Browse Definitions :
Definition

Parallel ATA (Parallel Advanced Technology Attachment or PATA)

Parallel ATA (Parallel Advanced Technology Attachment or PATA) is a standard for connecting hard drives into computer systems. As its name implies, PATA is based on parallel signaling technology, unlike serial ATA (SATA) devices that use serial signaling technology. Parallel ATA dates back to the 1980s. Integrated Drive Electronics ( IDE ) drives operate according to this standard.

The connections for PATA devices were originally made using 40-conductor ribbon cables. These were later supplanted by 80-conductor cables in which every other conductor is grounded, minimizing mutual capacitance (and consequent crosstalk ) between conductor s. The maximum workable cable length is 46 centimeters (about 18 inches). This means that PATA cables are only practical for use with internal drives.

Parallel ATA was originally called Advanced Technology Attachment ( ATA ) until the year 2003 when SATA was introduced. The cable for a SATA connection has seven conductors. These cables are more flexible than PATA cables and can be much longer, allowing the designer more latitude in the physical layout of a system. Because there are fewer conductors, crosstalk is less likely to be troublesome in SATA than in PATA. The signal voltage is lower as well (250 mV for SATA as compared with 5 V for PATA).

This was last updated in March 2011

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

  • compliance framework

    A compliance framework is a structured set of guidelines that details an organization's processes for maintaining accordance with...

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

  • privacy compliance

    Privacy compliance is a company's accordance with established personal information protection guidelines, specifications or ...

SearchSecurity

SearchHealthIT

  • telemedicine (telehealth)

    Telemedicine is the remote delivery of healthcare services, such as health assessments or consultations, over the ...

  • Project Nightingale

    Project Nightingale is a controversial partnership between Google and Ascension, the second largest health system in the United ...

  • medical practice management (MPM) software

    Medical practice management (MPM) software is a collection of computerized services used by healthcare professionals and ...

SearchDisasterRecovery

  • disaster recovery (DR) test

    A disaster recovery test (DR test) is the examination of each step in a disaster recovery plan as outlined in an organization's ...

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • disaster recovery (DR)

    Disaster recovery (DR) is an area of security planning that aims to protect an organization from the effects of significant ...

SearchStorage

  • kilobyte (KB or Kbyte)

    A kilobyte (KB or Kbyte) is a unit of measurement for computer memory or data storage used by mathematics and computer science ...

  • megabytes per second (MBps)

    Megabytes per second (MBps) is a unit of measurement for data transfer speed to and from a computer storage device.

  • zettabyte

    A zettabyte is a unit of measurement used by technology professionals and the general public to describe a computer or other ...

Close