The phrase "a fully functional computer" is correct and usable in written English.
You can use it when describing a computer that operates without any issues or malfunctions.
Example: "After the repairs, the technician assured me that I now have a fully functional computer ready for use."
Alternatives: "an operational computer" or "a working computer".
A decade ago Bill Gates, founder and former chief executive of Microsoft, presented a new class of computing to the world: a tablet PC that offered a fully functional computer with the "intuitive aspects of pencil and paper".
It bought me what looks like a credit card-sized James Bond gadget prototype, but is actually a fully functional computer.
This could indicate that Apple wants the tablet to be a fully functional computer, rather than a more passive device for reading books and watching movies.
A group of us have recently started working on Nand2Tetris which builds a fully functional computer capable of running Tetris from the most basic electronic component the NAND gate.
The Mobile Assistant is a fully functional computer that uses voice commands, requires neither a desktop nor lap and doesn't need hands (a wrist-mounted minikeyboard is optional) to operate, said Carol Covin, the director of marketing for Xybernaut.
Although not yet recommended for the casual user, Familiar turns the iPaq into a fully functional computer complete with text editing and programming applications as well as games and a method for attaching the iPaq to a network and working on it from a remote terminal.
But when a fault appeared in its one fully functional computer, the flow of science data to the ground stopped.
From 1939 to 1944 Aiken, in collaboration with IBM, developed his first fully functional computer, known as the Harvard Mark I. The machine, like Babbage's, was huge: more than 50 feet (15 metres) long, weighing five tons, and consisting of about 750,000 separate parts, it was mostly mechanical.
The Khanya project was rolled-out in stages, thus eligible schools had to have fully functional computer rooms, with similar computer classroom furniture in terms of chairs, desks and computers.
The forthcoming Limepc and LimeOS represent the ever-shrinking "motherboard-on-a-chip" concept, allowing fully functional computers to run off of an integrated hardware board that's smaller than an iPod Nano.
Asked what was the strangest thing any of them had ever found on the tracks, one man told of having come across a fully functional laptop computer.
