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In the 1980s we downloaded games from the radio

(newslttrs.com)
286 points spzb | 1 comments | 28 Mar 25 22:14 UTC | HN request time: 0.298s | source
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pknerd ◴[31 Mar 25 13:37 UTC] No.43534911[source]▶
My brain is unable to grasp it..How does it work and at what speed things used to get downloaded?
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1. esafak ◴[31 Mar 25 16:38 UTC] No.43536966[source]▶
The data is encoded in subtle shifts in the frequency. This is a type of modulation. Look up https://en.wikipedia.org/wiki/Signal_modulation and https://en.wikipedia.org/wiki/Frequency-shift_keying