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Last modified: Thursday, June 21, 2001 

Short for input/output (pronounced "eye-oh"). The term I/O is used to describe any program, operation or device that transfers data to or from a computer and to or from a peripheral device. Every transfer is an output from one device and an input into another. Devices such as keyboards and mouses are input-only devices while devices such as printers are output-only. A writable CD-ROM is both an input and an output device.

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Sponsored listings

Digi-Key: I O Interconnect Modular - Broad-line distributor web site features real-time stock status and pricing, online ordering, RFQ, technical support, product datasheets and photos.

INTEG Process Group: Ethernet Routers - Allows users to connect digital and analog process signals to their Ethernet network for interacting with a Web browser or software application.

Quatech: Serial Port Cards - Offers serial ports for portable, desktop and network systems with 1-16 port RS-232 and RS-422/485 adapters for PCI, USB, PCMCIA and CompactFlash.

For pages about I/O . Also check out the following links!

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Sponsored listings

Digi-Key: I/O Modules - Broad-line distributor web site features real-time stock status and pricing, online ordering, RFQ, technical support, product datasheets and photos.

Automation Systems Interconnect: Electrical Connectors - Manufacturer and supplier of interconnect and interface products which have been designed for industrial control equipment and systems.

Yokogawa: Data Acquisition Input Modules - Supplies industrial automation and control, test and measurement, and information systems, including data acquisition input modules.

Dataforth: Digital I/O - Supplies data acquisition, signal conditioning and data communication products for industrial applications worldwide.

Motorola: I/O Modules, Cards and Boards - Provides seamless mobility solutions for broadband, embedded systems and wireless networks, enabling fast, flexible, and cost-effective communication.

related categories


related terms

I/O adapter

integrated peripheral

peripheral device


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