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What are block and character devices?
Both the devices are present in /dev directory Block device files talks to devices block by block [1 block at a time (1 block = 512 bytes to 32KB)]. Examples: - USB disk, CDROM, Hard Disk (sda, sdb, sdc etc....) Character device files talk to devices character by character. Examples: - Virtual terminals, terminals, serial modems, random numbers (tty{0,1,2,3......})

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