A general-purpose computer has 4 major parts: the arithmetic logic unit (ALU), the Regulate unit, the memory, plus the input and output equipment (collectively termed I/O). These elements are interconnected by buses, typically made from groups of wires. Inside Every of those areas are thousands to trillions of little electrical circuits that may be

Because the program counter is (conceptually) just another set of memory cells, it may be changed by calculations completed while in the ALU. Incorporating a hundred to This system counter would result in the subsequent instruction to be browse from an area 100 areas even more down This system.Equally, a computer may possibly from time to time retu