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From Wikipedia, the free encyclopedia

An android.

An android is a robot[1] or synthetic organism[2] designed to look and act like a human. Until recently, androids have largely remained within the domain of science fiction, frequently seen in film and television. However, Honda and several other corporations and private enterprises have developed impressive androids although there is a long way to go to make them fully human like.



The word derives from ανδρός, the genitive of the Greek ανήρ anēr, meaning "man", and the suffix -eides, used to mean "of the species; alike" (from eidos, "species"). Though the word derives from a gender-specific root, its usage in English is usually gender neutral. The term was first mentioned by St. Albertus Magnus in 1270[3] and was popularized by the French writer Villiers in his 1886 novel L'Ève future, although the term "android" appears in US patents as early as 1863 in reference to miniature human-like toy automatons.[4]

The term "droid", invented by George Lucas in Star Wars (1977) but now used widely within science fiction, originated as an abbreviation of "android", but has been used by Lucas and others to mean any robot, including distinctly non-humaniform machines like R2-D2. Another abbreviation, "andy", coined as a pejorative by writer Philip K. Dick in his novel Do Androids Dream of Electric Sheep?, has seen some limited further currency, e.g., in the TV series Total Recall 2070.[5]


Androids have been mainly an element of science fiction, yet it is increasingly becoming a reality in Japan and South Korea. The two countries are in a heated competition to make them a commercial success in the global market[6] and have developed a handful of successful androids so far.


DER 01, a Japanese actroid.

The Intelligent Robotics Lab, directed by Hiroshi Ishiguro at Osaka University, and Kokoro Co., Ltd. have demonstrated the Actroid at Expo 2005 in Aichi Prefecture, Japan. In 2006, Kokoro Co. developed a new DER 2 android. The height of the human body part of DER2 is 165 cm. There are 47 mobile points. DER2 can not only change its expression but also move its hands and feet and twist its body. The "air servosystem" which Kokoro Co. developed originally is used for the actuator. As a result of having an actuator controlled precisely with air pressure via a servosystem, the movement is very fluid and there is very little noise. DER2 realized a slimmer body than that of the former version by using a smaller cylinder. Outwardly DER2 has a more beautiful proportion. Compared to the previous model, DER2 has thinner arms and a wider repertoire of expressions. The smoothness of her movement has also been improved, making it now even more likely for the uninitiated to confuse her with an actual human being.[citation needed] Once programmed, she is able to choreograph her motions and gestures with her voice.

The Intelligent Mechatronics Lab, directed by Hiroshi Kobayashi at the Tokyo University of Science, has developed an android head called Saya, which was exhibited at Robodex 2002 in Yokohama, Japan. There are several other initiatives around the world involving humanoid research and development at this time, which will hopefully introduce a broader spectrum of realized technology in the near future. Now Saya is working at the Science University of Tokyo as a guide.

The Waseda University (Japan) and NTT Docomo's manufacturers have succeeded in creating a shape-shifting robot WD-2. It is capable of changing its face. At first, the creators decided the positions of the necessary points to express the outline, eyes, nose, and so on of a certain person. The robot expresses his/her face by moving all points to the decided positions, they say. The first version of the robot was first developed back in 2003. After that, a year later, they made a couple of major improvements to the design. The robot features an elastic mask made from the average head dummy. It uses a driving system with a 3DOF unit. The WD-2 robot can change its facial features by activating specific facial points on a mask, with each point possessing three degrees of freedom. This one has 17 facial points, for a total of 56 degrees of freedom. As for the materials they used, the WD-2's mask is fabricated with a highly elastic material called Septom, with bits of steel wool mixed in for added strength. Other technical features reveal a shaft driven behind the mask at the desired facial point, driven by a DC motor with a simple pulley and a slide screw. Apparently, the researchers can also modify the shape of the mask based on actual human faces. To "copy" a face, they need only a 3D scanner to determine the locations of an individual's 17 facial points. After that, they are then driven into position using a laptop and 56 motor control boards. In addition, the researchers also mention that the shifting robot can even display an individual's hair style and skin color if a photo of their face is projected onto the 3D mask.


EveR-2, the first android in the world that has the ability to sing.

KITECH researched and developed EveR-1, an android interpersonal communications model capable of emulating human emotional expression via facial "musculature" and capable of rudimentary conversation, having a vocabulary of around 400 words. She is 160 cm tall and weighs 50 kg, matching the average figure of Korean women in their twenties. EveR-1's name derives from the Biblical Eve, plus the letter r for robot. EveR-1's advanced computing processing power enables speech recognition and vocal synthesis, at the same time processing lip synchronization and visual recognition by 90-degree micro-CCD cameras with face recognition technology. An independent microchip inside her artificial brain handles gesture expression, body coordination, and emotion expression. Her whole body is made of highly advanced synthetic jelly silicon and with 60 artificial joints in her face, neck, and lower body; she is able to demonstrate realistic facial expressions and sing while simultaneously dancing. In South Korea, the Ministry of Information and Communication has an ambitious plan to put a robot in every household by 2020.[7] Several robot cities have been planned for the country: the first will be built in 2009 at a cost of 500 billion won, of which 50 billion is direct government investment.[8] The new robot city will feature research and development centers for manufacturers and part suppliers, as well as exhibition halls and a stadium for robot competitions. The country's new Robotics Ethics Charter will establish ground rules and laws for human interaction with robots in the future, setting standards for robotics users and manufacturers, as well as guidelines on ethical standards to be programmed into robots to prevent human abuse of robots and vice versa.[9]

United States

Hanson Robotics, Inc., of Texas and KAIST produced an android portrait of Albert Einstein, using Hanson's facial android technology mounted on KAIST's life-size walking bipedal robot body. This Einstein android, also called "Albert Hubo", thus represents the first full-body walking android in history (see video at [10]). Hanson Robotics, the FedEx Institute of Technology,[11] and the University of Texas at Arlington also developed the android portrait of sci-fi author Philip K. Dick (creator of Do Androids Dream of Electric Sheep?, the basis for the film Blade Runner), with full conversational capabilities that incorporated thousands of pages of the author's works.[12] In 2005, the PKD android won a first place artificial intelligence award from AAAI.

Usage and distinctions

Unlike the terms "robot" (a "mechanical" being) and cyborg (a being that is partly organic and partly mechanical), the word "android" has been used in literature and other media to denote several different kinds of artificially constructed beings:

  • a robot that closely resembles a human
  • an artificially or synthetically created being that closely resembles a human; also referred to in many series (mostly anime) as Bio Android
  • any machine that mimics a human

Although human morphology is not necessarily the ideal form for working robots, the fascination in developing robots that can mimic it can be found historically in the assimilation of two concepts: simulacra (devices that exhibit likeness) and automata (devices that have independence).

The term android was popularized by the French author Auguste Villiers de l'Isle-Adam in his work Tomorrow's Eve (1886), featuring an artificial humanlike robot named Hadaly. As said by the officer in the story, "In this age of Realien advancement, who knows what goes on in the mind of those responsible for these mechanical dolls."

Although Karel Čapek's robots in R.U.R. (Rossum's Universal Robots) (1921) - the play that introduced the word robot to the world - were organic artificial humans, the word "robot" has come to primarily refer to mechanical humans, animals, and other beings. The term "android" can mean either one of these, while a cyborg ("cybernetic organism" or "bionic man") would be a creature that is a combination of organic and mechanical parts.

The word "android" is a combination of Ancient Greek andros and the suffix -oid, which literally means "in the form of a man (male human being)". This could be contrasted with the more general term "anthropoid", which means humanlike. According to this fashion, a female human-like robot would be a "gynoid".


Data from Star Trek, a fictional android.

Androids are a staple of science fiction. Authors have used the term android in more diverse ways than robot or cyborg. In some fictional works, the difference between a robot and android is only their appearance, with androids being made to look like humans on the outside but with robot-like internal mechanics. In other stories, authors have used the word "android" to mean a wholly organic, yet artificial, creation. Other fictional depictions of androids fall somewhere in between.

One thing common to most fictional androids, though, is that the real-life technological challenges associated with creating thoroughly human-like robots – such as the creation of strong artificial intelligence – are assumed to have been solved.[13] Fictional androids are generally depicted as mentally and physically equal or superior to humans – moving, thinking and speaking as fluidly as them.[13]

The tension between the nonhuman substance and the human appearance – or even human ambitions – of androids is the dramatic impetus behind most of their fictional depictions.[13] Some android heroes seek, like Pinocchio, to become human, as in the films Bicentennial Man and A.I. Artificial Intelligence[13], or Data in the science-fiction show Star Trek: The Next Generation. Others, as in the film Westworld, rebel against abuse by careless humans.[13] Android hunter Deckard in American writer Philip K. Dick's Do Androids Dream of Electric Sheep? discovers that his targets are, in some ways, more human than he is.[13] Android stories, therefore, are not essentially stories "about" androids; they are stories about the human condition and what it means to be human.[13]

One aspect of writing about the meaning of humanity is to use discrimination against androids as a mechanism for exploring racism in society, as in Do Androids Dream of Electric Sheep? and its film adaptation Blade Runner.[14] Perhaps the clearest example of such an exploration is John Brunner's 1968 novel Into the Slave Nebula, where the blue-skinned android slaves are explicitly shown to be fully human.[15] More recently, the androids Lance Bishop and Annalee Call in the films Aliens and Alien Resurrection are used as vehicles for exploring how humans deal with the presence of an "Other".[16]

Female androids, or "gynoids", are often seen in science fiction, and can be viewed as a continuation of the long tradition of men attempting to create the stereotypical "perfect woman".[17] Examples include the Greek myth of Pygmalion, the fembots in the Austin Powers series, and the female robot Maria in Fritz Lang's Metropolis. Some gynoids, like Pris in Blade Runner, are designed as sex-objects, with the intent of "pleasing men's violent sexual desires".[18] Fiction about gynoids or female cyborgs has therefore been described as reinforcing "essentialist ideas of femininity",[19] although others have suggested that the treatment of female androids is a way of exploring racism and misogyny in society.[20]

See also


  1. ^ Van Riper, A. Bowdoin (2002). Science in popular culture: a reference guide. Westport: Greenwood Press. p. 10. ISBN 0–313–31822–0. 
  2. ^ Dinello, Daniel (2005). Technophobia!: Science Fiction Visions of Posthuman Technology. University of Texas Press. p. 109. 
  3. ^ "Intelligence in the Making". Harvard University. Retrieved 2007-01-07. 
  4. ^ "U.S. Patent and Trademark Office, Patent# 40891, Toy Automation". Google Patents. Retrieved 2007-01-07. 
  5. ^ "Rough Whimper of Insanity". Levin, Drew S. (exec. prod.). Total Recall 2070. Channel Zero. CHCH-TV, Toronto. February 23, 1999. No. 7, season 1. 2:10 minutes in.
  6. ^
  7. ^
  8. ^
  9. ^
  10. ^ Einstein Video
  11. ^ FedEx Institute of Technology :: FedEx Institute of Technology :: University of Memphis
  12. ^ About the Philip K Dick Android
  13. ^ a b c d e f g Van Riper, op.cit., p. 11.
  14. ^ Dinello, op. cit., p 76.
  15. ^ D'Ammassa, Don (2005). Encyclopedia of Science Fiction. Facts on File. p. 58. ISBN 9780816059249. 
  16. ^ Nishime, LeiLani (Winter 2005). "The Mulatto Cyborg: Imagining a Multiracial Future". Cinema Journal (University of Texas Press) 44 (2): 34–49. 
  17. ^ Melzer, Patricia (2006). Alien Constructions: Science Fiction and Feminist Thought. University of Texas Press. p. 202. ISBN 9780292713079. 
  18. ^ Melzer, p. 204
  19. ^ Grebowicz, Margret; L. Timmel Duchamp, Nicola Griffith, Terry Bisson (2007). SciFi in the mind's eye: reading science through science fiction. Open Court. p. xviii. ISBN 9780812696301. 
  20. ^ Dinello, op. cit., p 77.


  • Kerman, Judith B. (1991). Retrofitting Blade Runner: Issues in Ridley Scott's Blade Runner and Philip K. Dick's Do Androids Dream of Electric Sheep? Bowling Green, OH: Bowling Green State University Popular Press. ISBN 0-87972-509-5.
  • Perkowitz, Sidney (2004). Digital People: From Bionic Humans to Androids. Joseph Henry Press. ISBN 0-309-09619-7.
  • Shelde, Per (1993). Androids, Humanoids, and Other Science Fiction Monsters: Science and Soul in Science Fiction Films. New York: New York University Press. ISBN 0-8147-7930-1.

Further reading

  • Carpenter, J. (2009). Why send the Terminator to do R2D2s job?: Designing androids as rhetorical phenomena. Proceedings of HCI 2009: Beyond Gray Droids: Domestic Robot Design for the 21st Century. Cambridge, UK. Sept. 1.
  • Telotte, J.P. Replications: A Robotic History of the Science Fiction Film. University of Illinois Press, 1995.

External links


Up to date as of January 15, 2010

Definition from Wiktionary, a free dictionary

See also android


German Wikipedia has an article on:

Wikipedia de


Android m. (genitive Androiden, plural Androiden)

  1. android


Up to date as of January 23, 2010

From Wikibooks, the open-content textbooks collection


  • Introduction
  • Getting Started
  • Hello Android
  • Low Level Graphics

1 Introduction

1.1 What is Android?

Android is a software stack for mobile devices that includes an operating system, middleware and key applications. The Android SDK provides the tools and the APIs necessary to begin developing applications on the Android platform. Applications are written using the Java programming language and run on Dalvik, a custom virtual machine specifically designed for embedded use. Dalvik runs on top of a stripped down Linux kernel. Android was originally developed by Google and unveiled to the developer community on 5th November 2007. Android was designed to be distributed based on an open source license and to compete against other mobile platforms, including those from Microsoft, Research In Motion and Apple Inc. Google also announced the founding of the Open Handset Alliance (OHA), a consortium of 47 technology companies devoted to advancing open standards for mobile devices. Android isn’t currently completely open source but a large portion of it is. Google and the OHA is committed to eventually making Android 100% open source. The first commercially available mobile device running Android is T-Mobile’s G1 smart phone. The G1 became available on the 22nd of October 2008. OHA includes members such as Sony Ericsson, Motorola, LG, Samsung and HTC who between them account for close to 50% of all handsets being manufactured. The future for Android definitely looks very bright.

1.2 Architectural Overview

The Android environment is built on top of a Linux kernel and includes a set of C/C++ libraries, the Android Runtime environment, an Application Framework and a set of core applications as described in the diagram below.

Linux Kernel At the base of the Android environment is a stripped down Linux Kernel. The current release of the environment uses Linux kernel version 2.6. Linux is used to communicate with the mobile phone’s hardware and Android supports multiple phone processors. Much of the Android work though happens in the layers above the OS.

Android Runtime The Android runtime environment consists of a set of core libraries and virtual machine. The core libraries provide most of the functionality available in the core libraries of the Java programming language.

On conventional computing devices software runs directly on the operating system kernel but an Android application runs in its own process, with its own instance of the Dalvik virtual machine. Dalvik has been written so that a mobile device can run multiple instances of it in an efficient manner. Dalvik is not your typical JVM though it’s very similar. The Dalvik VM executes files in the Dalvik Executable (.dex) format which is optimized for minimal memory footprint. The VM is register-based, and runs classes compiled by a Java language compiler that have been transformed into the .dex format by the included "dx" tool.

The Dalvik VM relies on the Linux kernel for underlying functionality such as threading and low-level memory management.

Libraries Android includes a set of C/C++ libraries used by various components of the Android system. These capabilities are exposed to developers through the Android application framework. Some of the core libraries are listed below:

• System C library - a BSD-derived implementation of the standard C system library (libc), tuned for embedded Linux-based devices • Media Libraries - based on PacketVideo's OpenCORE; the libraries support playback and recording of many popular audio and video formats, as well as static image files, including MPEG4, H.264, MP3, AAC, AMR, JPG, and PNG • Surface Manager - manages access to the display subsystem and seamlessly composites 2D and 3D graphic layers from multiple applications • LibWebCore - a modern web browser engine which powers both the Android browser and an embeddable web view • SGL - the underlying 2D graphics engine • 3D libraries - an implementation based on OpenGL ES 1.0 APIs; the libraries use either hardware 3D acceleration (where available) or the included, highly optimized 3D software rasterizer • FreeType - bitmap and vector font rendering • SQLite - a powerful and lightweight relational database engine available to all applications

Application Framework Developers have full access to the same framework APIs used by the core applications. The application architecture is designed to simplify the reuse of components; any application can publish its capabilities and any other application may then make use of those capabilities (subject to security constraints enforced by the framework). This same mechanism allows components to be replaced by the user.

Underlying all applications is a set of services and systems, including:

• A rich and extensible set of Views that can be used to build an application, including lists, grids, text boxes, buttons, and even an embeddable web browser • Content Providers that enable applications to access data from other applications (such as Contacts), or to share their own data • A Resource Manager, providing access to non-code resources such as localized strings, graphics, and layout files • A Notification Manager that enables all applications to display custom alerts in the status bar • An Activity Manager that manages the life cycle of applications and provides a common navigation back-stack

Applications Android ships with a set of core applications including an email client, SMS program, calendar, maps, browser and others. All applications are written using the Java programming language syntax. A java application written for Android is not compatible with Java programs written for the Java SE and Java ME platforms.

Simple English

Androids are robots that bare look very similar to humans. In TV shows and movies, they are usually represented by human actors without special effects, while robots are usually shown clunky or in suits or makeup.

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