MARTIN DOHRN / SCIENCE PHOTO LIBRARY. MARTIN DOHRN / SCIENCE PHOTO LIBRARY.
Macrophotograph of a section of the circuitry inside a Casio pocket calculator, showing the rectangular control chip (integrated circuit) at top centre. The control chip performs the central processing of the calculator, including receiving & decoding instructions, allocating instructions to the arithmetic logic unit (where the actual arithmetic is done) & storing the results of these calculations.
Model release not required. Property release not required.