I/O (input/output) fencing is the isolation of a malfunctioning node from a cluster's shared storage to protect the integrity of data.  

I/O virtualization (input/output virtualization or IOV) is the abstraction of upper layer protocols from physical connections or physical transport.

The I2C (Inter-IC) bus is a bi-directional two-wire serial bus that provides a communication link between integrated circuits (ICs). There are three data transfer speeds for the I2C bus: standard, fast-mode, and high-speed mode. 

A provision model in which an organization outsources the equipment used to support operations, including storage, hardware, servers and networking components. The service provider owns and is responsible for the equipments.

The iBatis framework is a lightweight data mapping framework and persistence API that can be used to quickly leverage a legacy database schema to generate a database persistence layer for your Java application. A set of XML encoded SQL Map files–one for each database table–holds SQL templates that are executed as prepared statements and map the expected results to Java domain classes.

iBeacon is the Apple Trademark for an indoor positioning system that Apple Inc. calls "a new class of low-powered, low-cost transmitters that can notify nearby iOS 7 devices of their presence." The technology enables an iOS device or other hardware to send push notifications to iOS devices in close proximity. The iBeacon works on Bluetooth Low Energy (BLE), also known as Bluetooth Smart. BLE can also be found on Bluetooth 4.0 devices that support dual mode.

IBM (International Business Machines) is by far the world's largest information technology company in terms of revenue ($88 billion in 2000) and by most other measures, a position it has held for about the past 50 years. 

IBM Algorithmics software enables financial institutions and corporate treasuries to make risk-aware business decisions. IBM Algorithmics solution offerings include market, credit and liquidity risk, as well as collateral and capital management.  

The newest edition of database management solution offered by the well-known IBM Corporation. It supports programming languages such as Visual Basic, XML, Perl, SQL, COBOL, Java, and C/C++.

IBM Domino (formerly IBM Lotus Domino) is an IBM server product that provides enterprise-grade e-mail, collaboration capabilities, and a custom application platform.

A set of customizable online work collaboration products from IBM's Lotus division. The products consist of Workplace Messaging, Team Collaboration, Collaborative Learning, and Web Content Management.

IBM Maximo Asset Management is an enterprise asset management (EAM) software solution product produced by IBM. It is a solution which is used to operate, maintain and dispose of enterprise assets.

IBM Notes is a client side software that provides business collaboration functionality, including email, calendars, to do lists, contacts management, teamrooms, discussion forums, file sharing, microblogging, instant messaging, blogs, and user directories.

An enterprise search platform made by IBM that supports secure intranets, delivers relevant and specific search results, increases security and integrates with many types of content sources in multiples languages. 

IBM QRadar is a Security Intelligence Platform that provides a unified architecture for integrating security information and event management (SIEM), log management, anomaly detection, incident forensics and configuration and vulnerability management to deliver superior threat detection, greater ease of use and lower cost of ownership.

A type of non-volatile, solid state nanotech memory being developed by IBM. Racetrack memory works by storing oppositely oriented magnetic regions in nanowires called racetracks.