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Key rollover is the ability of a computer keyboard to correctly handle several simultaneous keystrokes. A keyboard with n-key rollover ( NKRO) can correctly detect input from each key on the keyboard at the same time, regardless of how many other keys are also being pressed. Keyboards that lack full rollover will register an incorrect keystroke ...
The rubber ducky antenna (or rubber duck aerial) is an electrically short monopole antenna, invented by Richard B. Johnson, that functions somewhat like a base-loaded whip antenna. It consists of a springy wire in the shape of a narrow helix, sealed in a rubber or plastic jacket to protect the antenna. [ 1] The rubber ducky antenna is a form of ...
In the context of software state machines (and especially classical FSMs), the term state is often understood as a single state variable that can assume only a limited number of a priori determined values (e.g., two values in case of the keyboard, or more generally - some kind of variable with an enum type in many programming languages).
The step response of a system in a given initial state consists of the time evolution of its outputs when its control inputs are Heaviside step functions. In electronic engineering and control theory, step response is the time behaviour of the outputs of a general system when its inputs change from zero to one in a very short time.
Magic Desk was a planned series of productivity software by Commodore Business Machines for the Commodore 64.Only the first entry, Type and File, was ever released.It was introduced at the summer edition of the 1983 Consumer Electronics Show in June, slated for an August 31 release.
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The BASIC prompt for the Commodore 128 in 40-column mode, running Commodore BASIC V7.0. The C128's complex architecture [2] [3] includes four differently accessed kinds of RAM (128 KB main RAM, 16–64 KB VDC video RAM, 2 kNibbles VIC-II Color RAM, 2-KB floppy-drive RAM on C128Ds, 0, 128 or 512 KB REU RAM) [failed verification], two or three CPUs (main: 8502, Z80 for CP/M; the 128D also ...
What it is used for. Worst case execution time is typically used in reliable real-time systems, where understanding the worst case timing behaviour of software is important for reliability or correct functional behaviour. As an example, a computer system that controls the behaviour of an engine in a vehicle might need to respond to inputs ...