MIS Presentation Chapter III: Hardware


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MIS Presentation Chapter III: Hardware

  1. 1. Chapter Presentation Hardware: Input, Processing, and Output Devices Group Member  Ben Piseth  Chin Putry  Chan Sopov  Chan Piseth  Chao Yorkchhive  Duch Mony  Chea Sokhom Prepared By Group1 1
  2. 2. Objectives  Define the term Hardware  Identify advantages of Hardware in organization.  Describe Hardware Components, and explain each component.Prepared By Group1 2
  3. 3. What is hardware?  Hardware refers to the physical components of a computer and devices that perform the input, processing, storage, and output activities of the computer.  Hardware can support objective of the information system, and goal of organization.Prepared By Group1 3
  4. 4. Advantages of hardware in Organization Organization invest in computer hardware to improve worker productivity, increase revenue, reduce cost, and provide better customer service, Speed up time-to-market, and enable collaboration among employees.Prepared By Group1 4
  5. 5. Computer System: Integrating the Power of Technology Hardware Components Central Processing Unit (CPU): • CPU and memory cooperate to execute data processing. • Consist three elements: Arithmetic/logic unit, control unit, and register. Arithmetic/logic unit (ALU): • Parts of CPU used to perform mathematical calculation and make logical comparisons. Control Unit: • The part of CPU sequentially accesses program instructions, decodes them, and coordinates the flow of data in and out of the ALU, the register.Prepared By Group1 5
  6. 6. Computer System: Integrating the Power of Technology  Register: • High-speed storage areas used to temporarily hold small units of program instruction and data immediately before, during, and after execution by the CPU.  Primary Storage: • Primary Storage, or Main memory, provides working storage for program instructions and data to be processed and provides them to the CPU.Prepared By Group1 6
  7. 7. Hardware Component in ActionPrepared By Group1 7
  8. 8. Processing and Memory Devices  Processing characteristics and function: • Machine cycle: make up from both instruction phase and execution phase. • Machine cycle: can be measured how many instruction are executed in a second. It is measured in Nanosecond, Picosecond, MIPS • Clock Speed: Computer system processing speed is affected by clock speed, which is measured in gigahertz (GHz).Prepared By Group1 8
  9. 9. Processing and Memory Devices Memory characteristics and function: • Main Memory: provides temporary working storages area for programs and data. It is measured in byte. Type of memory: • RAM (Random Access Memory) -> store data and instruction temporarily • ROM (Read Only Memory) -> instruction and data are stored permanently • Cache Memory -> a type of high-speed memory that CPU can access more rapidly than main memory.Prepared By Group1 9
  10. 10. Multiprocessing  Multiprocessing: • Refer to simultaneous execution of two or more instruction at the same time. • One form of multiprocessing uses coprocessor, which can speed up processing. • Multicore microprocessor combines two or more independent processors into a single computer so they can share the workload.Prepared By Group1 10
  11. 11. Parallel Computing  Parallel Computing: • Refer to simultaneous execution of the same task on multiple processors to obtain results faster. • Massively parallel processing involves linking many processors to work together to solve complex problems. • Grid computing is the use of a collection of computers to work in a coordinated manner to solve a common problem.Prepared By Group1 11
  12. 12. Secondary Storage  Secondary Storage: • Store a large amount of data and instruction safely and effectively.  Access Methods: • Data and information access can be sequential or direct. • Sequential Access: data must be accessed in the order in which it is stored. • Direct Access: data can be accessed directly. Without the need to pass by other data in sequences.Prepared By Group1 12
  13. 13. Secondary Storage Secondary Storage: • Magnetic storage devices - magnetic tape - magnetic disk • Optical storage devices - CD-ROM - DVD • Solid State Storage Devices - Store data in memory chips. Eg: flash drive. • Enterprise storage option - NAS - SANPrepared By Group1 13
  14. 14. Input and Output Devices Input Devices:• A devices used to entry data to computer system.• Input devices come in many forms. - Personal Computer Input Devices (Mouse, Keyboard..) - Speech recognition technology. - Digitals Cameras - Scanning devices - Bar-code scanners Output Devices:• Provide output to user in many forms. - Display Monitor - Printer and plotter - Digital Audio PlayersPrepared By Group1 14
  15. 15. Computer Systems Computer Systems • Generally divided into two categories: single user and multiple users. Single-Users • Systems include handheld, ultra laptop, portable, thin client, desktop, and workstation computers. Multi-Users • Systems include servers, blade servers, mainframes, and supercomputers.Prepared By Group1 15
  16. 16. Green Computing Green Computing : is concerned with the efficient and environmentally responsible design, manufacture, operation, and disposal of IS –related products. Three main goal: • Reduce the use of hazardous material • Lower power-related costs • Enable the safe disposal or recycling of IT Products.Prepared By Group1 16
  17. 17. Thank YouFor paying attention Prepared By Group1 17
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