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To be fare, $0 up front and pay for usage used to be called "time sharing," in which the mainframe you buy time on is located on someone else's premises. Only
by hapless 9y ago
To be fare, $0 up front and pay for usage used to be called "time sharing," in which the mainframe you buy time on is located on someone else's premises.
Only large and deep-pocketed users opted to lease a mainframe for their exclusive, local, use.
- ucaetano 9y ago"Time sharing" is different from "pay for usage". "Time sharing" is "pay X per month and use up to Y hours". "Pay per usage" is "pay X per hour of usage, no minimum requirements". In a time-share it can be very hard to break out of the contract.
- 0xCMP 9y agoSo in a sense "reserved instances" are more like time sharing then.
- ucaetano 9y agoYes, far more flexible, but in some sense yes. The key difference between cloud and the traditional mainframe model is the decoupling between usage and the assets. Time sharing is buying a share of an asset. Reserved instances is pre-commiting to computing utilization.