
1) Rates
Found on
https://www.crosswordclues.com/clue/scan-rate

The rate lines are updated per second. The Amiga is linked to the TV standard of 15KHz (15 thousand lines per second), whilst PCs, Macs and graphic card based Amigas can go over the 30KHz required for many monitors.
Found on
http://www.amigahistory.co.uk/s.html

Refers to the frequency of a projector, monitor or signal. All computer signals ‘scan` across the screen, building up the image. Expressed in Hertz (kHz).
Found on
http://www.encyclo.co.uk/local/20523

The number of times, per second, that the device tries to read a barcode. Generally the more scans per second, the more versatile the device is
Found on
http://www.encyclo.co.uk/local/20618

<microscopy> The number of horizontal-scan lines per frame and vertical scans per second that are repeated in video, for example, 525/60, 625/50. In 525/60, 2: 1 interlaced video, the V scan is repeated at the field rate (which is half of the frame rate for 2: 1 interlaced video) so that 525 H scans take place 30 times a second. The H-scan ra...
Found on
http://www.encyclo.co.uk/local/20973
No exact match found.