Block and Character Devices
{"Image DocumentName": "Block and Character Devices", "Image ImageDescription": "Block devices include disk drives. Commands include read, write, seek. Raw I/O or file-system access. Memory-mapped file access possible. Character devices include keyboards, mice, serial ports. Commands include get, put. Libraries layered on top allow line editing. Fred Kuhns (4/1/2017) CS422 \u2013 Operating Systems Concepts.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}