Unformatted text preview: tronically, information was available instantly. The magnetic disk , a new auxiliary storage device, was also developed during the second generation. The magnetic disk is faster than magnetic tape because each data item can be accessed directly by referring to its location on the disk. Unlike a tape, which cannot access a piece of data without accessing everything on the tape that comes before it, a disk is organized so that each piece of data has its own location identifier called an address. The read-write heads of a magnetic disk can be sent directly to the specific location on the disk where the desired information is stored. Third Generation (1965–1971) In the second generation, transistors and other components for the computer were assembled by hand on printed circuit boards . The third generation is characterized by integrated circuits (IC), solid pieces of silicon that contained the transistors, other components, and their...
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- Fall '10
- Integrated Circuit, storage device, magnetic disk, William B. Shockley, Walter H. Brattain, Andrew Wylie