电子工程词典3disk coil display loss 201 disk coil See DISK WINDING. disk dynamo A rudimentary direct-current (dc) generator, in which a copper disk rotates between the poles of a permanent magnet. The outer edge of the disk becomes positively charged; the center of the disk becomes negatively charged. diskette A magnetic recording disk used for microcomputer data storage. Housed in a square, flat case. In personal computing, there are two sizes: 5.25 inches square and 3.5 inches square. The 5.25-inch version is flexible and is sometimes called a floppy disk. disk files An information-storage system in which data are recorded on rotating magnetic disks. disk generator 1. See DISK DYNAMO. 2. A disktype electrostatic generator. disk memory A common misnomer for DISK STORAGE. Disk Operating System Abbre……