"Gow (Gnu On Windows) is the lightweight alternative to Cygwin. ... about 130 extremely useful open source UNIX applications compiled as native win32 binaries. It is designed to be as small as possible, about 10 MB."
Sprog is a graphical tool which anyone can use to build programs by plugging parts together. In Sprog jargon, the parts are known as 'gears' and they are assembled to make a 'machine'. Types of programs: Get some input data, Process the data, Output the result