In 1989, The first commercially available tablet-type portable computer was the GRiDPad from GRiD Systems, released in September. Its operating system was based on MS-DOS.
In 1993, The IBM releases the ThinkPad, IBM's first commercialized portable tablet computer product available to the consumer market, as the IBM ThinkPad 750P and 360P.
In 1996, The Webbook Company announced the first Internet-based tablet, then referred to as a Web Surfboard, that would run Java and utilize a RISC processor. This product did not make it in stores.
In 1999 Intel announced a StrongARM based touch screen tablet computer under the name WebPAD, the tablet was later re-branded as the "Intel Web Tablet".