1960s - 1970s: Increased Research in Artificial Intelligence (AI)
During the cold war the U.S. tried to ensure that it would stay ahead of the Soviet Union in technological advancements. Therefore in 1963 the Defense Advanced Research Projects Agency (DARPA) granted the Massachusetts Institute of Technology (MIT) U.S.$ 2.2 million for research in machine-aided cognition ( artificial intelligence). The major effect of the project was an increase in the pace of AI research and a continuation of funding.
In the 1960s and 1970s a multitude of AI programs were developed, most notably SHRDLU. Headed by Marvin Minsky the MIT's research team showed, that when confined to a small subject matter, computer programs could solve spatial and logic problems. Other progresses in the field of AI at the time were: the proposal of new theories about machine vision by David Marr, Marvin Minsky's frame theory, the PROLOGUE language (1972) and the development of expert systems.
|
TEXTBLOCK 1/2 // URL: http://world-information.org/wio/infostructure/100437611663/100438659474
|
|
Late 1950s - Early 1960s: Second Generation Computers
An important change in the development of computers occurred in 1948 with the invention of the transistor. It replaced the large, unwieldy vacuum tube and as a result led to a shrinking in size of electronic machinery. The transistor was first applied to a computer in 1956. Combined with the advances in magnetic-core memory, the use of transistors resulted in computers that were smaller, faster, more reliable and more energy-efficient than their predecessors.
Stretch by IBM and LARC by Sperry-Rand (1959) were the first large-scale machines to take advantage of the transistor technology (and also used assembly language instead of the difficult machine language). Both developed for atomic energy laboratories could handle enormous amounts of data, but still were costly and too powerful for the business sector's needs. Therefore only two LARC's were ever installed.
Throughout the early 1960s there were a number of commercially successful computers (for example the IBM 1401) used in business, universities, and government and by 1965 most large firms routinely processed financial information by using computers. Decisive for the success of computers in business was the stored program concept and the development of sophisticated high-level programming languages like FORTRAN (Formular Translator), 1956, and COBOL (Common Business-Oriented Language), 1960, that gave them the flexibility to be cost effective and productive. The invention of second generation computers also marked the beginning of an entire branch, the software industry, and the birth of a wide range of new types of careers.
|
TEXTBLOCK 2/2 // URL: http://world-information.org/wio/infostructure/100437611663/100438659439
|
|
ARPAnet
ARPAnet was the small network of individual computers connected by leased lines that marked the beginning of today's global data networks. Being an experimental network mainly serving the purpose to test the feasibility of wide area networks, the possibility of remote computing, it was created for resource sharing between research institutions, not for messaging services like E-mail. Although research was sponsored by US military, ARPAnet was not designed for directly martial use but to support military-related research.
In 1969 ARPANET went online and links the first two computers, one of them located at the University of California, Los Angeles, the other at the Stanford Research Institute.
But ARPAnet has not become widely accepted before it was demonstrated in action to a public of computer experts at the First International Conference on Computers and Communication in Washington, D. C. in 1972.
Before it was decommissioned in 1990, NSFnet, a network of scientific and academic computers funded by the National Science Foundation, and a separate new military network went online in 1986. In 1988 the first private Internet service providers offered a general public access to NSFnet. Beginning in 1995, after having become the backbone of the Internet in the USA, NSFnet was turned over to a consortium of commercial backbone providers. This and the launch of the World Wide Web added to the success of the global data network we call the Net.
In the USA commercial users already outnumbered military and academic users in 1994.
Despite the rapid growth of the Net, most computers linked to it are still located in the United States.
|
INDEXCARD, 1/2
|
|
IBM
IBM (International Business Machines Corporation) manufactures and develops cumputer hardware equipment, application and sysem software, and related equipment.
IBM produced the first PC (Personal Computer), and its decision to make Microsoft DOS the standard operating system initiated Microsoft's rise to global dominance in PC software.
Business indicators:
1999 Sales: $ 86,548 (+ 7,2 % from 1998)
Market capitalization: $ 181 bn
Employees: approx. 291,000
Corporate website: www.ibm.com
http://www.ibm.com/
|
INDEXCARD, 2/2
|
|