Google Talk, which is often called G Talk, is a Windows based web application. G Talk is the most widely used chat application (both text and voice) on the internet. It can be downloaded and installed on your system easily and downloading it is free. From the Talk option in the More Google products section on the Google home page, Google Talk can be downloaded. Alternatively, the application link can be searched on Google and through the file googletalk-setup.exe, the installation process can be started. G talk can be used from the browser without installation too. G talk works with Windows Vista, XP, 2000, 2003 but not with Linux and MAC OS.
Google Talk (GTalk) is a free web-based application running under Windows for instant messaging and voice over internet protocol (VOIP) features, provided by Google Inc. To download, click "More" in the Google home page, then "Even more" in the menu that opens. In the page that appears, click "Talk" in the "Communicate, show & share" section.
Double-click on the file googletalk-setup.exe to start the installation. If you're running Windows Vista, a message will appear warning you that Google Talk only works on Windows 2000, XP or 2003. Ignore this and continue with the installation.
Two versions of Google Talk are available: one that must be installed on the computer and another that can be used from a browser without any installation.
There is no Linux or Mac OS version. However, GTalk supports multiple standards. It is possible to install other mail clients on Linux or Mac OS.