Creeper (program)
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Creeper was the first computer worm, while Reaper was the first
antivirus Antivirus software (abbreviated to AV software), also known as anti-malware, is a computer program used to prevent, detect, and remove malware. Antivirus software was originally developed to detect and remove computer viruses, hence the nam ...
software, designed to eliminate Creeper.


Creeper

Creeper was an experimental computer program written by Bob Thomas at BBN in 1971. Its original iteration was designed to move between DEC
PDP-10 Digital Equipment Corporation (DEC)'s PDP-10, later marketed as the DECsystem-10, is a mainframe computer family manufactured beginning in 1966 and discontinued in 1983. 1970s models and beyond were marketed under the DECsystem-10 name, especi ...
mainframe computer A mainframe computer, informally called a mainframe or big iron, is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterpris ...
s running the TENEX operating system using the
ARPANET The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first networks to implement the TCP/IP protocol suite. Both technologies became the technical fou ...
, with a later version by
Ray Tomlinson Raymond Samuel Tomlinson (April 23, 1941 – March 5, 2016) was an American computer programmer who implemented the first email program on the ARPANET system, the precursor to the Internet, in 1971; It was the first system able to send mail be ...
designed to copy itself between computers rather than simply move. This self-replicating version of Creeper is generally accepted to be the first computer worm. Creeper was a test created to demonstrate the possibility of a self-replicating computer program that could spread to other computers. The program was not actively
malicious software Malware (a portmanteau for ''malicious software'') is any software intentionally designed to cause disruption to a computer, server, client, or computer network, leak private information, gain unauthorized access to information or systems, ...
as it caused no damage to data, the only effect being a message it output to the teletype reading "I'M THE CREEPER. CATCH ME IF YOU CAN!"From the first email to the first YouTube video: a definitive internet history
Tom Meltzer and Sarah Phillips. ''
The Guardian ''The Guardian'' is a British daily newspaper. It was founded in 1821 as ''The Manchester Guardian'', and changed its name in 1959. Along with its sister papers ''The Observer'' and ''The Guardian Weekly'', ''The Guardian'' is part of the Gu ...
''. 23 October 2009


Reaper

Reaper was the first anti-virus software, designed to delete Creeper by moving across the ARPANET. It was created by
Ray Tomlinson Raymond Samuel Tomlinson (April 23, 1941 – March 5, 2016) was an American computer programmer who implemented the first email program on the ARPANET system, the precursor to the Internet, in 1971; It was the first system able to send mail be ...
in 1972.


Cultural impact

The conflict between Creeper and Reaper served as inspiration for the
programming game A programming game is a video game that incorporates elements of computer programming, enabling the player to direct otherwise autonomous units within the game to follow commands in a domain-specific programming language, often represented as a v ...
''
Core War ''Core War'' is a 1984 programming game created by D. G. Jones and A. K. Dewdney in which two or more battle programs (called "warriors") compete for control of a virtual computer. These battle programs are written in an abstract assembly langua ...
'', while fictionalized versions of Reaper have been used as antagonists in the
anime is Traditional animation, hand-drawn and computer animation, computer-generated animation originating from Japan. Outside of Japan and in English, ''anime'' refers specifically to animation produced in Japan. However, in Japan and in Japane ...
''
Digimon Tamers is a Japanese anime television series and the third television series in the ''Digimon'' franchise, produced by Toei Animation. The series takes place in a new setting separate from the preceding series, ''Digimon Adventure'' and ''Digimon ...
'' and the
visual novel A , often abbreviated as VN, is a form of digital semi-interactive fiction. Visual novels are often associated with and used in the medium of video games, but are not always labeled as such themselves. They combine a textual narrative with sta ...
'' Digital: A Love Story''. A humanized Creeper has also appeared in the
webcomic Webcomics (also known as online comics or Internet comics) are comics published on a website or mobile app. While many are published exclusively on the web, others are also published in magazines, newspapers, or comic books. Webcomics can be co ...
Internet Explorer, alongside the likewise personified Morris Worm.


References

ARPANET Computer viruses Computer-related introductions in 1971 {{malware-stub