing takes place in PC’s Central Processing
Unit (CPU).
The System’s memory also play in crucial role in
processing data.
Both CPU and memory are attach to system’s
motherboard, which connect all the computer
device together, enabling them to communicate.
http://www.presentationmagazine.com/free-powerpoint-sound-clips-11831.htm

8. Two basic Parts of CPU
• Control Unit
The control unit directs the flow of data through
the CPU, and to and from other devices.
• Arithmetic logic Unit
The ALU is connected to a set of register – small
memory areas in the CPU, which hold the data and
program instructions while there are being process.
http://www.brainybetty.com/soundsforpowerpoint.htm

9. Machine Cycle
• The CPU follow a set up of steps-called a
machine cycle for each instruction it
carries out.
• By using techniques called pipelining,
many CPU’s can process more than one
instruction at a time.
http://office.microsoft.com/en-us/powerpoint-help/add-

10. The Machine Cycle includes two
smaller cycle:
During the instruction cycle, the CPU
“fetches” a command or data from memory
and decodes it for the CPU.
During the execution cycle, the CPU
carries out the instruction, and may store
the instruction’s result in memory.

11. The Role of Memory
• RAM store data and program code needed
by CPU. The contents of RAM change rapidly
and often.
• Read-only memory (ROM) is nonvolatile (or
permanent). Its hold instruction that run the
computer when the power is turned on.
• The CPU accesses each location in memory
by using a unique number, called memory
address
http://www.123ppt.com/faqs/sound-effects-background-music.asp

13. Factors that Affect Processing
Speed
• The size of CPU’s Registers (word size)
determines how much data the computer can
process at one time .
• The more RAM has pc has, the more program
instruction and data can held in the memory.
• The system clock sets the pace for the CPU.
Speed is measured in hertz (Hz), or cycles in
second.

14. • A bus is a path between the components
of the computer, on which the data and
instruction are travel. The wider the bus ,
the more data it can carry.
• Cache memory is high-speed memory
that’s hold most recent data and
instructions that have been loaded by the
CPU.