I C T S M

Aim -  To study various cards used in a Computer System.  (Ethernet Card, Sound  Card, Video/Graphics Card, Network Interface card ,TV Tuner Card, Accelerator card)   Ethernet Card  An Ethernet card is one kind of network adapter. These adapters support the Ethernet standard for high-speed network connections via cables. Ethernet cards are sometimes known as network interface cards (NICs). The Ethernet card was created to build a Local Area Network (LAN). Once Ethernet cable is connected to the Ethernet cards of two or more computers over the LAN, one can transfer files and data. This can be carried out for external hardware such as printers and scanners when information from one computer needs to be transferred to another computer.  Sound Card   A sound card (also known as an audio card) is a computer expansion card that facilitates the input and output of audio signals to and from a computer under control of computer programs. Typical uses of soun...

Power Supplies Power supplies typically look like a rat's nest of wires. These wires are separated into two main groups: motherboard power connections and peripheral power connections. To begin with, the motherboard requires multiple levels of voltage and multiple sources for proper operation. Therefore, the connectors to the motherboard tend to appear complex. The figures below show the two main types of motherboard power connections that you will see.   Older AT Power Supply Connections for a Motherboard Newer ATX Power Supply Connections for a Motherboard Unfortunately, the power supplies in our Dell machines do not follow the standards. They are actually a combination of the new ATX style and the older AT style. The connectors, however, are keyed so that there is only one way for them to be connected. It is particularly easy to destroy a motherboard with the older AT-type power supplies by connecting the power connections wrong. As shown in the diagram, there are ...

  Aim: To identify the front panel indicators and switches and rear side connector in a computer system.   Components/Tools :   Computer with front, real panel connection, CD drive, USB, audio,   Parallel port (LPT parallel port): As shown in the diagram parallel port with 25-pins can be used to connect a parallel port printer. Previously dot matrix, ink jet, bubble jet printers etc were connected to parallel port. Nowadays-parallel port is used to connect Dot-Matrix printers. Serial port: As shown in the diagram serial ports with 9-pins protruding outwards can be used to connect modem but it can also be used for connecting mouse, provided serial port mouse is available. VGA Port: VGA port which has 15-pins is used to connect a monitor.   PS/2 Port: Two 6-pin PS/2 ports are there, one is violet to which keyboard is connected and other is Light green to which mouse is connected   USB Port: Connecting a USB device to a computer is simple — y...

 

VGA (Video Graphics Array) This is the cable that is often used to connect a CPU to a display. The cable has 15 pins in all that are arranged in 3 rows with 5 pins on each row. Each row transmits a different color channel: red, green, and blue. The VGA was first used in the 1980s and used an analogue connection to transmit picture. It became the standard cable to connect a monitor to a CPU.   However, as it often happens, technologies evolved. Now, it is generally accepted that a digital connection is a far better way to transmit pictures, which is why many computers have an alternative port such as DVI or HDMI. Yet, CPUs will still often have a VGA port and many people do still use it. DVI (Digital Visual Interface) DVI was the natural progression of transmission from VGA. Unlike, VGA, DVI used a digital interface to transmit images. This meant that DVI could be used to connect digital displays such as LCDs, which were much better and sharper and of generally better quali...

              Mouse Definition – Mouse is a pointing input device of computer. Mouse help to control cursor that is visible on the computer screen while moving the mouse on flat surface place. Its name was originated by its shape that look as mouse, because it has elliptical shaped with mouse tail. Mouse reduces usability of a keyboard. computer mouse. Traditional mouse was connected with computer through cable or cord, but now these days in the market have to various mouse are available such as wireless mouse, those mice do not need any physical wire to make connection with computer. In technology time, some mouse has some extra buttons for performing other special tasks. Who Invented Computer Mouse? Douglas Engelbart is computer mouse inventor. When computer mouse was created in 1960   In 1972, new mouse was developed, that mouse known as the “Ball Mouse”. Optical mouse was designed by Lisa M. Williams and Robert S. Cherry in 1980, in this ...