The Nokia 9000 Communicator was the first product in Nokia's Communicator series, announced at CeBIT 1996 and introduced into the market on 15 August 1996. The phone was large and heavy at but powerful at the time. It is powered by an Intel 24 MHz i386 CPU and has 8 MB of memory, which is divided between applications (4 MB), program memory (2 MB) and user data (2 MB). The operating system is PEN/GEOS 3.0. The Communicator is one of the earliest smartphones on the market, after the IBM Simon in 1994 and the HP OmniGo 700LX, a DOS-based palmtop PC with integrated cradle for the Nokia 2110 cellular phone, announced in late 1995 and shipped in March 1996.