ATA
PROS CONS
• Low cost • CPU intensive due to
• Well Understood
register programming
• Simple to Implement
approach
• Command Queuing
and Interleaving not
usually implemented
in Parallel ATA
Parallel ATA typically addressed the drive by using the cylinder numbers. This
meant that data was read in large units to minimise the CPU intensity by
requiring fewer commands to be issued.
Due to this large block read, it was impractical to use any form of command
queuing which helps optimise the seek order at the drive level.