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CPU usage is the amount of processing speed and power that a processor uses at any time. The CPU, or Central Processing Unit, controls all input/output instructions in the system. If the CPU usage runs too high in a comp... More »

www.reference.com Technology Computers & Hardware

Firstly, terminate unnecessary applications. This can be performed from the task manager of most devices with a CPU, such as a Windows computer or an Android smart phone. Using "light" alternatives to applications will a... More »

www.reference.com Technology Computers & Hardware

Processes that dominate the CPU cause high CPU usage. These programs are either genuine or prohibited. Unwanted programs include viruses, spyware, ActiveX and Windows registry errors, Trojans and other malware. More »

www.reference.com Technology Computers & Hardware
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CPU speed is measured in megahertz and gigahertz. One gigahertz is 1,000 megahertz, so a CPU with a speed of 3.2 gigahertz is equivalent to 3,200 megahertz. More »

www.reference.com Technology Computers & Hardware

Test the speed of your CPU by using Windows Task Manager. It has a performance monitor that can report CPU speed as a live value and as a graph. More »

www.reference.com Technology Computers & Hardware

Cache memory is important because it provides data to a CPU faster than main memory, which increases the processor's speed. The alternative is to get the data from RAM, or random access memory, which is much slower. More »

www.reference.com Technology Computers & Hardware

The primary way of determining the speed of a computer processor is to look it up in the operating system's documentation. This will vary by whether your machine is governed by Microsoft, Apple, Linux or another OS. More »

www.reference.com Technology Computers & Hardware