In 1991, there was no talk of tablet computers, they were pen computers. Focusssing on handwriting recognition and interaction by a pen instead of fingers, software developers like Microsoft started including Pen Extensions into Windows 3.1 making it compatible with these pen computers. Microsoft predicted these computers would take over the consumer market in a matter of years, and hardware developers such as IBM, Samsung, Fujitsu and Toshiba quickly followed up to support the new technology with their new touchscreen devices. Tech press was positive but consumers were not ready for it yet. The devices simply did not sell. Millions of dollars in investment were not recouped and instead lost forever.