What ATA 133 Stands For?

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ATA is the abbreviated form of Advanced Technology Attachment. It refers to the standard for connecting hard drives and storage devices to the system's motherboard. It is also referred to as IDE. ATA has replaced earlier technologies such as MFM, ESDI and RLL. Over the years ATA standard has improved to include higher speeds and every new standard developed by ATA has a number attributed to it that sets it apart from its previous standard.

The initial interface makes use of transistor-transistor logic (TTL) bus interface, which uses the industry standard architecture (ISA) bus protocol. The key feature about the ISA protocol is that has an asynchronous method of data transfer, so only one data or command can be send at a time.

ATA 133 standard, also referred to as the ATA 7 standard, is a disk drive standard which is defined by a speed of 133 Mbs. The ATA standard uses DMA technique to free additional processor time to allow peripherals to access the system's RAM. Though its release was under considerable debate, it turned into the preferred standard for serial link implementation in system hardware. An advanced form of ATA 133 is Ultra ATA.

The later ATA standards incorporate serial data transfer and do not have any parallel data transfer schemes. The interesting feature about serial ATA is that it makes use of 4-wire cables and is preferred when data has to be transferred at faster speeds.

Newer standards changed from a parallel data transfer scheme to serial data transfer. Serial ATA (SATA) uses narrower 4-wire cables and is a preferred interface with faster data transfer speeds. ATA-7 introduced SATA, while ATA-8 is designated for use with hybrid drives that feature internal flash memory cache. An advanced form of ATA is the Ultra ATA, which combines technology with newer Packet interface to offer higher transmission speeds and faster communication.

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