The many opportunities offered by wearable computing have triggered the imaginations of designers and researchers in a wide variety of fields. Computer Clothing also known as wearable Computers are miniature electronic devices that are worn by the bearer under, with or on top of clothing. This class of wearable technology has been developed for general or special purpose information technologies and media development. Wearable computers are especially useful for applications that require more complex computational support than just hardware coded logics. In this, Computer Clothing differ from PDAs (personal digital assistant), which are designed for hand-held use. They may also be integrated into everyday objects that are constantly worn on the body. Particularly it is a device that is always with the user, the user is able to enter commands and execute a set of entered commands while the user is walking around or doing any other activity. In reality limitations imposed by factors such as battery life, processor power, display brightness, network coverage and form factor have conspired to delay the widespread introduction of wearable computers. Nevertheless over the past ten years there have been many successful implementations and, as the relentless miniaturisation of computing devices continues, an increasing number of viable applications are emerging.