Where has the practice of sending screen shots as source code come from?

[eryk sun]

On Mon, Jan 29, 2018 at 7:43 PM, John Ladasky
<john_ladasky at sbcglobal.net> wrote:
> On Sunday, January 28, 2018 at 7:07:11 AM UTC-8, Steven D'Aprano wrote:
>>
>> (The day a programmer posts a WAV file of themselves reading their code
>> out aloud, is the day I turn my modem off and leave the internet forever.)
>
> What's a... modem?

A modem is a MOulator-DEMmodulator. The idea is to transmit a baseband
signal by modulating the amplitude, frequency, or phase of a carrier
signal. At the receiving end, the signal is demodulated back to
baseband. It's a common technique in communication systems (e.g. DSL,
cable, wireless modems -- even optical modems). In popular culture,
people tend to think of telephone-system modems that were common in
the 1980s and 90s.