Why are price quotes for the same scrip different on 2 computers?

I saw today, when I was logged into 2 different accounts on 2 different computers that JSW Steel was at 201.50 on one computer and 201.70 on the other. How can this happen?

There is nothing abnormal about this. In a single second there could be multiple trades happening on the exchange. Most platforms can stream between 1 to 2 ticks in that one second to the marketwatch. When you have subscribed to JSW steel on two different machines and on two different markewatch, what price you get on one need not match another because in that exact second there could potentially have been multiple trades. So there could be a mismatch.

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