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On Star Trek, Commander Data is not human, he's an android, not a cyborg. I thought cyborgs looked human (like terminator) but droids looked more robot than human (like C3PO).

Is this an official thing like starships and spaceships, or does it vary from one SciFi work to another?

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  • Related: scifi.stackexchange.com/q/14737/3804
    – AncientSwordRage
    Jan 22 '14 at 20:26
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    everyone knows cyborgs are humans with mechanical enhancements.
    – Firestryke
    Aug 17 at 21:08
  • @Firestryke Can't they also be mechanical robots with biological enhancements?
    – Peter M
    Aug 18 at 14:18
  • @PeterM no, I even double-checked the definition of the word "cyborg" and it is a human with robotic enhancements
    – Firestryke
    Aug 18 at 15:10
  • @Firestryke so then you run smack into a form of the Ship of Theseus. At what point of replacement/enhancement of biological parts does a human stop being a human, and hence no longer a cyborg as per your book definition?
    – Peter M
    Aug 18 at 18:55
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  • Robot is any artificial thing made to do work. Wiki defines it as a "mechanical or virtual intelligent agent that can perform tasks automatically or with guidance, typically by remote control". It's a very generic term.

    Anything can be a robot - from an industrial robot used on an assembly line (pretty much just an arm with a CPU) to human-like android to a spaceship with a computer brain - real (e.g. Buran) or artificial (e.g. V'ger). Though in latter case, they are rarely referred to as "robots" despite fitting the definition 100%.

  • Android (from Late Greek androeidēs - manlike; see andro- , -oid) is a robot resembling a human being (frequently, though not necessarily a very close, ideally undistinguishable resemblance is implied).

    Examples include Star Trek's Data, Star Wars' C3PO (to an extent), or Blade Runner androids.

  • A cyborg, short for "cybernetic organism", is a being with both biological and artificial (e.g. electronic, mechanical or robotic) parts.


A cyborg can be in ANY form, human like or not (in the former case, a cyborg is also classified as "android").

Android can be made using any technology. It can be entirely artificial (like Star Trek's Data) or part biological (which makes it a cyborg).

A robot is a generic term - anything can be a robot. All androids are robots. As interesting aside, the original robots (from Karel Čapek's play R.U.R. - Rossum's Universal Robots) were meant to be human-like, e.g. androids, though the term wasn't created at that point yet.


As usual, a given SciFi author can screw up - intentionally or through ignorance - any definitions and call anything anything he wants. As an example, R2-D2 from Star Wars is called a droid - derivative from "Android" - despite being in the form of trashcan post office box, instead of a human shape.

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    Suggested addition -- And cyborg (cybernetic organism) is a hybrid mechanical & biological organism - a human with robotic parts, for example.
    – Saiboogu
    Feb 13 '12 at 18:57
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    @Saiboogu - you caught me mid-edits :) Feb 13 '12 at 19:06
  • Your answer grew quickly - Should have known better and waited a few before commenting. :)
    – Saiboogu
    Feb 13 '12 at 19:31
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    Android and Cyborg are mutually exclusive. Cyborgs have biological components (usually biological beings augmented with technology), while Androids are purely mechanical.
    – Izkata
    Feb 14 '12 at 1:01
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    @AlanB - I'm fairly certain that was NOT the case historically. Feb 14 '12 at 12:45
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A cyborg is at least partially organic (the "org" part). So a human with grafted cybernetic components is a cyborg. Like Commander Data, The Terminator is NOT a cyborg, as he's robot all the way through. Robocop is a cyborg, being built on a biological human frame.

An android is a robot in the form of a human ("andro" being greek for "man"). Data and Arnold are both androids.

R2D2, while referred to as a "droid", is NOT an android. Whatever is greek for "trash can", he's a that-oid.

Edit: NOT C3PO!! Bad geek! No comic book!

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    you mixed up your Star Wars droids. You meant R2D2 - see my asnwer Feb 13 '12 at 19:07
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    Also, the T-800 terminators had organic skin, not rubber or some other synthetic, which (just barely) qualifies them to be called cyborgs.
    – cjm
    Feb 13 '12 at 19:28
  • @cjm Not sure. Cyborg means "CYBernetic ORGanism", which brings to mind the notion of an underlying living organism which has been enhanced with cybernetic implants or limbs. While I guess you could look at the Terminator as a layer of living skin "enhanced" with an underlying robot, it's probably not how most people would see it. In my opinion, the Terminator is a robot through and through, with a disguise made of living tissue. That subverts the definition of "cyborg".
    – Andres F.
    Jul 29 '13 at 17:47
  • @cjm Put another way: human skin is not an organism, it's just tissue. Contrast it with Robocop: he was a human cop, enhanced with cybernetic implants and armor.
    – Andres F.
    Jul 29 '13 at 17:50
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    @AndresF. Waaaaaay late to the party here, but the Terminator himself refers to himself as "I'm a cybernetic organism. Living tissue over a metal endoskeleton".
    – Peter M
    Aug 17 at 22:05
3

It Depends

  • Androids are humanoid robots, and they typically do not have organic parts. This rule is almost universal across all major franchises.
  • Cyborgs have both organic and robotic components, with the organic components typically belonging to a human or humanoid, but the actual form of the cyborg is not necessarily humanoid itself. Cyborgs normally have an organic control system (brain)
  • Bio-robots have both organic and robotic components, with the organic components typically belonging to a plant, animal, or other non-humanoid life form. Bio-robots normally have a computer control system.
  • Replicant an artificial humanoid that is biological or indistinguishable from being biological.

Despite some conventional differences, both bio-robot and cyborg can be used synonymously. The differences are further muddied by terms like robo-animals, semi-organic robots, or a wide range of other terms used by various authors and settings.

While most of us can agree that a human with robot parts is a cyborg, and a robot with out living parts is an android, the T-800 (AKA: Cyberdyne Systems Model 101) from the Terminator Series seems to be the fringe case that people here don't agree about, because it is a robot grafted with human parts rather than the other way arround.

Many experts would argue it is a bio-robot because of the computer control system, but the Terminator movie itself disagrees:

Kyle Reese: He's not a man - a machine. A Terminator. A Cyberdyne Systems Model 101.

Sarah Connor: A machine? Like a robot?

Kyle Reese: Not a robot. A cyborg. A cybernetic organism.

Since this is scifi.se I would argue that cyborg is the right usage case for something like the T-800 due to its usage in canon, but on if this were biology.se, I would argue that bio-robot is the more correct term due to its usage in various real world contexts. In another setting like Warhammer 40k, something like a T-800 would more rightly be called a servitor or a semi-organic robot.

Another Fringe case are replicants. In the book "Do Androids Dream of Electric Sheep?" they called artificial humans Androids. However, in this case, the franchise latter changed the term to Replicants to avoid confusion when they produced the Blade Runner movies. Another similar case would be the Humanoid Cylons from the Battlestar Gallactica reboot. Here they addressed artificial humans as robots, replicants, or skin jobs despite being virtually indistinguishable from their organic counterparts. They only called the more obviously mechanical Cylons androids. So all in all, it seems the trend of the scifi community is to get away from using the term android to include biological robots, and use the term replicant instead.

Ultimately, these are all pretty new words in the English language, and their definitions and boundary are still fuzzy at best. Real world developments in cybernetics are also having retroactive impacts on the perception of these words. In court cases, arguments have been made about if everything from a person's pacemaker, removable prosthetics, or even cellphones should legally be considered part of their body or property with some claimants saying that all modern people are already cyborgs because we have become so reliant on computers to "function properly".

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androids can still have skin on them like in dragon ball z ,Aliens or some early prototypes of the T-series robots which had rubber skin but they can not have any blood etc or they would be classed as cyborg

the only difference with Arnolds T was he had blood in his skin which makes him cyborg

Robots are anything mechanical with a CPU think of them as the mechanical version of brainwashed zombies puppets if you will

Droids are as you see in star wars C3PO R2-D2 etc these are mechanical robots with an AI that is self aware now yes there is a little debate because the battle droids are commanded through ships etc but for now they are still classed as droids

There is much to learn

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    Just because a robot climbs into a flesh suit does not make it a cyborg. The T-800 is not dependent on any organic components, and most of the ones seen in battle are not covered in flesh. There's no integration between the organic tissue and the mechanical endoskeleton and cybernetic components. The infiltrator model Terminators are given flesh-like coverings. The T-600s were originally coated with rubber. Later on, Skynet developed human-like organic flesh. But these are essentially aesthetic sheaths. Underneath, they're just like the bare-metal hunter-killer Terminators. Jul 29 '13 at 10:45
  • This answer is very low quality, as it is unclear what you are trying to state and brings little to the question. Can you improve this?
    – AncientSwordRage
    Jan 22 '14 at 20:12
  • From askanydifference.com The difference between an Android and Cyborg is that an Android is an actual robot built to make a human life easy, and is made to look like a Homosapien, although some may also have emotions programmed in them. Whereas, a Cyborg is a living organism with some robotic or mechanical parts that extend its capabilities.
    – Sandeep
    Jul 13 '20 at 3:43
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cyborgs are just people with robot parts and they can live without. were as an android is a being made from both organic and machine material that they can not live with out

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  • Welcome to Science Fiction and Fantasy! This answer is very low quality, as it is unclear what you are trying to state and brings little to the question. Can you improve this?
    – AncientSwordRage
    Jan 22 '14 at 20:11
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    Also, you might want to provide some sort of referencing to back up your statements.
    – Valorum
    Jan 22 '14 at 20:22
  • The Bionic Woman (Jamie summers) and the Six Million Dollar Man (Col Steve Austin) are two well known cyborgs since just parts of them both were replaced with bionic limbs or an eye or ear depending on which one you are talking about. There were others also.
    – dean1957
    Aug 17 at 19:24

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