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Computer maintenance is the practice of keeping computers in a good state of repair. A computer containing accumulated dust and debris may not run properly. A computer containing accumulated dust and debris may not run properly.
This type of computer repair technician ranges from hobbyists and enthusiasts to those who work professionally in the field. Computer malfunctions can range from a minor setting that is incorrect, to spyware, viruses, and as far as replacing hardware and an entire operating system. Some technicians provide on-site services, usually at an hourly ...
The storage of computer programs is key to the operation of modern computers and is the connection between computer hardware and software. [7] Even prior to this, in the mid-19th century mathematician George Boole invented Boolean algebra —a system of logic where each proposition is either true or false.
A service desk is a primary IT function within the discipline of IT service management (ITSM) as defined by ITIL. It is intended to provide a Single Point of Contact (SPOC) to meet the communication needs of both users and IT staff, [7] and also to satisfy both Customer and IT Provider objectives.
If, due to a hardware fault or program error, the computer fails to restart the watchdog, the timer will elapse and generate a timeout signal. The timeout signal is used to initiate corrective actions. The corrective actions typically include placing the computer and associated hardware in a safe state and invoking a computer reboot.
A driver provides a software interface to hardware devices, enabling operating systems and other computer programs to access hardware functions without needing to know precise details about the hardware being used. A driver communicates with the device through the computer bus or communications
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The earliest computer architectures were designed on paper and then directly built into the final hardware form. [12] Later, computer architecture prototypes were physically built in the form of a transistor–transistor logic (TTL) computer—such as the prototypes of the 6800 and the PA-RISC—tested, and tweaked, before committing to the ...