Computer Devices

Computer Devices

1. Mouse

   • Optical mouse. An optical computer mouse uses a light source, typically a light-emitting diode, and a light detector, such as an array of photodiodes or an image sensor, to detect movement relative to a surface. It is an alternative to the mechanical mouse, which uses moving parts to perform the same function.

2. Headphones/Earphones

   • Large headphones are essentially just two loudspeakers mounted on a strap that clamps firmly over your head. Ear buds work the same way but, as you would expect, everything inside them (the magnet, the coil of wire, and the diaphragm cone that makes sound) is shrunk down to a much smaller size.

3. Microphone

   • A loudspeaker, a transducer that turns an electrical signal into sound waves, is the functional opposite of a microphone. Since a conventional speaker is constructed much like a dynamic microphone (with a diaphragm, coil and magnet), speakers can actually work "in reverse" as microphones.

4. Webacam

5. USB stick

6. Hard drive

7. Dongle

   • It can be referred to as a dongle, USB modem, internet stick, USB network adapter or USB mobile broadband stick. Dongles are popular because they offer greater flexibility than fixed line connections and can be used on the go.

8. Bluetooth

   • A Bluetooth® device works by using radio waves instead of wires or cables to connect with your cell phone, smartphone or computer. Bluetooth is a wireless short-range communications technology standard found in millions of products we use every day – including headsets, smartphones, laptops and portable speakers.

9. Charger

   • A simple charger works by supplying a constant DC or pulsed DC power source to a battery being charged. The simple charger does not alter its output based on time or the charge on the battery. This simplicity means that a simple charger is inexpensive, but there is a tradeoff in quality.

10. Keyboard

    • Computer keyboards are generally quicker to use than old-fashioned typewriter keyboards, though they're still no match for dictating your documents with voice recognition software.

11. Speakers

    • When a fluctuating electric current flows through the coil , it becomes a temporary electromagnet, attracted and repelled by the permanent magnet. As the coil moves, it moves the cone back and forth, pumping sound waves into the air.

12. Printer

    • An inkjet printer is any printer that places extremely small droplets of ink onto paper to create an image. If you ever look at a piece of paper that has come out of an inkjet printer

13. Router/Internet

    • Routing is the process of forwarding IP packets from one network to another. A router is a device that joins networks together and routes traffic between them. A router will have at least two network cards (NICs), one physically connected to one network and the other physically connected to another network. A router can connect any number of networks together providing it has a dedicated NIC for each network.

14. Recording Interface

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