In computer science, a digital electronic computer is a computer machine which is both an electronic computer and a digital computer.
A digital computer can perform its operations in the decimal system, in binary, in ternary or in other numeral systems.
A digital electronic computer is not necessarily a transistorized computer: before the advent of the transistor, computers used vacuum tubes. The transistor enabled electronic computers to become much more powerful, and recent and future developments in digital electronics may enable humanity to build even more powerful electronic computers. One such possible development is the memristor.