__________ is the time taken to locate the disk arm to a specified track for data read/write.

Explanation

Access time is the total time it takes a computer to request data, and then that request to be met. Access time pertains to devices such as memory, hard drive, CD-ROM, or other mechanisms. Computer access time is commonly measured in nanoseconds or milliseconds and the lower the time the, better. Seek time is the time taken for a hard disk controller to locate a specific piece of stored data. Other delays include transfer time (data rate) and rotational delay (latency). When anything is read or written to a disc drive, the read/write head of the disc needs to move to the right position. The actual physical positioning of the read/write head of the disc is called seeking. The amount of time that it takes the read/write head of the disc to move from one part of the disk to another is called the seek time.