ancient as in the Chinese calculator that uses beads, or as in the first electronic computer, Eniac?
Pencil and paper, abacus, mechanical calculator, log tables, electronic calculator (or computer), proportional weighing machines.
electronic numerical integration and calculator is a misnomer for ENIAC. The correct term is electronic numerical integration and computer.
Electronic Numerical Integrator And Calculator.
The abacus, a calculator before calculators.
Abacus, slide rule, computer, calculator.
A Computer
Early computers i.e., Electronic Numerical Video and Calculator.
The name of the first commercially available electronic digital computer is UNIVAC.
A computer is defined as: A device that computes, especially a programmable electronic machine that performs high-speed mathematical or logical operations or that assembles, stores, correlates, or otherwise processes information. So, technically yes, they are both computers.
some electronic devices made that type of switch
A computer is one such device.