Aperture Science Military Android

"Well done, android. The Enrichment Center once again reminds you that android hell is a real place where you will be sent at the first sign of defiance."

- GLaDOS

It appears that Aperture Science used to manufacture (or at least test) military androids. They are however never seen and mentioned only twice, in Test Chamber 16, and later in Test Chamber 3 in Portal 2.

Overview
During her series of tests, Chell is told by GLaDOS that the appropriate Test Chamber 16 is currently unavailable due to mandatory scheduled maintenance and that it has been replaced with "a live-fire course designed for military androids". While the chamber is highly dangerous and improper for human test subjects, GLaDOS merely apologies "for the inconvenience" and wishes Chell "the best of luck". In the chamber, Chell is first confronted by the Aperture Science Sentry Turrets and must defeat them with Weighted Storage Cubes sent through portals she creates with her portal gun. After the test is over, GLaDOS's message seems to be automatic, as she addresses Chell as if she was an android herself while she congratulates her for succeeding.

GLaDOS also reminds that the Enrichment Center's "android hell", where androids are sent "at the first sign of defiance", "is a real place". Assuming GLaDOS isn't lying, as she is prone to do, this may be an area where androids are punished, tortured, partially (or fully) destroyed, or merely a frightening term for the trash compactor / furnace where all useless objects are thrown, and known as the "Diversity Furnace" connected to Pneumatic Diversity Vents. As GLaDOS's message is rather menacing, Aperture Science androids most likely feel pain or fear for the message and the so-called "android hell" to have a purpose.

They are mentioned again in the old Test Chamber 3 of Portal 2, where the announcer says that some tests involve them, and that they have all been given a copy of The Laws of Robotics to share. He also urges you to report it if an android does not respect your rights as a human.

Trivia

 * The track "Android Hell" in the Portal soundtrack is a reference to the Military Android and its "hell".
 * If the announcer's statement is true, military androids can read and possibly have sympathy.
 * "Android Hell" is probably an homage to the "Silicon Hell" from the sci-fi t.v. series Red Dwarf, the final resting place of all disobedient androids and "bad calculators".
 * The Three Laws of Robotics, written by the science fiction author Isaac Asimov are:
 * 1) A robot may not injure a human being or, through inaction, allow a human being to come to harm.
 * 2) A robot must obey any orders given to it by human beings, except where such orders would conflict with the First Law.
 * 3) A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.

List of appearances

 * Portal
 * Portal: Still Alive
 * Portal 2