r
- Radiosity
- RADIUS
- RADSL
- RAID
- RAID 0
- RAID 1
- RAID 5
- Rainbow Effect
- RAM
- RAM Disk
- RAMDAC
- Ransomware
- RAS
- Raster
- Raster Image
- Rasterization
- RCA
- Read After Write
- Read Channel
- Read Verify
- Read/Write Head
- Real-time
- RealAudio
- Rear Projection
- Reed-Solomon
- Reflections
- Refresh Rate
- Registered Memory
- Registers
- Removable Disk
- Removable Storage
- Rendering
- Resistor
- Resolution
- Response Time
- Reverb
- RGB
- RIAA
- RIFF
- right click
- RIMM
- Ripper
- RISC
- RLE
- RLL
- Roland GS
- ROM
- Rootkit
- Rotation
- Router
- RPC
- RPM
- RS170A
- RTF
- RTV