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  • Dual Device - Computer Fundamental

    By Adhyan Guruji → Friday, September 25, 2020


    Dual (Input/output) Devices

      §  Touch Screen Monitor


    Dual Device

    A Touch Screen is a computer display screen that is also an input device. The screens are sensitive to pressure; a user interacts with the computer by touching pictures or words on the screen.


      § Modem (internal / External)


    Dual Device

        A modem is a hardware networking device that converts data to a signal so it can be easily sent and received over a phone line, cable, or satellite connection. The modem converts data between analog and digital formats in real-time for two-way network communication. In the case of the high-speed digital modems popular today, the signal is much simpler and doesn't require the analog-to-digital conversion.


    §  NIC (Network Interface Card)


    A network interface card is a hardware component, typically a circuit board or chip, which is installed on a computer so that it can connect to a network. Modern NICs provide the functionality to computers such as support for I/O interrupts, direct memory access (DMA) interfaces, data transmission, network traffic engineering, and partitioning.


    § Sound Card


    Dual Device

    A sound card is an expansion component used in computers to receive and send audio. Sound cards are configured and utilized with the help of a software application and a device driver. The input device attached to receive audio data is usually a microphone, while the device used to output audio data is generally speakers or headphones.

    § Disk Drive

    ·         FDD



    Dual Device


    A floppy disk drive, also called FDD or FD for short, is a computer a disk drive that enables a user to save data to removable diskettes. 

    ·         Flash Drive



    Dual Device


    A Flash Drive is a small portable storage device that has no moving parts. Flash drives connect to computers and other devices via a built-in USB Type, making a flash drive a kind of combination USB device and cable.


    ·         Disk Drive




    Dual Device


    hard disk drive is a non-volatile memory hardware device that permanently stores and retrieves data on a computer. A hard drive is a secondary storage devise that consists of one or more platters to which data is written using a magnetic head, all inside of an air-sealed casing. 



    ·         CD/DVD Drive


    Dual Device

    Digital versatile disc-read only memory (DVD-ROM) is a read-only digital versatile disc (DVD) commonly used for storing large software applications. It is similar to a compact disk-read only memory (CD-ROM) but has a larger capacity. A DVD-ROM stores around 4.38 GB of data. A CD-ROM usually stores 650 MB of data.