Public Wi-Fi

A Wi-Fi hotspot is part of a wireless network composed of a series of wireless access points, sometimes described as a "lily pad" of wireless access points. Many public and private establishments offer free Wi-Fi to patrons within their buildings, while major telecommunication companies offer subscription services that allow you to... more »

An internal wireless card is a device inside a computer (usually a laptop) that allows it to connect to wireless networks. While older laptops were unable to host an internal wireless card, some models gave users the option to include one when ordering the computer or to add one at a later date. Today, virtually every laptop includes... more »

Outlook Express is the free version of Microsoft's Outlook email program. It was included, along with Internet Explorer, as part of Windows 98 through XP. Versions were also released that were compatible with Windows 95 and Mac OS 9. It has since been replaced (starting with Windows Vista) with Windows Live Mail. Outlook Express... more »

Wi-Fi is a type of computer network. Most commonly used for accessing the Internet, it is also quite popular in homes, offices and as a perk in hotels, libraries, airports and other public places. Many communities have started to offer a municipal wireless network, which enables all parts of the city to support wireless connectivity. more »

Asymmetric encryption systems require users to use two alphanumeric keys, one private and the other public. Your public key, available to anyone, allows an outside sender to automatically generate a code using a defined set of explicit algorithms (instructions). When John Doe sends you an encrypted e-mail, he uses your public key to... more »