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  2. Hard disk drive performance characteristics - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive...

    The measurable data transfer rate will be the lower (slower) of the two rates. The sustained data transfer rate or sustained throughput of a drive will be the lower of the sustained internal and sustained external rates. The sustained rate is less than or equal to the maximum or burst rate because it does not have the benefit of any cache or ...

  3. Effective data transfer rate - Wikipedia

    en.wikipedia.org/wiki/Effective_data_transfer_rate

    In telecommunications, effective data transfer rate is the average number of units of data, such as bits, characters, blocks, or frames, transferred per unit time from a source and accepted as valid by a sink. Note: The effective data transfer rate is usually expressed in bits, characters, blocks, or frames per second. The effective data ...

  4. Parallel ATA - Wikipedia

    en.wikipedia.org/wiki/Parallel_ATA

    As of July 2021, mechanical hard disk drives can transfer data at up to 524 MB/s, [42] which is far beyond the capabilities of the PATA/133 specification. High-performance solid state drives can transfer data at up to 7000–7500 MB/s. [43] Only the Ultra DMA modes use CRC to detect errors in data transfer between the controller and drive. This ...

  5. List of interface bit rates - Wikipedia

    en.wikipedia.org/wiki/List_of_interface_bit_rates

    For example, a single link PCIe 1.0 has a 2.5 Gbit/s transfer rate, yet its usable bandwidth is only 2 Gbit/s (250 MB/s). w Uses PAM-4 encoding and a 256 bytes FLIT block, of which 14 bytes are FEC and CRC, meaning that 5.47% of total data rate is

  6. Data-rate units - Wikipedia

    en.wikipedia.org/wiki/Data-rate_units

    In telecommunications, data transfer rate is the average number of bits , characters or symbols , or data blocks per unit time passing through a communication link in a data-transmission system. Common data rate units are multiples of bits per second (bit/s) and bytes per second (B/s).

  7. Measuring network throughput - Wikipedia

    en.wikipedia.org/wiki/Measuring_network_throughput

    People are often concerned about measuring the maximum data throughput in bits per second of a communications link or network access. A typical method of performing a measurement is to transfer a 'large' file from one system to another system and measure the time required to complete the transfer or copy of the file.

  8. List of computing and IT abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_computing_and_IT...

    DTE—Data Terminal Equipment or data transfer rate; DTO—Data Transfer Object; DTP—Desktop Publishing; DTR—Data Terminal Ready or Data transfer rate; DVD—Digital Versatile Disc or Digital Video Disc; DVD-R—DVD-Recordable; DVD-ROM—DVD-Read-Only Memory; DVD-RW—DVD-Rewritable; DVI—Digital Visual Interface; DVR—Digital Video ...

  9. UDMA - Wikipedia

    en.wikipedia.org/wiki/UDMA

    There are eight different UDMA modes, ranging from 0 to 6 for ATA (0 to 7 for CompactFlash), each with its own timing. 80-conductor cable used for modes faster than UDMA 2 on the left compared to a 40-conductor cable. Modes faster than UDMA mode 2 require an 80-conductor cable to reduce data settling times, lower impedance and reduce crosstalk. [1]