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  • 1. Reporters:Magno, Justine Ami, Alvin Kyle INSTITUE OF Aguilar, Gene Oliver COMPUTER STUDIES Emil Dom Henry Talape, JessDel Prado, AdrianValea, Mark Jayson

2. Computer Processing Data By: GROUP 4 3. What is computer data processing ?Computer data processing is any process thata computer program does to enter data andsummarize, analyze or otherwise convert data intousable information. The process may be automatedand run on a computer. It involves recording,analyzing, sorting, summarizing, calculating,disseminating and storing data.http://en.wikipedia.org/wiki/Computer_data_processing 4. Data Processing CycleInput Process Outputhttp://www.slideshare.net/ballplayer23/data-processing-7798780 5. Expanded Data Processing Cycle OriginationInput Process StorageOutputDistribution 6. How Computer Process Data ?Processing takes place in PCs Central ProcessingUnit (CPU). The Systems memory also play in crucial role in processing data.Both CPU and memory are attach to systemsmotherboard, which connect all the computer device together, enabling them to communicate.http://www.presentationmagazine.com/free-powerpoint-sound-clips-11831.htm 7. Two basic Parts of CPU Control UnitThe control unit directs the flow of data throughthe 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 8. Machine Cycle The CPU follow a set up of steps-called amachine cycle for each instruction itcarries out. By using techniques called pipelining,many CPUs can process more than oneinstruction at a time.http://office.microsoft.com/en-us/powerpoint-help/add- 9. The Machine Cycle includes twosmaller cycle:During the instruction cycle, the CPUfetches a command or data from memoryand decodes it for the CPU.During the execution cycle, the CPUcarries out the instruction, and may storethe instructions result in memory. 10. The Role of Memory RAM store data and program code neededby CPU. The contents of RAM change rapidlyand often. Read-only memory (ROM) is nonvolatile (orpermanent). Its hold instruction that run thecomputer when the power is turned on. The CPU accesses each location in memoryby using a unique number, called memoryaddress http://www.123ppt.com/faqs/sound-effects-background-music.asp 11. Factors that Affect ProcessingSpeed The size of CPUs Registers (word size)determines how much data the computer canprocess at one time . The more RAM has pc has, the more programinstruction and data can held in the memory. The system clock sets the pace for the CPU.Speed is measured in hertz (Hz), or cycles insecond. 12. A bus is a path between the componentsof the computer, on which the data andinstruction are travel. The wider the bus ,the more data it can carry. Cache memory is high-speed memorythats hold most recent data andinstructions that have been loaded by theCPU.