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How are devices represented in UNIX?
All devices are shown by files called special files that are located in /dev directory. Therefore, device files and other files are named and accessed in the similar way. A 'regular file' is just an ordinary data file in the disk. A 'block special file' determines a device with characteristics same to a disk (data transfer in terms of blocks). A 'character special file' shows a device with characteristics same to a keyboard (data transfer is by stream of bits in sequential order).
Example: CMP AX,BX ; compare instruction: sets flags JE THERE ; if equal then skip the ADD instruction ADD AX, 02 ; add 02
decomposition
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Graphs are represented using Adjacency linked list
for ticket reservation in trains for payroll processing for insurance database
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