R
- random graph
- random number
- random number generation
- random number generator
- random sample
- random search
- random sequence
- random string generator
- random testing
- random variable
- randomized algorithm
- randomizer
- randomness
- range
- range check
- range expression
- range operator
- range query
- range reference
- range searching
- ranking
- ranking factor
- ransomware
- ransomware-as-a-service
- RAPID
- rapid prototyping
- RapidIO
- RARP
- RAS
- raster
- raster image processor
- rasterizer
- RAT
- rate limiting
- rating
- ratiometric measurement
- rational agent
- rationalist approach
- RAW
- raw files
- raw partition
- ray casting
- ray tracer
- ray tracing
- RBL
- RBOC
- RC4
- RCA
- RDBMS
- RDF
