Reflect on the current vogue in zombie material and you find ample demonstration of the extent to which film and television favour a certain number of recurrent elements or motifs. Vampires are another prominent example, which makes two before we even leave the shambling hordes of the un-dead. Broaden those horizons to the world of the living and one cannot but acknowledge the important contributions made by the ever-dependable mob organisation, international terrorist cell, or simple garden-variety psychopath. Entire genres have been built up around archetypes such as these, while for others it must be said that only specific genres afford the conditions necessary for them to function successfully. Zombies, for instance, are unlikely to ever transcend their origins as fodder in B-grade horror fare. Indeed, it is significant that those films which have managed to lead the zombie astray successfully – such as Shaun of the Dead – have been able to do so only through spoofing their typical treatment, rather than truly departing from it. In other words, it's unusual that we find a movie or television show which makes use of zombies as a bit-part. There are no sitcoms – that I'm familiar with, at least – which feature a bunch of hip twenty-somethings and their quirky zombie neighbour. When something features zombies, it's generally going to be en masse, and very much the central concern.
Such is not the case with all of film and television's favourite recurrent staples. Aliens, for instance, have managed to ingratiate themselves into virtually every genre, and with great success. Otherworldly life-forms can be found in anything from horror and action/thriller, sitcoms and drama, all the way through to comedy and children's programs. Those not convinced need only look to the box-office records for the month of June 1982, which saw the feel-good alien capers of Steven Spielberg's E.T.: The Extra-Terrestrial rubbing intergalactic shoulders with the tentacled horror of John Carpenter's The Thing. Very few staples of the industry show such versatility. As fate would have it, that same month in 1982 saw one of the few exceptions represented in the form of Blade Runner, a pivotal moment in the cinematic exploration of robots. Like aliens, robots have transcended their original role as a staple of the science-fiction genre to become a popular element in film and television at large. There is no doubt, in either case, that the key to this success lies in their versatility. Just as aliens can look and behave in almost any way conceivable, there is virtually no limit to the possible forms or functions that might dictate the role played by some mechanical creation, not merely in a practical sense, but in terms of tone and narrative role as well. Compare Fritz Lang's Metropolis with the likes of The Jetsons, or again with Transformers and already you see the wide range of potential uses.
Where these two phenomena differ, however, is in the proliferation of sub-types and techno-jargon. For unlike an alien organism, which is a fairly simple and all-encompassing concept, the technical nature of robotics has come to be reflected in a highly nuanced field of nomenclature. How does an android differ to a cyborg? Does a powered exoskeleton qualify as a robot? Where do the boundaries occur between something engineered mechanically and an organic equivalent? This article hopes to shed some light on these issues, offering a compromise between pragmatic definitions and practical ones.
Such is not the case with all of film and television's favourite recurrent staples. Aliens, for instance, have managed to ingratiate themselves into virtually every genre, and with great success. Otherworldly life-forms can be found in anything from horror and action/thriller, sitcoms and drama, all the way through to comedy and children's programs. Those not convinced need only look to the box-office records for the month of June 1982, which saw the feel-good alien capers of Steven Spielberg's E.T.: The Extra-Terrestrial rubbing intergalactic shoulders with the tentacled horror of John Carpenter's The Thing. Very few staples of the industry show such versatility. As fate would have it, that same month in 1982 saw one of the few exceptions represented in the form of Blade Runner, a pivotal moment in the cinematic exploration of robots. Like aliens, robots have transcended their original role as a staple of the science-fiction genre to become a popular element in film and television at large. There is no doubt, in either case, that the key to this success lies in their versatility. Just as aliens can look and behave in almost any way conceivable, there is virtually no limit to the possible forms or functions that might dictate the role played by some mechanical creation, not merely in a practical sense, but in terms of tone and narrative role as well. Compare Fritz Lang's Metropolis with the likes of The Jetsons, or again with Transformers and already you see the wide range of potential uses.
Where these two phenomena differ, however, is in the proliferation of sub-types and techno-jargon. For unlike an alien organism, which is a fairly simple and all-encompassing concept, the technical nature of robotics has come to be reflected in a highly nuanced field of nomenclature. How does an android differ to a cyborg? Does a powered exoskeleton qualify as a robot? Where do the boundaries occur between something engineered mechanically and an organic equivalent? This article hopes to shed some light on these issues, offering a compromise between pragmatic definitions and practical ones.
. : Mechanoid : .
[from “mechanical” – bearing the qualities of a machine, and “-id” – of or pertaining to]

. : Exempla
Pinocchio – Pinocchio
Daleks – Doctor Who
Talos – Argonautica
. : Mech / Mecha : .
[an abbreviated form of “mechanoid”]
[an abbreviated form of “mechanoid”]

. : Exempla
Tripods – War of the Worlds
Rosenburg – Men in Black
Tripods – War of the Worlds
Rosenburg – Men in Black
Gladiators – Robot Jox
. : Exosuit : .
[from “exo-” – outer or external, and “suit” – something worn, conforming to the wearer]
[from “exo-” – outer or external, and “suit” – something worn, conforming to the wearer]

. : Exempla
APUs – The Matrix: Revolutions
Marauder – Starship Troopers
Powerloader – Aliens
APUs – The Matrix: Revolutions
Marauder – Starship Troopers
Powerloader – Aliens
. : Robot : .
[from the Czech “robota” – compulsory labour, or “robotnik” – indentured labourer]

. : Exempla
The Iron Giant – The Iron Giant
Johnny Five – Short Circuit
R2-D2 – Star Wars
The Iron Giant – The Iron Giant
Johnny Five – Short Circuit
R2-D2 – Star Wars
. : Android : .
[from the Ancient Greek “andros” – man, and “-id” – of or pertaining to]
[from the Ancient Greek “andros” – man, and “-id” – of or pertaining to]

. : Exempla
C-3PO – Star Wars
Astro – Astro Boy
Data – Star Trek
C-3PO – Star Wars
Astro – Astro Boy
Data – Star Trek
. : Synthetic : .
[from the Ancient Greek “sunthetos” – combined, or “sunthetikos” – one who combines]
[from the Ancient Greek “sunthetos” – combined, or “sunthetikos” – one who combines]

. : Exempla
Proto – Ghost in the Shell: SAC
SID 6.7 – Virtuosity
Ash – Alien
Proto – Ghost in the Shell: SAC
SID 6.7 – Virtuosity
Ash – Alien
. : Replicant : .
[from "replica" – a copy or reproduction, "-ant"– in the capacity of]

A sub-class of android, defined by their emulation not only of the human form, but of molecular human biology, rendering them effectively indistinguishable from natural human beings. While the term 'replicant' itself is rarely used outside of its original context in the film Blade Runner, there are sufficient examples shown in other material to warrant their place as a parallel class to that of synthetics. Rather than being an artificial analogue of human biology, replicants are consciously intended to mimic human beings all the way down to a microscopic level. What physical engineering their creation entails is performed on a genetic level, with the subsequent manufacturing process being virtually identical to organic growth. As such, replicants occupy a grey area that verges onto other technology, most notably cloning. The crucial distinction between the two typically hinges on a combination of psychological inadequacy – with replicants lacking some basic elements of the human empathic response – and an inability to procreate. Like some clones, however, replicants often show greatly enhanced physical abilities, and are often unaware of their own artificial status.
. : Exempla
The Thirteen – Battlestar Galactica
Roy Batty – Blade Runner
Bioroids – Appleseed
The Thirteen – Battlestar Galactica
Roy Batty – Blade Runner
Bioroids – Appleseed
. : Gynoid : .
[from the Ancient Greek “gyne” – woman, and “-id” – of or pertaining to]
[from the Ancient Greek “gyne” – woman, and “-id” – of or pertaining to]

. : Exempla
Prototypes – Ghost in the Shell: Innocence
Buffybot – Buffy: The Vampire Slayer
Zhora – Blade Runner
Prototypes – Ghost in the Shell: Innocence
Buffybot – Buffy: The Vampire Slayer
Zhora – Blade Runner
. : Cyborg : .
[contraction of “cybernetic” – possessing systematic control, and “organism” – a life-form]
[contraction of “cybernetic” – possessing systematic control, and “organism” – a life-form]
Generally accepted as something which displays aspects of both organic and artificial systems. The vague nature of this definition, however, lends itself to three distinct interpretations, each of which can be placed within the categories of mechanoid, robot, and android respectively:

. : Exempla
Alex Murphy – RoboCop.
Alex Murphy – RoboCop.
. : Type II - A robotic species that bears all the hallmarks of organic life. This variation is perhaps the least common, and derives from a liberal interpretation of the term 'organism'. This requires that the unit in question not only present mechanical analogues for the organic processes of consuming matter or energy in order to maintain their autonomy, but also be able to perpetuate their own kind through some form of inherent procreation. This does not include the ability to simply produce a copy by making use of a typical production line. As such, this variety of cyborg occupies a grey area between robots and an alien species which just happens to be composed of what we recognise as machinery.
. : Exempla
Autobots/Decepticons – Transformers
Autobots/Decepticons – Transformers
. : Type III - An android whose physical construction incorporates some percentage of organic componentry. This is not an entirely satisfactory definition in most cases, but is worth addressing for the number of sources where it is openly avouched. The most prominent example is encountered in The Terminator, where Kyle Reese refers to the T-800 unit as a cyborg, based on the fact that its metallic endoskeleton is housed within organic tissues in order to aid infiltration. The problem with this interpretation is that, while the flesh is undeniably alive in a molecular sense, the same cannot be said for the unit as a whole. Unlike Type I cyborgs there is no continuity from an original organic state, and unlike Type II it fits none of the necessary criteria to be considered a living organism. The issue is effectively sealed later in the film when we see the T-800 able to function perfectly well, albeit without the ability to infiltrate, once all the organic material has been burnt off. As such, it is actually nothing more than a robot encased in a living sheath, the properties of which are advantageous to, but not essential to its functionality.
. : Exempla
T-800 – The Terminator
T-800 – The Terminator
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So there you have it, a hierarchical guide to the complex and fascinating world of artificial entities. And while I have touched on a number of particularly illustrative examples, there are many more popular and imaginative examples out there. So what are some of your favourites, and how would you categorise them according to this hierarchy? Have your say in the comment section below.