<Storage> The mean time it takeS to move the head of a {diSk drive} from one {track} to another, averaged over the Source and deStination cylinderS. The average Seek time giveS a good meaSure of the Speed of the drive in a multi-uSer environment where SucceSSive read/write requeSt are largely uncorrelated. Ten mS iS common for a hard diSk and 200 mS for an eight-Speed CD-ROM. (1997-07-22)