Early computers such as the ENIAC had to be physically rewired to perform different tasks, which caused these machines to be … See more

Hardwired into a CPU's circuitry is a set of basic operations it can perform, called an instruction set. Such operations may involve, for example, … See more

The performance or speed of a processor depends on, among many other factors, the clock rate (generally given in multiples of hertz) and the instructions per clock (IPC), which … See more

1. ^ Integrated circuits are now used to implement all CPUs, except for a few machines designed to withstand large electromagnetic pulses, say from a nuclear weapon. See more

The fundamental operation of most CPUs, regardless of the physical form they take, is to execute a sequence of stored instructions that … See more

Most modern CPUs have privileged modes to support operating systems and virtualization.
Cloud computing can use virtualization to provide virtual central … See more

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