I/O Devices

Input Output Devices


Block Devices and Character Devices


Q      Differentiate block devices and character devices.                                           ( 4 m)

Sr. No.Block DevicesCharacter Devices
1Communication through block of dataCommunication through single character
2More space for buffering requiredSingle byte will be used as buffer
3Read only blocks of dataRead the data character wise
4Random access of data is possibleOnly sequential access is possible
5e.g Hard disks, USB cameras, etce.g Serial ports, parallel ports, etc


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Last modified: Friday, 20 September 2019, 1:50 PM