Browse Definitions :
Definition

PIO (Programmed Input/Output)

Programmed Input/Output (PIO) is a way of moving data between device s in a computer in which all data must pass through the processor . The Advanced Technology Attachment / Integrated Drive Electronics standard specifies three PIO data transfer rates (mode 0 at 3.3 MBps, mode 1 at 5.2 MBps, and mode 2 at 8.3 MBps). The newer Advanced Technology Attachment standard specifies two higher data transfer rates (mode 3 at 11.1 MBps and mode 4 at 16.6 MBps).

A newer alternative to PIO is Direct Memory Access ( DMA ). It's expected that PIO will be dropped from future industry standards, replaced entirely by DMA and Ultra DMA .

This was last updated in March 2011
SearchNetworking
  • network security

    Network security encompasses all the steps taken to protect the integrity of a computer network and the data within it.

  • cloud-native network function (CNF)

    A cloud-native network function (CNF) is a service that performs network duties in software, as opposed to purpose-built hardware.

  • microsegmentation

    Microsegmentation is a security technique that splits a network into definable zones and uses policies to dictate how data and ...

SearchSecurity
  • incident response

    Incident response is an organized approach to addressing and managing the aftermath of a security breach or cyberattack, also ...

  • MICR (magnetic ink character recognition)

    MICR (magnetic ink character recognition) is a technology invented in the 1950s that's used to verify the legitimacy or ...

  • What is cybersecurity?

    Cybersecurity is the protection of internet-connected systems such as hardware, software and data from cyberthreats.

SearchCIO
  • privacy compliance

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

  • contingent workforce

    A contingent workforce is a labor pool whose members are hired by an organization on an on-demand basis.

  • product development (new product development -- NPD)

    Product development, also called new product management, is a series of steps that includes the conceptualization, design, ...

SearchHRSoftware
  • talent acquisition

    Talent acquisition is the strategic process employers use to analyze their long-term talent needs in the context of business ...

  • employee retention

    Employee retention is the organizational goal of keeping productive and talented workers and reducing turnover by fostering a ...

  • hybrid work model

    A hybrid work model is a workforce structure that includes employees who work remotely and those who work on site, in a company's...

SearchCustomerExperience
  • digital marketing

    Digital marketing is a general term for any effort by a company to connect with customers through electronic technology.

  • hockey stick growth

    Hockey stick growth is a growth pattern in a line chart that shows a sudden and extremely rapid growth after a long period of ...

  • Salesforce Trailhead

    Salesforce Trailhead is a series of online tutorials that coach beginner and intermediate developers who need to learn how to ...

Close