fixed head

noun

a recording head in a tape recorder or disk drive that cannot be moved relative to the center of the disk, offering reduced access time.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for fixed head

Historical Examples of fixed head

Two of the fixed-head tracks are devoted to the display: they drive a hardware-translator continuously.
On-Line Data-Acquisition Systems in Nuclear Physics, 1969
H. W. Fulbright et al.