Global Variable

Making Single-Threaded Code Multithreaded
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Making Single-Threaded Code Multithreaded

Many current programs were written for single-threaded processes. Converting these to multithreading is much complicated than it may at first appear. Below we will study just a few of the drawbacks.

Clock Software
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Clock Software

All the clock hardware generate interrupts at known intervals. Everything else involving time must be done by the software, the clock driver. The exact duties of the clock driver vary among operating systems, but generally include most of the following:

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