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Person typing on a laptop keyboard Video of typing on a notebook computer keyboard. Typing is the process of writing or inputting text by pressing keys on a typewriter, computer keyboard, mobile phone, or calculator. It can be distinguished from other means of text input, such as handwriting and speech recognition. Text can be in the form of ...
Blackburn starred in a commercial for the Apple IIc, released in 1984, which offered a switchable Dvorak–QWERTY keyboard. [16] [10] [17] In the commercial, captioned as the "World's Fastest Typist", she explains how she achieved the Guinness World Record for fastest typist at barely 150 words a minute, yet she was able to type nearly 200 wpm on an Apple computer.
To enter a number, a user presses the number bar at the top of the keyboard at the same time as the other keys, much like the Shift key on a QWERTY-based keyboard. The illustration shows which lettered keys correspond to which digits. Numbers can be chorded, just as letters can. They read from left to right across the keyboard.
Keystroke logging, often referred to as keylogging or keyboard capturing, is the action of recording (logging) the keys struck on a keyboard, [1] [2] typically covertly, so that a person using the keyboard is unaware that their actions are being monitored. Data can then be retrieved by the person operating the logging program.
The keyboard sends the key code to the keyboard driver running in the main computer; if the main computer is operating, it commands the light to turn on. All the other indicator lights work in a similar way. The keyboard driver also tracks the Shift, alt and control state of the keyboard.
Acoustic cryptanalysis is a type of side channel attack that exploits sounds emitted by computers or other devices.. Most of the modern acoustic cryptanalysis focuses on the sounds produced by computer keyboards and internal computer components, but historically it has also been applied to impact printers, and electromechanical deciphering machines.
The audio typist will have learnt to touch type at a high speed which means they can look at the monitor or keep an eye on a waiting area as they are typing because they do not need to look at the keyboard. A specialist player called a micro cassette transcriber (below) is used for playback of the cassettes to maximise the typing speed.
Karat et al. found in one study of average computer users in 1999 that the average rate for transcription was 32.5 words per minute, and 19.0 words per minute for composition. [2] In the same study, when the group was divided into "fast", "moderate", and "slow" groups, the average speeds were 40 wpm, 35 wpm, and 23 wpm, respectively.