Computer Basic Information
In the third generation of computers:

high-level procedural languages were first used
on-line, realtime systems first became popular
an operating system was first developed
All of these
distributed data processing first became popular

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Computer Basic Information
The essential difference between an operating system like Linux and one like Windows is that

there are multiple versions of Linux, but only one version of Windows.
None of these
any programmer can modify Linux code, which is not permitted with Windows.
Windows can run with an Intel processor, whereas Linux cannot.
Linux is proprietary, whereas Windows is not.

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