How VOIP works

IP telephony, also known as Internet Telephony, is what makes it possible to have over-the-internet phone conversations. A device called Internet Protocol (IP) is a data oriented protocol which is used by source and destination hosts for data communication across the internet through packet switching. It is much cheaper than the alternative which involves a […]

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How MP3 Files Work

MP3s, for good or for ill, have become a pervasive aspect of the computer and internet culture across the world. What is so special about this file format that allowed it to have such a profound impact on our culture and the way people listen to music all over the globe, and how does it […]

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How wifi works

Wi-fi refers to wireless networking, and is sometimes mentioned as 802.11. 802.11 is the standard designation of wireless networking. There are often letters added on after 802.11, and refer to the type of wireless network it is. The ‘g’ added on is the faster form of wireless networking, while ‘b’, more widespread, is the slower […]

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How to check internet speed

Two Types of Speed This information will help you check your PC’s throughput to and from the Internet. In measuring, there are two categories: upload speed and download speed. If you have a dialup connection, these two rates should be the same. With DSL or cable modems, however, they are probably different, the download speed […]

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How do webcams work?

Through perusing the internet I’m sure that you have come across many different types of webcams. Webcams have many different uses. They can be used to keep an eye on a baby sitter or to watch your home when you’re on vacation. You can even set up a webcam for making video phone calls! Basically, […]

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What are cookies and how do they work?

If you’ve spent time on the Internet, you’re probably familiar with cookies. Not the ones that taste good with milk, but the ones probably on your PC right now. The most common misconception about cookies is that they’re cyber spies, waiting to record and reveal everything you do on the Web. Although there may be […]

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How wireless internet works

Wireless Internet takes two dominant forms today, in the guise of two protocols: WAP and WiFi (also known as 802.11 networking). WAP is used primarily in cellular and PCS applications, such as mobile phones and PDAs (Personal Digital Assistants, like Palm Pilots). WiFi, or 802.11, is used for networking multiple computers together without using physical […]

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How cable modems work

A cable modem is used to transfer information over the television’s cable lines. Data that is transferred from the Internet to your computer is converted onto a 6 MHz channel so that on the television cable, that data appears to be a TV channel, and downstream data takes up no more space than any other […]

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How to get rid of a computer virus

The love bug, back orifice, Trojan horses, and the Davinci virus. All are greatly hyped viruses, strengthened to super-viruses by the media who report them. Hollywood has played a role, too, scaring computer users into thinking that at any moment their computer may be taken over. This is more fiction than fact; however, computer viruses […]

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How operating systems work

Most PC users see their computer system as hardware and software that effortlessly work together, but this couldn’t be further from the truth. Your PC needs a great deal of help to get it to run smoothly. And it receives help from the operating system. Operating systems are software. But they don’t crunch numbers, produce […]

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