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AT&T was responsible for much of the base technology that made packet switching even possible. They did however stuck (largely for good technological reasons) w
by Aloha 10y ago
AT&T was responsible for much of the base technology that made packet switching even possible. They did however stuck (largely for good technological reasons) with circuit switching all the way thru, even if it was largely digital by 1984.
- wolfgke 10y agoEven today there are considerations whether packet switching is really better than circuit switching in particular if reliability is a concern: For circuit switching one can (often) guarantee, say, the bandwidth of the service offered over wire, for packet switching this is between hard and impossible. So while I can accept that for many applications packet switching is the better choice, I can understand AT&T at least with respect to why they still wanted to offer a circuit-switched service.
- iamcreasy 9y ago> for packet switching this is between hard and impossible. Isn't that what Virtual Circuits[1] are for? [1]https://en.wikipedia.org/wiki/Virtual_circuit https://en.wikipedia.org/wiki/Virtual_circuit