Technology
Articles about devices, tools, digital systems and innovation.
RCA connector
ReactOS
ReactOS — an open-source, Windows-compatible operating system
Read-only memory
Read-only memory (ROM): overview, types, history, and uses
Non-volatile memory that stores firmware and system code. ROM preserves data without power and includes mask ROM, PROM, EPROM, EEPROM and flash; widely used for boot firmware and e
Real-time computing
Real-time computing: concepts, systems, and applications
Real-time operating system
Real-time operating system (RTOS): overview, features, and uses
Real-time strategy
ReCAPTCHA
Rechargeable battery
Rechargeable battery (secondary cell): overview, types, uses and safety
A rechargeable battery (secondary cell) stores electrical energy and can be restored by charging. Covers common chemistries, history, typical uses, charging practices, safety and e
Reconstructor
Reconstructor — Ubuntu ISO customization tool
Rectifier
Rectifier: Converting Alternating Current to Direct Current
Red Hat Linux
Red Hat Linux — discontinued community distribution and its legacy
Reduced instruction set computer
Reduced Instruction Set Computer (RISC)
Reel-to-reel tape recorders
Reel-to-Reel Tape Recorders: History, Design, Uses, and Legacy
Referential transparency
Referential transparency in programming and mathematics
Refresh rate
Refresh rate (display)
Refrigerator
Regional lockout
Regional lockout: how devices and media enforce geographic restrictions
Relational database
Relational database: structure, theory, and practical uses
Remote control
Remote control: purpose, components, history and common types
Remote keyless system
Remote keyless system: overview, types, operation and security
Repository (data)
Representational state transfer
Research and development
Residual-current device
Residual-current device (RCD) — safety device for electric shock and leakage protection
Resonator
RGB
RGB color model and its uses in digital imaging
Rhapsody (operating system)
Rhythm game
Rhythm game (rhythm action video games)
Robot
Rocketdyne F-1
Rocketdyne F-1 rocket engine
Roland D-50
Roland D-50: 1987 Linear Arithmetic Digital Synthesizer
Romanization of Japanese
Romanization of Japanese (rōmaji)
Rootkit
Rotary encoder
Rotary encoder: principles, types, and practical applications
Rotary switch
A mechanical switch operated by rotating a shaft to select among multiple electrical circuits or settings. Used in instrumentation, audio, industrial controls and range selection.
Rotating bolt
Rotating bolt (firearm locking mechanism)
Rotating furnace
Rotating furnace: spin-casting mirrors and lenses for astronomy
Router
Router (network device)
Rover
Rover: meanings, robotic explorers, vehicles and cultural uses
RPM Package Manager
RPM Package Manager (RPM)
RSA
RSA — cryptography, institutions, and other meanings
Runtime
Runtime: program execution, environments, and runtime systems
Rust (programming language)
Rust (programming language): overview, design, history, and uses
S.M.A.R.T.
Safe (container)
Safe mode
Safe mode (computing)
Safety razor
Samsung Galaxy
Samsung Galaxy: overview of Samsung's mobile device family