Re: Colnago C60

Jeff Liebermann <jeffl@cruzio.com> wrote:

On 8 Jan 2025 18:08:00 GMT, Roger Merriman <roger@sarlet.com> wrote:
 

Beta was I believe technically superior but didn’t get the market share,

 
"Why didn't Betamax become the standard for videotape like VHS did?"
<https://qr.ae/pY2cwu>
See first answer.
 
Betamax initially had the better looking picture.  Everything else was
equal or worse compared to VHS.  For example, Beta tapes were 60
minutes (or 90 minutes with thin tape) while VHS were 120 minutes (or
160 minutes with thin tape.
 
The big problem with Betamax was that Sony was inept and greedy.  They
owned Beta and wanted to be the exclusive supplier of Beta products.
Both Beta and VHS were licensed by Sony and JVC respectively, the
license fees and terms were very different.  In general, it was
difficult for manufacturers to obtain licenses from Sony.  So, lacking
any other alternatives, everyone went to JVC instead of Sony.  Sony
also demanded licenses for blank tape carts and rewinders.  After
chasing away almost all their potential licensees, Sony was left
wondering what went wrong. 
 

Didn’t they do that with DVD’s as well! Or am i misremembering?

considering how behind US phone tech was generally I’d be surprised if GSM
wasn’t in this case technically better, though both have been switched off
the networks by now.

 
Both what?  GSM and CDMA?

I believe both aren’t used anymore by phone networks at least?

 
I can write a rather technical comparison between GSM, CSMA, LTE (and
maybe 5G) that nobody here will understand.  Instead, I'll just point
out that the technical reasons for changing protocols is are usually
about spectrum efficiency, which is a measure of how many users per
MHz can the cellular provider send out bills, without having to buy
more bandwidth from the FCC (and expensive proposition).
 
"Spectral efficiency"
<https://en.wikipedia.org/wiki/Spectral_efficiency#Comparison_table>
 
 
 

Roger Merriman