Wednesday, August 10, 2011

networking

A computer device network, often simply referred to as a network, is a collection of computers and it's devices interconnected by communications channels that facilitate communications and allows sharing of resources and information among interconnected devices. Put more simply, a computer network is a collection of two or more computers linked together for the purposes of sharing information, among other things. Computer networking or Data Communications and other is the engineering discipline concerned with computer networks. Computer networking is very useful this time of age.

output devices

 output devices

  Printer - a device that produces a permanent h text of graphic document in papers and sheets
    Speakers - typically a pair of devices (2 channels) which convert electrical signals into audio.(enjoable music device)
        Headphones - for a single user hearing the audio.(in two pair)
    Monitor - an electronic visual display with textual and graphical information from the computer.

Types of Monitor

        CRT - (Cathode Ray Tube) display
        LCD - (Liquid Crystal Display) as of 2010, it is the primary visual display for personal computers.
        LED - (light-emitting diode) display
        OLED - Organic Light-Emitting Diode

input devices

        Keyboard - a device to input text and characters by depressing buttons  as keys or

    Pointing devices
        Mouse - a pointing device that detects two dimensional motion relative to its supporting surface.
            Optical Mouse - uses light to determine mouse motion.
        Trackball - a pointing device consisting of an exposed protruding ball housed in a socket that detects rotation about two axes.
        Touchscreen - senses the user pressing directly on the display on screen

    Gaming devices
        Joystick - a control device that consists of a handheld stick that pivots around one end, to detect angles in two or three dimensions and reports its angle or direction to the device it is controlling.
        Game  - a hand held game controller that relies on the digits (especially thumbs) to provide input.
        Game controller - a specific type of controller specialized for certain gaming purposes.
    Image, Video input devices
         scanner - a device that provides input by analyzing images, printed text, handwriting, or an object.
        Web cam - a video camera used to provide visual input that can be easily transferred over the internet.
    Audio input devices
        Microphone - an device sensor that provides input by converting sound into electrical signals.

types of hardware


types of hardware

    1 Motherboard
    2 Power supply
    3 Removable media devices
    4 Secondary storage
    5 Sound card
    6 Input and output peripherals
         Input
         Output

what is hardware

hardware are the phyical parts of computer,. which is spoort to run computer and other work.A personal computer is create of multiple physical components of computer hardware, upon which can be installed a system software called an OS, and a multitude of software applications to perform the operator's desired functions.

 a PC comes in many different types, a typical personal computer consists of a case or chassis in a tower shape (desktop), containing components such as a motherboard.



Saturday, August 6, 2011

Types of Hardwares

  1.     PC Case
  2.     Motherboard
  3.     Keyboard
  4.     Mouse
  5.     Audio
  6.     Power Supply
  7.     Compact Disk Drive (CDD)
  8.     Digital Video Disk drive (DVD)
  9.     Hard Disk Drive (HDD)
  10.     Floppy Disk Drive (FDD)
  11.     Monitors (CRT and LCD)
  12.     Cables & Wires