Race condition: A situation in which multiple processes or threads are competing for the same resources, and the outcome depends on the order in which they are executed. It is a common issue in the field of computer science and can lead to unpredictable or incorrect behavior. Examples include the use of locks and semaphores to prevent race conditions, the use of atomic operations to ensure sequential execution, and the use of concurrency control techniques to manage shared resources.

RACI (Responsible, Accountable, Consulted, and Informed) chart: A matrix used to define roles and responsibilities within a project or team. It is used in the field of project management to ensure that all stakeholders are aware of their roles and responsibilities and to avoid confusion or conflict. Examples include the use of RACI charts to assign tasks and deadlines, the use of RACI charts to track progress and issues, and the use of RACI charts to communicate roles and responsibilities to all stakeholders.

Radio Frequency Identification (RFID): A technology that uses electromagnetic fields to automatically identify and track objects, such as RFID tags attached to products or animals. It is used in supply chain management, inventory tracking, and security systems to automate data collection and tracking. Examples include using RFID tags to track packages in a warehouse, using RFID scanners to check inventory levels in a store, and using RFID-enabled access control systems to secure buildings or restricted areas.

Radio Frequency Interference (RFI): The unwanted effects of electromagnetic signals on electronic devices or systems. It is a common issue in the field of telecommunications and can lead to degraded performance or even failure. Examples include the use of shielding and filtering to prevent RFI, the use of frequency coordination to avoid interference, and the use of isolation techniques to minimize the effects of RFI.

RAID 0 (Disk Striping): A RAID (Redundant Array of Independent Disks) configuration that improves system performance by spreading data across multiple disks (striping). It offers no redundancy and does not protect against data loss; if one disk fails, all data on the array is lost. RAID 0 is best suited for situations where speed is more critical than data reliability.

RAID 10 (Striping and Mirroring): Combines the benefits of RAID 0 and RAID 1 by striping data across mirrored pairs of disks. It requires at least four disks and offers high performance, redundancy, and faster recovery from disk failures. RAID 10 is suitable for high-load, mission-critical systems.