North Central Positronics or NCP is a fiction

Fiction

Fiction is the form of any narrative or informative work that deals, in part or in whole, with information or events that are not factual, but rather, imaginary—that is, invented by the author. Although fiction describes a major branch of literary work, it may also refer to theatrical,...

al corporation

Corporation

A corporation is created under the laws of a state as a separate legal entity that has privileges and liabilities that are distinct from those of its members. There are many different forms of corporations, most of which are used to conduct business. Early corporations were established by charter...

 in Stephen King

Stephen King

Stephen Edwin King is an American author of contemporary horror, suspense, science fiction and fantasy fiction. His books have sold more than 350 million copies and have been adapted into a number of feature films, television movies and comic books...

's The Dark Tower series

The Dark Tower (series)

The Dark Tower is a series of books written by American author Stephen King, which incorporates themes from multiple genres, including fantasy, science fantasy, horror and western. It describes a "Gunslinger" and his quest toward a tower, the nature of which is both physical and metaphorical. King...

.

Fictional history

North Central Positronics appears in multiple works of Stephen King, in the Dark Tower series and related works. It is a huge corporation which manufactures technologically-advanced items such as robot

Robot

A robot is a mechanical or virtual intelligent agent that can perform tasks automatically or with guidance, typically by remote control. In practice a robot is usually an electro-mechanical machine that is guided by computer and electronic programming. Robots can be autonomous, semi-autonomous or...

s, computer

Computer

A computer is a programmable machine designed to sequentially and automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem...

s, and weapons.

Many of the products are prominent in the Dark Tower

The Dark Tower (series)

The Dark Tower is a series of books written by American author Stephen King, which incorporates themes from multiple genres, including fantasy, science fantasy, horror and western. It describes a "Gunslinger" and his quest toward a tower, the nature of which is both physical and metaphorical. King...

 series, where the few remaining North Central Positronics products still functioning have gone insane, preying upon life and the remnants of civilization

Civilization

Civilization is a sometimes controversial term that has been used in several related ways. Primarily, the term has been used to refer to the material and instrumental side of human cultures that are complex in terms of technology, science, and division of labor. Such civilizations are generally...

. This is related to the phenomenon affecting much of reality; everything is falling apart. As stated in the books, the world has 'moved on'.

By the time it is encountered by Roland and his ka-tet

Ka (Dark Tower)

Ka is a plot element in Stephen King's Dark Tower series. It is a word of the fictional language High Speech.-Overview:In the books, it is a mysterious force that leads all living creatures. It is the will of Gan, the approximate equivalent of destiny or fate, in King's fictional language of High...

, North Central Positronics is part of the Sombra Group

Sombra Corporation

Sombra Corporation is a fictional megacorporation in the Dark Tower series by Stephen King.-Fictional history:Sombra corporation is controlled by the Crimson King. Sombra Corporation rose to power in the late 80s and fully monopolized high-tech R&D and manufacturing for an unknown, but certainly...

, owned by the Crimson King

Crimson King

The Crimson King, also commonly known as Los', is a fictional character created by Stephen King. He is the antagonist in the novel Insomnia the main villain due to a plot twist in Black House and one of the main villains in the latter half of Stephen King's Dark Tower series.-Fictional...

, the personification of Satan

Satan

Satan , "the opposer", is the title of various entities, both human and divine, who challenge the faith of humans in the Hebrew Bible...

 and evil

Evil

Evil is the violation of, or intent to violate, some moral code. Evil is usually seen as the dualistic opposite of good. Definitions of evil vary along with analysis of its root motive causes, however general actions commonly considered evil include: conscious and deliberate wrongdoing,...

 in the world of the Dark Tower. The Crimson King's stated goal is the destruction of the multiverse

Parallel universe (fiction)

A parallel universe or alternative reality is a hypothetical self-contained separate reality coexisting with one's own. A specific group of parallel universes is called a "multiverse", although this term can also be used to describe the possible parallel universes that constitute reality...

/all reality.

Among NCP's creations in the books are dipolar computers, a number of androids and cyborg

Cyborg

A cyborg is a being with both biological and artificial parts. The term was coined in 1960 when Manfred Clynes and Nathan S. Kline used it in an article about the advantages of self-regulating human-machine systems in outer space. D. S...

s and Blaine the Mono

Blaine the Mono

Blaine the Mono is a fictional character appearing in the books The Dark Tower III: The Waste Lands and The Dark Tower IV: Wizard and Glass of Stephen King's Dark Tower series....

, a sentient monorail system that enjoys riddles.

In The Dark Tower: End-World Almanac published by Marvel Comics

Marvel Comics

Marvel Worldwide, Inc., commonly referred to as Marvel Comics and formerly Marvel Publishing, Inc. and Marvel Comics Group, is an American company that publishes comic books and related media...

, one of North Central Positronics' major products is said to be the "Asimov-class robot".