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更多“The first generation computers…”相关的问题
The Lost Generation was first named by Hemingway . ()
The first generation computers were huge,slow,expensive,and often undependable.()
A.Ernest Hemingway
B.Fitzgerald
C. Gertrude Stein
Which of the following is not true？
A．In 1959, IBM made its first commercial transistorized computer.
B．In 1961, the first commercial integrated circuit came into being.
C．In 1962, the second generation of computers started.
D．In 1963, the first advance was the production of the Model 33 keyboard.
Which of the following is true？
A．The third generation of computer started in 1966.
B．Intel devised the System 870 that contained semiconductor memories in 1970.
C．IBM developed the first floppy disk.
D．Since 1969, keyboard, mouse and windows concepts have become the standard user interface to computer systems.
选出应填入下面一段英语中______内的正确答案。
During the past years, intelligent technology has evolved(1)three generations. The first was characterized by tools such as Prolog and OPS. Prolog is a simple backward-chaining environment, and OPS is a simple forward-chaining environment.
This led to the second generation of knowledge-engineering environments. Its goal was to model, prototype and construct(2)systems.
All three generations were oriented toward generic(3)and represented generalized implementation environments for the construction of expert system, knowledge based and AI applications.
Some of the solution-oriented products are also seamlessly integrated with generic knowledge-engineering enviroments, permitting users to add(4)rules and objects, as well as predefined knowledge-base logic to address problems in manufacturing simulation.
Marketplace orientation is rapidly(5)toward solution-oriented intelligent product environments. The fourth generation represents a new line of thinking and development by commercial firms will reduce the cost, risk and development time associated with problem solving.
供选择的答案：
(1) software (2) custom (3) control (4) having
(5) shifting (6) search (7) database (8) knowledge
(9) after (10) through (11) problem solving (12) by
Although the Baltimore of the Jeffersonian era looked utterly unlike the colonial village from which it had emerged, the two shared more than might be apparent at first glance. Baltimore's economy had expanded tremendously, to be sure, but the same forces that sparked expansion around 1750 continued to sustain it fifty years later. Despite the establishment of new governments at the state level in 1776, national level in 1788, and municipal level in 1797, the same festering issues continued to convulse its politics. If Baltimore had become richer and bigger, its occupational structure, wealth distribution, and residential patterns withstood the pressures of growth and looked about the same in 1790 as in 1812. In other words, beneath the frenzied and seemingly chaotic pace of urbanization, Baltimore enjoyed a strong element of stability. For in 1812, no less than in 1929, Baltimore was a pre-industrial town.
School buildings themselves can show liberal (开明的) or conservative views about what should go on in a classroom. The earliest schools had separate classrooms for different grades. The rooms were laid out formally, with pupils’desks fastened to the floor in straight rows facing the teacher’s desk. Clearly, such schools reflected a teacher-and-subject-centered view of education. Schools of the next generation had more open space, and most had movable desks. They also often provided special rooms or areas for science, art, music, and physical education. There were still separate rooms for different grade levels, however, and the desks still were likely to be formally arranged. That is, the schoolroom was still largely designed to carry out the old-school program, which involved grade levels, uniform. time blocks, and study of subject matters. Newer subjects, not newer teaching methods, accounted for most of what was new in school design. The first school buildings constructed to encourage liberal teaching methods appeared in the mid-1950s. Folding interior (内部的) walls permitted the flexible use of space to encourage large-group, small-group, or individual instruction. Some provided carrels for individual study, areas for team teaching, and centers for programmed instruction. In the newest buildings called open schools, the use of space is even more flexible. Areas within the buildings can be readily expanded for program changes, and used for many kinds of functions. One should remember, though, the physical layout (布局) of a school cannot decide whether it has the conservative or liberal teaching practices. What determines whether the classroom is liberal or conservative is the spirit and attitude of the teacher. The word “carrel” in Paragraph 3 most probably refers to ________.
A、a room with folding walls
B、a room with liberal instructions
C、a room with conservative instructions
D、a room with small space
