  The computer industry is developing at a fast pace. With this development
almost all of the fields under computers have advanced in the past couple of
decades. But the same technology is being used for human computer interaction
that was used in 1970s. Even today the same type of keyboard and mouse is used
for interacting with computer systems. With the recent boom in the mobile
segment touchscreens have become popular for interaction with cell phones. But
these touchscreens are rarely used on traditional systems. This paper tries to
introduce methods for human computer interaction using the users hand which can
be used both on traditional computer platforms as well as cell phones. The
methods explain how the users detected hand can be used as input for
applications and also explain applications that can take advantage of this type
of interaction mechanism.
