data rate


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Related to data rate: Data transfer rate, Double data rate

data rate

[′dad·ə ‚rāt]
(communications)
The number of digital bits per second that are recorded or retrieved from a data storage device during the transfer of a large data block.

data rate

(communications, unit)
(Or "data ransfer rate", "transmission rate") The amount of data transferred per second by a communications channel or a computing or storage device.

Data rate is measured in units of bits per second (written "b/s" or "bps"), bytes per second (Bps), or baud.

When applied to data rate, the multiplier prefixes "kilo-", "mega-", "giga-", etc. (and their abbreviations, "k", "M", "G", etc.) always denote powers of 1000. For example, 64 kbps is 64,000 bits per second. This contrasts with units of storage where they stand for powers of 1024, e.g. 1 KB = 1024 bytes.

data rate

(1) The speed at which data is transferred within the computer or between a peripheral device and the computer, measured in bytes per second. See transfer rate and space/time.

(2) The speed at which audio and video files are encoded (compressed), measured in bits per second (see bit rate).

(3) The transmission speed of a network. For example, 100Base-T Ethernet is rated at 100 Mbps (megabits per second). Also called "bit rate." See space/time.
References in periodicals archive ?
Currently, a 15,000-RPM disk drive can achieve maximum throughput of around 100 MB/sec and can sustain data rates of around 75 MB/sec.
Given these statistics, it should be obvious that video conferencing from home, using current technology, requires the widest broadband connection we can get and some techno tricks to lower the data rate.
Wireless interconnects need to be rethought to provide easy-to-use connectivity at multi-gigabit data rates serving large file transfer and high definition multimedia streaming applications for consumer electronics, medical and computing devices," said Ruud van Bokhorst, Director of Standardization with Philips.
From a technology standpoint, the limits of device capacity or even data rates are not yet evident and are now expected to continue indefinitely but at varying rates of improvement in the years ahead.
We are pleased with the 10 Gbps data rates achieved for our multi-frequency band system.
For that price customers receive a drive with 10GB of native capacity and 1MB/sec data rate performance, along with features usually limited to more expensive solutions, such as read-while-write data verification.
As a result, the time needed to transfer protocol information decreases as the synchronous data rate increases.
With four channels each running at 10 Gb/s, the QSFP is the most practical solution for 40 Gb/s applications such as quad 10 Gb/s Fibre Channel (10GFC), quad 10 Gigabit/s Ethernet (10GE) and 4x quad data rate (QDR) InfiniBand.
TriQuint's new GaAs amplifier enables designers to achieve high efficiency and low power enhanced data rate (EDR) v2.