1 The hard disk has a small arm that can move from ring to ring on the surface of the disk. To reach a particular sector, the hard disk moves the arm to the right ring and waits for the sector to spin into position.  Hard disks are slow in computer terms.
Chester William Nimitz, Sr. (/ËnÉªmÉªts/; February 24, 1885 â February 20, 1966) was a fleet admiral of the United States Navy.
People who were born in, residents of, or otherwise closely associated with Chester Township include: 1  Jim Breuer (born 1967), comedian. 2  Alex Buzbee (born 1985), defensive end for the Washington Redskins of the NFL. 3  Robert L. Clifford (1924-2014), associate justice of the New Jersey Supreme Court.