Computer Hard Disk
by Steve Allen/science Photo Library
Title
Computer Hard Disk
Artist
Steve Allen/science Photo Library
Medium
Photograph - Photograph
Description
Computer hard disk and its read/write head. The hard disk (the circular structure seen edge-on) is a magnetic medium that computers store data on. The polarity of the magnetism corresponds to the ones and zeros of binary code. The hard disk rotates and a read/write head (at the end of the metal arm across centre) moves radially above the disk to access all parts. An electromagnet in this head is used to alter the disk's magnetism, writing data onto it. Electromagnetism is also used to read the data from the disk.
Uploaded
October 3rd, 2018
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