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# Online Computer Terms Dictionary - F

hard disk

Nearby terms: flip-flop « flippy « FLIP-SPUR « floating head » floating-point » floating-point accelerator » Floating-Point SPECbaserate

## floating-point

<programming> A number representation consisting of a mantissa, M, an exponent, E, and an (assumed) radix (or "base") . The number represented is M*R^E where R is the radix - usually ten but sometimes 2.

Many different representations are used for the mantissa and exponent themselves. The IEEE specify a standard representation which is used by many hardware floating-point systems.

Normalisation is the process of converting a floating point number into canonical form where any number other than zero has a mantissa whose first digit is non-zero.

Opposite: fixed-point.

(1995-03-21)

Nearby terms: flippy « FLIP-SPUR « floating head « floating-point » floating-point accelerator » Floating-Point SPECbaserate » Floating-Point SPECbaseratio

## floating-point accelerator

(FPA) Additional hardware to perform functions on floating-point numbers such as addition, multiplication, logarithms, exponentials, trigonometric functions and various kinds of rounding and error detection. A floating-point accelerator often functions as a co-processor to the CPU.

The term "floating-point accelerator" suggests a physically larger system, often an extra circuit board, whereas a "floating-point unit" is probably a single chip or even part of a chip.

(1994-12-01)

Nearby terms: FLIP-SPUR « floating head « floating-point « floating-point accelerator » Floating-Point SPECbaserate » Floating-Point SPECbaseratio » Floating-Point SPECrate

## Floating-Point SPECbaserate

SPECrate_base_fp92

Nearby terms: floating head « floating-point « floating-point accelerator « Floating-Point SPECbaserate » Floating-Point SPECbaseratio » Floating-Point SPECrate » Floating-Point SPECratio

## Floating-Point SPECbaseratio

SPECbase_fp92

Nearby terms: floating-point « floating-point accelerator « Floating-Point SPECbaserate « Floating-Point SPECbaseratio » Floating-Point SPECrate » Floating-Point SPECratio » floating point underflow

## Floating-Point SPECrate

SPECrate_fp92

Nearby terms: floating-point accelerator « Floating-Point SPECbaserate « Floating-Point SPECbaseratio « Floating-Point SPECrate » Floating-Point SPECratio » floating point underflow » Floating-Point Unit

## Floating-Point SPECratio

SPECfp92

Nearby terms: Floating-Point SPECbaserate « Floating-Point SPECbaseratio « Floating-Point SPECrate « Floating-Point SPECratio » floating point underflow » Floating-Point Unit » floating underflow

## floating point underflow

underflow

Nearby terms: Floating-Point SPECbaseratio « Floating-Point SPECrate « Floating-Point SPECratio « floating point underflow » Floating-Point Unit » floating underflow » F-Logic

## Floating-Point Unit

(FPU) A floating-point accelerator, usually in a single integrated circuit, possible on the same IC as the central processing unit.

(1994-10-27)

Nearby terms: Floating-Point SPECrate « Floating-Point SPECratio « floating point underflow « Floating-Point Unit » floating underflow » F-Logic » flood

## floating underflow

underflow

Nearby terms: Floating-Point SPECratio « floating point underflow « Floating-Point Unit « floating underflow » F-Logic » flood » FLOP

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