Basic Computer Hardware and Software



Yüklə 6,38 Kb.
tarix21.12.2023
ölçüsü6,38 Kb.
#188270
Computer Hardware and Software

Basic Computer Hardware and Software.

Guruh: 082-22

Tekshirdi: Sultanova Xilola

Bajardi: Umirbayev Ilnur

Input Devices

    • Input Devices: devices that input information into the computer such as a keyboard, mouse, scanner, and digital camera.

Output Devices

    • Output: devices that output information from the computer such as a printer and monitor.

Hardware and Software

  • Computer Hardware would include all the parts of a computer.
  • Computer Software includes the programs that are installed.. Or the instructions for completing tasks.

Central Processing Unit

    • CPU (Central Processing Unit) also called the Microprocessor or “The Brain” of the Computer.
    • Processor speed: The speed at which a microprocessor executes instructions. This is usually measured in megahertz (MHz).
    • Brands of Processors include:
      • Pentium
      • Celeron
      • MAC
      • AMD
      • Cyrix

Central Processing Unit

    • Computer chip: also called the microprocessor may contain an entire processing unit.
    • Computer chips contain millions of transistors. They are small pieces of semi-conducting material (silicon).
    • An integrated circuit is embedded in the silicon. Computers are made of many chips on a circuit board.

Data Storage Devices

    • The hard-drive is a mechanical storage device typically located internally.
      • Fast recording and recovery of data
      • Large storage capacity
      • Magnetic
      • Primary storage device for data and programs
      • Speed is measured in R.P.M.’s (Revolutions per minute)

Data Storage Devices (cont’d)

Data Storage Devices (cont’d)

  • Floppy diskette is magnetic storage device for small amounts of data (1.44MB).
  • FLASH drive is a compact and portable electronic storage device.
    • USB (plug and play) supported

Computer Memory

    • RAM (random access memory) stores data that is processing. This type of memory is erased when the computer is turned off.
    • ROM (read only memory) contains special instructions for the computer to operate.
    • Cache memory increases the speed of the processor by recording and anticipating instructions.

Graphic User Interface (GUI)

    • GUI (Graphic User Interface) is a set of images and icons seen on the desktop used to operate a program.
      • The GUI makes the programs loaded on the computer easier to access and use. Basic Windows GUI
      • Icons are small pictures that represent files, commands, or windows.
      • Windows is a GUI operating system.

Video Cards

    • Video cards plug into the motherboard and are used to display video.
    • VRAM is video memory that enhances the refreshment rate of the image.
    • Video cards have chipsets that can increase the speed of video display.

Ports and Peripherals

      • Ports are an interface between the computer and another peripheral device such as a disk drive, mouse, printer, modem, monitor, camera, FLASH drive or keyboard.
      • Examples:

        Serial

        Parallel

        hot-wire

        USB

Ports and Peripherals

      • Peripherals are devices that plug into a computer and are not housed internally.
      • Examples:

        Printers

        Scanners

        Cameras

LAN and WAN

    • LAN: are networks usually in the same company or building. The Local Area Network is connected via telephone lines or radio waves. Most LANs connect workstations.
    • WAN: are systems of LANs that are connected. (Wide-area network)

Bandwidth and Baud Rate

    • Bandwidth is how much information can be carried in a given time period (usually a second) over a wired or wireless communications link.
    • Baud rate is the rate at which information is transferred in a communication channel.

The End


Yüklə 6,38 Kb.

Dostları ilə paylaş:




Verilənlər bazası müəlliflik hüququ ilə müdafiə olunur ©azkurs.org 2024
rəhbərliyinə müraciət

gir | qeydiyyatdan keç
    Ana səhifə


yükləyin