Pthreads for Not Yet Techies

"Computer Careers: Speeding Up the Applications You Develop by Multitasking"

by Richard Stooker, President Info Ring Press and author of Secrets of Changing to a Computer Career

Pthreads allows multiple tasks run concurrently in the same application. Pthreads meets the POSIX (Portable Operating Systems Interface) standard 1003.1c and started about 1995 or 1996.

Pthreads has Concurrent Programming Environments designed for multi-vendor platforms and built on top of the Unix C programming interface.

In the early days of computers, programmers were thankful when they could get a computer to do anything. Due to hardware limitations, nobody thought about trying to make computers do two things at once. It is an advance on that.

Hardware is now much farther advanced and so programming has advanced to developing ways to make programs do more than one thing at a time, using a single or multiple processors. It is multitasking for the inner works of a computer and of course speeds up applications.

Pthreads is a standardized model for dividing programs into subtasks whose execution can be interlaced or run together

The Pthreads model divides the programming process into two parts.

1. process -- involving global resources and instructions

2. threads -- execution statements

Next: Python

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