The phrase "to spin the disk" means to start or activate a computer's hard drive or CD/DVD drive, allowing it to begin working and reading or writing data. Full definition
And they have great battery life, thanks to modern low - power processors and solid - state hard drives, which don't waste power on spinning disks. (lawyerist.com)
Photobleaching and phototoxicity are typically reduced by one to two orders of magnitude relative to that seen with a 1D scanned Bessel beam or the point array scanned excitation of spinning disk confocal microscopy. (science.sciencemag.org)