A USB Wi-Fi adapter

A USB Wi-Fi adapter eliminates the need to hardwire the computer to a router or other network device. ... The adapterreceives signals from a wireless router or other wireless device and translates the signal so the computer user can access the Internet any time they are in range of a Wi-Fihotspot or wireless network. 

Types of lan card

The NIC contains the electronic circuitry required to communicate using a wired connection (e.g.,Ethernet) or a wireless connection (e.g., WiFi). Anetwork interface card is also known as a network interface controller, network adapter, or Local Area Network (LAN) adapter

Difference between a mechanical keyboard and a normal keyboard

A mechanical keyboard uses actual, physical switches underneath the keys to determine when the user has pushed a key. Press a key, and you press its switch down. Press the switch down, and thekeyboard sends a signal to the PC telling it that you pressed that key. At first, this design doesn't sound so remarkable.

Difference between speaker and microphone

However, in all likelyhood, the microphone is a Electret Microphone, which uses a capacitor which varies in capacitance in response to air pressure waves, e.g. sound. ... Speakers generally have lower impedance than microphones. Otherwise they are really the same thing, a transformer between sound and electrical energy

Here's a list of some motherboard brands.

Here's a list of some motherboard brands.

• Asus. Accepted as the world's largest motherboard manufacturer, Asustek Computer International is planning on expanding sales by 20% this year and is planning on achieving 50% of the global market by 2014. ...
• Gigabyte. ...
• MSI. ...
• ECS. ...
• Intel.

Difference between amd and intel processor

On the high end, such as in cases where you'll be pairing your CPU with a powerful AMD or Nvidia GPU, an Intel processor is the better option. In this case, using an Intel Core i3 or i5 CPU rather than an AMDequivalent can make the difference between 15 and 30 frames per second

Difference between desktop and all-in-one desktop

An all in one computer is basically a monitor in which you just plug in your mouse and keyboard, all the hardware are inside the monitor's case. While a desktop is made of a monitor + unit (motherboard, video card, RAM etc) in which you plug in your mouse and keyboard.