GROMACS is a versatile package to perform molecular dynamics, i.e. simulate the Newtonian equations of motion for systems with hundreds to millions of particles.

NetEmul makes possible to build, configure networks and verify its availability. This program allows beginners to see the principles of operation of computer networks and gives a scope for experiments.

Multi-threaded TFTP server implementing all options (option extension and multicast) as specified in RFC1350, RFC2090, RFC2347, RFC2348, RFC2349 and RFC7440. Atftpd also supports the multicast protocol known as mtftp, defined in the PXE specification. The server is socket activated by default but supports being started from inetd(8) as well as in daemon mode using init scripts.

Netspeed is an applet for the GNOME panel that shows how much traffic occurs on a network device (ethernet card, wireless LAN card, or dial-up).

This package provides a window information utility for developers of applications, toolkits, and window managers. wininfo follows your pointer providing information about the windows below. The information presented includes: - a detailed description of the window hierarchy below the pointer; - parsed interpretations of standard properties from both the application window and the window manager; - information about X server resources used by the application.

This is the GNU C compiler, a fairly portable optimizing compiler for C.