Long time ago, I have designed
LSIs for desk-top calculator in NEC. Such LSIs greatly contributed the
evolution of integrated circuit industry due to the applicability for mass
production. Overall semiconductor technologies, such as device, logic,
circuit, mask layout design, photo-lithography, packaging, LSI test, and
reliability & quality control, advanced rapidly.
A calculator below can execute the calculation according to an original
equation without using a special sequence of key depression needed on a
activating a localized processing running on client side without getting any
network or server intervention.