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Man-Computer Symbiosis

"Man-Computer Symbiosis" is the title of a work by J.C.R. Licklider, which was published in 1960.Man-computer symbiosis is a fundamental or key text of the modern computing revolution.The work describes something of Lickliders' vision for a complementary relationship between humans and computers at a potential time of the future. According to Bardini, Licklider envisioned a future time when machine cognition would surpass and become independent of human direction, as a basic stage of development within human evolution. Jacucci gives the description of Lickliders' vision as being the very tight coupling of human brains and computing machines .As a necessary pre-requisite of human-computer symbiosis, Licklider conceived of a thing known as the Thinking centre. Altogether these things were pre-conditions for the development of networks.Streeter identifies as the main empirical element of the work as the time and motion analysis, which is shown under Part 3 of the work. In addition he identified two reasons for Licklider to have considered such a concept as a symbiotic human computer relationship at all as beneficial, to be firstly, for it might bring about an advantage emerging from the use of a computer, such that there are similarities with the necessary methodology of such a use , to the methodology of problem solving through play, and secondarily, because of the advantage which results from using computers in situations of battle. Foster states Licklider sought to promote computer use in order to "augment human intellect by freeing it from mundane tasks."As his personal motivating force, Streeter considers Licklider to be positing an escape from the limitations of the mode of computer use during his time, which was batch processing. Russell thinks Licklider was stimulated by an encounter with the newly developed PDP-1.


J. C. R. Licklider photo

“Present-day computers are designed primarily to solve preformulated problems or to process data according to predetermined procedures. The course of the computation may be conditional upon results obtained during the computation, but all the alternatives must be foreseen in advance. … The requirement for preformulation or predetermination is sometimes no great disadvantage. It is often said that programming for a computing machine forces one to think clearly, that it disciplines the thought process. If the user can think his problem through in advance, symbiotic association with a computing machine is not necessary.
However, many problems that can be thought through in advance are very difficult to think through in advance. They would be easier to solve, and they could be solved faster, through an intuitively guided trial-and-error procedure in which the computer cooperated, turning up flaws in the reasoning or revealing unexpected turns in the solution. Other problems simply cannot be formulated without computing-machine aid. … One of the main aims of man-computer symbiosis is to bring the computing machine effectively into the formulative parts of technical problems.
The other main aim is closely related. It is to bring computing machines effectively into processes of thinking that must go on in "real time," time that moves too fast to permit using computers in conventional ways. Imagine trying, for example, to direct a battle with the aid of a computer on such a schedule as this. You formulate your problem today. Tomorrow you spend with a programmer. Next week the computer devotes 5 minutes to assembling your program and 47 seconds to calculating the answer to your problem. You get a sheet of paper 20 feet long, full of numbers that, instead of providing a final solution, only suggest a tactic that should be explored by simulation. Obviously, the battle would be over before the second step in its planning was begun. To think in interaction with a computer in the same way that you think with a colleague whose competence supplements your own will require much tighter coupling between man and machine than is suggested by the example and than is possible today.”

Man-Computer Symbiosis, 1960

J. C. R. Licklider photo

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