B. Read by controller to get input C. Written by host to send output D. Written by host to start a command
Occurrence: 0, System Administrator 2026
The data-in register of I/O port is ____________ | Read by host to get input | CSS, PMS, PPSC, FPSC, KPPSC, SPSC, ISSB and NTS Past Papers | Pakistan's Largest Online Past Papers Database