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AHCI gives software developers and hardware designers a standard method for detecting, configuring, and programming SATA/AHCI adapters. AHCI is separate from the SATA 3 Gbit/s standard, although it exposes SATA's advanced capabilities (such as hot swapping and native command queuing) such that host systems can
A 3.5-inch Serial ATA hard disk drive A 2.5-inch Serial ATA solid-state drive. SATA was announced in 2000 [4] [5] in order to provide several advantages over the earlier PATA interface such as reduced cable size and cost (seven conductors instead of 40 or 80), native hot swapping, faster data transfer through higher signaling rates, and more efficient transfer through an (optional) I/O queuing ...
The SAS is a new generation serial communication protocol for devices designed to allow for much higher speed data transfers and is compatible with SATA. SAS uses a mechanically identical data and power connector to standard 3.5-inch SATA1/SATA2 HDDs, and many server-oriented SAS RAID controllers are also capable of addressing SATA hard drives.
Hence, its protocol is usually ATA (a.k.a. PATA), SATA, SCSI, FC or SAS. The front-end interface communicates with a computer's host adapter (HBA, Host Bus Adapter) and uses: one of ATA, SATA, SCSI, FC; these are popular protocols used by disks, so by using one of them a controller may transparently emulate a disk for a computer.
Advanced Host Controller Interface (AHCI): Initially designed for HDDs, AHCI is commonly used with SATA SSDs but is less efficient for modern SSDs due to its overhead. NVM Express (NVMe): A modern interface designed specifically for SSDs, NVMe takes full advantage of the parallelism in SSDs, providing significantly lower latency and higher ...
[3] [7] In comparison, the 6 Gbit/s raw bandwidth of SATA 3.0 equates effectively to 600 MB/s (6 GT/s raw data rate and 8b/10b encoding). There are three options available for the logical device interfaces and command sets used for interfacing with storage devices connected to a SATA Express controller: [6] [8] Legacy SATA
With the SATA 2.0 data transfer protocol increasingly proving to be the bottleneck for SSD performance, Indilinx released the Everest series controller supporting the SATA revision 3.0 protocol in July 2011. [6] Indilinx filed for Chapter 11 bankruptcy on December 2, 2013 alongside its parent company, then known as OCZ Technology Group. [1]
TRS-80 Model 1 Level 1 BASIC cassette tape interface: 250 bit/s: 32 B/s: 1977 C2N Commodore Datasette 1530 cassette tape interface: 300 bit/s: 15 B/s: 1977 Apple II cassette tape interface: 1.5 kbit/s: 200 B/s: 1977 Amstrad CPC tape: 2.0 kbit/s: 250 B/s: 1984 Single Density 8-inch FM Floppy Disk Controller (160 KB) 250 kbit/s: 31 KB/s: 1973