Detachable portable personal computer

Claim 1

A detachable portable personal computer comprising: an upper unit having a liquid crystal display, and data input means for permitting a user to input data and commands, a motherboard fastened at an inside of the upper unit, interface means for electrically connecting said upper unit to an external device, an integrated circuit card, a keyboard interface and a power supply respectively fastened at two opposite ends of the upper unit and electrically connected together, and two pivot joints located on a bottom edge of the upper unit at two opposite ends; a bottom unit comprising a keyboard at a top of the bottom unit, a power supply, a disc drive fastened below said keyboard, and first and second connectors at a top of the bottom unit at two corners of the bottom unit; means for electrically connecting said upper unit to said bottom unit upon fastening said two pivot joints in said first and second connectors to form a complete notebook computer; and means for detaching said upper unit from said bottom unit for use separately from said bottom unit.