Package cake provides a simulation of a concurrent cake shop with numerous parameters.

Chat is a server that lets clients chat with each other.

Clock1 is a TCP server that periodically writes the time.

Clock is a TCP server that periodically writes the time.

Countdown implements the countdown for a rocket launch.

Countdown implements the countdown for a rocket launch.

Countdown implements the countdown for a rocket launch.

Crawl1 crawls web links starting with the command-line arguments.

Crawl2 crawls web links starting with the command-line arguments.

Crawl3 crawls web links starting with the command-line arguments.

The du1 command computes the disk usage of the files in a directory.

The du2 command computes the disk usage of the files in a directory.

The du3 command computes the disk usage of the files in a directory.

The du4 command computes the disk usage of the files in a directory.

Netcat1 is a read-only TCP client.

Netcat is a simple read/write client for TCP servers.

Netcat is a simple read/write client for TCP servers.

Pipeline1 demonstrates an infinite 3-stage pipeline.

Pipeline2 demonstrates a finite 3-stage pipeline.

Pipeline3 demonstrates a finite 3-stage pipeline with range, close, and unidirectional channel types.

Reverb1 is a TCP server that simulates an echo.

Reverb2 is a TCP server that simulates an echo.

Spinner displays an animation while computing the 45th Fibonacci number.

The thumbnail package produces thumbnail-size images from larger images.