6thgrade ch.4sec.3computers

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  • A computer is an electronic device that stores, processes, and retrieves information.
  • RAM is lost at resetROM is permanent
  • 6thgrade ch.4sec.3computers

    1. 1. 001010110… convert text for humans• SIMILAR TO OUR BASE-10 SYSTEM OF COUNTING• EACH 1 OR 0 IS KNOWN AS A BIT• COMPUTER MEMORY IS MEASURED IN KILOBYTES(1000), MEGABYTES(1 M), GIGABYTES(1B), AND TERABYTES(1T)
    2. 2. COMPUTER HARDWARE• REFERS TO PERMANENT PARTS OF A COMPUTER• PARTS INCLUDE A CENTRAL PROCESSING UNIT(CPU), INPUT DEVICE, AND OUTPUT DEVICE
    3. 3. CENTRAL PROCESSING UNIT (CPU)• DIRECTS THE OPERATION OF THE COMPUTER, PERFORMS OPERATIONS AND CALCULATIONS, AND DIRECTS THE STORAGE AND RETRIEVAL OF INFORMATION
    4. 4. INPUT DEVICES• SENDS DATA TO THE CPU• EXAMPLES: KEYBOARD, MOUSE, GAMEPAD, SCANNER, MICROPHONE
    5. 5. OUTPUT DEVICES• PRESENTS DATA FROM THE COMPUTER• EXAMPLE: MONITOR, SPEAKERS, AND PRINTERS
    6. 6. • Random Access Memory (RAM) – temporary storage area for data while the computer is operating.• Read Only Memory (ROM) – information the computer needs to operate properly
    7. 7. • Used to store information• Examples: hard drive, floppy disk, cds
    8. 8. -instructions that directs the computer hardware to perform operations• Two kinds: – Operating System – set of basic instructions to keep a computer remaining – Application Software – grouped by their function, a particular task a computer can carry out
    9. 9. Computer Programming• Uses computer language and converts input information into instruction for the computer

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