glossary category

An air distribution and cooling strategy in which cooling coils are suspended from the ceiling and air is circulated by natural convection with no fans or ducting

Equipment shall be provided with a power rating marking, the purpose of which is to specify a supply of correct voltage and frequency, and of adequate current-carrying capacity (IEC 60950, Clause 1.7.1)

Mean time between failure

The main circuit board of a computer. The motherboard contains the CPU, BIOS, memory, input/output ports, expansion slots, connectors for attaching additional boards and peripherals, and the controllers required to control those devices

Multimode fiber

Previously there were several specifications used to determine filter efficiency and characteristics. ASHRAE has developed the MERV categories so that a single number can be used to select and specify filters

Provides a fault-tolerant connection from the blade server to the server chassis and other components. The midplane replaces an average of nine cables typically required in rack and pedestal server configurations, eliminating excessive cables

A chip that contains a CPU. The terms microprocessor and CPU are quite often used interchangeably

The final results of a benchmark. The significant statistics reported from a benchmark run. Each benchmark defines what are valid metrics for that particular benchmark

Internal storage areas in the computer. The term memory identifies data storage that comes in the form of silicon, and the word storage is used for memory that exists on tapes or disks. The term memory is usually used as a shorthand for physical memory, which refers to the actual chips capable of holding data. Some computers also use virtual memory, which expands physical memory onto a hard disk