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Computer Hardware_castro

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    Computer Hardware_castro Computer Hardware_castro Presentation Transcript

    • COMPUTER HARDWARE
    • WHAT IS COMPUTER HARDWARE?
      • Refers to the physical and mechanical components of the computer system.
      • It consists of devices such as:
      • circuit boards
      • chips
      • Monitors
      • Disks
      • Disk drives
      • Modem
      • Keyboards
      • Printers
    • EVOLUTION OF COMPUTER HARDWARE
    • MECHANICAL CALCULATOR
      • made by Wilhelm Schickard.
      • used cogs and gears similar to those in clocks .
    • PUNCH CARD TECHNOLOGY
    • ELECTRONIC NUMERICAL INTEGRATOR ANALYZER AND COMPUTER(ENIAC)
      • designed by John Presper and John William Mauchly.
      • it was built by the US Army in 1945 to calculate the trajectory of ballistic missiles, at a cost of almost $500,000.
    • FUNCTIONS OF COMPUTER HARDWARE
    • STORAGE
      • Refers to the ability of computer to store and retain data in their memories
      • Types of Memory
      • Volatile memory - refers to computer memory that requires electric power to maintain stored data.
      • ex. Random-access memory (RAM)
      • 2. Non-volatile memory – retains data even if electric is cut off.
      • ex. hard disks, floppy disks, and CD ROMs
    • PROCESS
      • Data processing - Is defined as the conversion of data from one format to another
      • DATA – refers to a collection of numbers and characters which the computer understands.
      • MICROPROCESSOR – brain of the computer
          • controls the flow of data – Central processing unit (CPU)
    • METHOD OF PROCESSING
      • Parallel Processing - harnesses the power multiple processors in one computing entity to perform a single task.
      • Distributed Processing - is used to bind multiple computing entity so that they become a single centralized unit focused on common task or goal.
    • INPUT
      • computer hardware can take commands and be fed with information
      • Input Devices
      • Keyboard
      • Mouse
      • Trackball
      • touch pad
      • Joystick
      • graphic tablet
      • light pen
      • cyber gloves
      • touch screen
    • OUTPUT
      • ways for computers to communicate to the outside world, beginning with you.
      • Output Devices
      • Monitor or screen
      • Speaker
      • printer
    • PARTS OF THE COMPUTER
    • MONITOR
      • screen that displays what is going on in the computer.
    • KEYBOARD
      • Used to input textual information to the computer
    • MOUSE
      • lets you feeds instructions to the computer by simply pointing and clicking in a graphical environment
    • SYSTEM CASE
      • box that house the CPU.
      • It has expansion slots contains spare drive bays, and allows space to work inside for attachments to the system unit.
    • MOTHERBOARD
      • main circuit board in the computer.
      • Its chipset must support the kind of hardware you want with your system.
    • MAIN MEMORY/RAM
      • allows computers to store and retain information.
    • PROCESSOR
      • brain of the computer that handles the flow of all data.
    • HARD DISK
      • storage device that holds the operating system and other programs and data files.
    • FLOPPY DISK DRIVE
      • Perhaps the slowest form of long term secondary storage for the computer is the floppy disk with 1.44 MB disk drive.
    • CD-ROM/DVD-ROM DRIVE
      • reads CDs or DVDs.
    • VIDEO/GRAPHICS CARD
      • most graphics cards today have at least 32 MB.
      • Using a card that has less might cause problems with the computer you are building because many programs that use heavy graphics will not work.
    • SOUND CARD
      • converts data into sound to be sent to speakers or converts sounds to digital formats.
    • CABLE CONNECTORS
      • computer parts cannot come together by themselves.
    • OTHER PERIPHERALS
      • optional devices that you connect to your computer, like printers and removable storage devices.
    • PREPARED BY: Charity_Castro