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A dead key is a special kind of modifier key on a mechanical typewriter, or computer keyboard, that is typically used to attach a specific diacritic to a base letter. [1] The dead key does not generate a (complete) character by itself, but modifies the character generated by the key struck immediately after. Thus, a dedicated key is not needed ...
Similarly, typewriter repair people used to refer to "a loose nut behind the keyboard" or a "defective keyboard controller." The broadcast engineering or amateur radio version is referred to as a "short between the headphones". Another term used in public safety two-way radio (i.e. police, fire, ambulance, etc.) is a "defective PTT button ...
In the X Window System (Linux, BSD, Unix), AltGr can often be used to produce additional characters with almost every key on the keyboard. Furthermore, with some keys, AltGr will produce a dead key; for example on a UK keyboard, semicolon can be used to add an acute accent to a base letter, and left square bracket can be used to add a trema:
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 ...
However, additional tools or connections may be needed, such as low-level programming devices. Hardware hard brick recoveries are also considered difficult and require electrical knowledge to find and fix hardware issues. For example, an overloaded capacitor in a circuit may explode, thus stopping the flow of electricity and bricking the device.
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A computer repair technician is a person who repairs and maintains computers and servers. The technician 's responsibilities may extend to include building or configuring new hardware , installing and updating software packages, and creating and maintaining computer networks .
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