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.
Chester Library is at the heart of one of the most historic areas of Chesterfield County. Situated beside the Chester Village Green, its brick turret and faÃ§ade reflect the areaâs colonial beginnings while its warm interior with a charming train motif evokes the role of railroads in Chesterâs growth.