Q: Please give a brief explanation of real time, online, time-sharing methods of data processing.
Chuck Kelley's Answer:
OK, here is mine ...
Real time - Immediate access to data. As soon as the data comes in, it is available to be seen.
Online - Having data available on disks. Data stored offline would be on tapes or CD ROM (not in a juke box).
Time share - This is when people share time on a machine. For example, you can have multiple folks logged into a UNIX or mainframe box. They share the time (along with the operating system) for the CPU cycles, disk access, network access, etc. Then, generally, these folks are charged for only the time that they used. This is different from your PC, where (generally) you are the only person logged in and are using the system.
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