CHM Tech | Screensavers @chmtech | Uploaded February 2018 | Updated October 2024, 1 hour ago.
Screensavers appeared in the early 1980s, as programs that would blank the screen or fill it with moving images or patterns, when the computer is not in use.

At the time, most computer screens were based on cathode ray tubes, or CRTs, and this technology had an annoying flaw - screen burn-in. This problem was annoying and worst of all, it was permanent!

Initially, the main purpose of screensavers was to prevent this from happening.

Allegedly, the first screensaver was created by software developer John Socha, who is best known for creating Norton Commander, and who also came up with the term ‘’screen saver’’.

Today, screensavers are mostly used for for decorative purposes, but can also be utilized for password protection and even for activating a useful background task like a virus scan.

Sources and references:

- Het Nieuwe Instituut:

‘’Jack Eastman’’ https://sleepmode.hetnieuweinstituut.nl/en/jack-eastman
‘’John Socha’’ https://sleepmode.hetnieuweinstituut.nl/en/john-socha

- Mental Floss: ‘’A Hypnotic History of Screensavers’’ mentalfloss.com/article/74837/hypnotic-history-screensavers

- Wikipedia:

‘’Screensaver’’ en.wikipedia.org/wiki/Screensaver
‘’Screen burn-in’’ en.wikipedia.org/wiki/Screen_burn-in
‘’Image persistence’’ en.wikipedia.org/wiki/Image_persistence
‘’After Dark’’ en.wikipedia.org/wiki/After_Dark_(software)

- How-To Geek: ‘’Why Screen Savers Are No Longer Necessary’’ howtogeek.com/128644/htg-explains-why-screen-savers-are-no-longer-necessary

- Elisoftware.org: ‘’After Dark 2.0 For Macintosh (Mac, 3 1/2" Disk)
Berkeley Systems - 1990 USA, Canada Release’’ elisoftware.org/index.php?title=After_Dark_2.0_For_Macintosh_(Mac,_3_1/2%22_Disk)_Berkeley_Systems_-_1990_USA,_Canada_Release

- ScienceFacts.net: ‘’Cathode Ray Tube (CRT)’’ sciencefacts.net/cathode-ray-tube-crt.html

- Cracked: ‘’6 Eerily Specific Inventions Predicted in Science Fiction’’ cracked.com/article_18846_6-eerily-specific-inventions-predicted-in-science-fiction.html

- Monitor Nerds: ‘’OLED PC Monitors 2018 – What’s Taking Them So Long???7 min read’’ monitornerds.com/oled-pc-monitors

B-Roll:

- Pixabay: ''Notebook'' pixabay.com/en/videos/notebook-keyboard-typing-writing-6378
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