Abstract:
A novel microprocessor architecture can be easily interfaced with various peripheral devices. The microprocessor is generally made up of a CPU core, a RAM, a ROM and an input/output option. The RAM adjoins one edge of the CPU core and the ROM adjoins the opposite edge of the CPU core. The input/output (I/O) option adjoins a third edge of the CPU core and the parallel edges of the RAM and ROM. The input/output option is adapted to allow interfacing with various peripheral devices. The CPU core comprises CPU and segments commonly used to form a complete microprocessor. Such common segments may include a RAM address register facilitating access to the CPU by the peripheral devices.
Abstract:
A compact case including a case proper and a lid member which are connected to each other through a hinge so that the case is freely opened and closed, wherein concave notches communicating with each other are formed in rear end portions of the case proper and lid member, the hinge is contained in the notches so that the rear end face of the hinge is not projected outward, the upper portion of the hinge is rotatably connected to the lid member through a first shaft, and the lower portion of the hinge is rotatably connected to the case proper through a second shaft.