"The number of elderly computer users will increase as the
population ages, and at the same time, the need for computer access
grows," he said.
Computer users plug the device into a PC, and it can be adjusted
depending on how severe the tremor is.
It is also able to recognise multiple clicking on a mouse button
caused by shaky digits.
IBM said it would partner up with a small UK-based electronics
firm, Montrose Secam, to produce the devices which will cost about £70.
James Cosgrave, one of the company's directors, said it would make
a big difference to those with tremors.
"I'm a pilot and my tremor condition has not limited my ability to
fly a plane," he said.
"But using a PC has proven almost impossible simply because
everything revolves around using the mouse to accurately manipulate the
tiny cursor on the screen."
He said a prototype of the gadget had transformed his life.
More to computers
The device could help open up computing to millions more people
who have found shaking to be a barrier.
Last year, the Office for National Statistics reported that for
the first time, more than half of all households in Britain had a home
With prices getting cheaper to get online too, computer ownership
But although 62% of British people have tried the internet, only
15% of Britons aged 65 or over have been online.
More than six million UK households now have a broadband net. By
the middle of 2005, it is estimated that 50% of all UK net users will be
There are still millions using the net through dial-up connections