Вопрос № 21417 - Английский язык

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INFORMATION SYSTEMS

1. The future of information systems may be gathered from several areas of current research. As all information carriers (text, video, and sound) can be converted to digital form and manipulated by increasingly sophisticated techniques, the ranges of media, functions, and capabilities of information systems are constantly expanding. Evolving techniques of natural-language processing and understanding, knowledge representation, and neural process modelling have begun to join the more traditional range of methods of content analysis and manipulation. The use of these techniques opens the possibility of receiving new knowledge from existing data.

2. Computer visualisation, a new field that has grown expansively since the early 1990s, deals with the conversion of masses of data coming from instruments, databases, or computer simulations into visual displays - the most efficient method of human information reception, analysis, and exchange.

3. Related to computer visualisation is the research area of virtual reality or virtual worlds, which denotes the generation of synthetic environments through the use of three-dimensional displays and interaction devices. A number of research directions in this area are particularly relevant to future information systems: knowledge-based world modelling; the development of physical analogues for abstract quantitative and organisational data; and search and retrieval in large virtual worlds.

4. Present-day computers are remarkably versatile machines capable of assisting humans in nearly every problem-solving task that involves symbol manipulations. Television, on the other hand, has penetrated societies throughout the world as a noninteractive display device for combined video and audio signals. The forthcoming convergence of three digital technologies - namely, the computer, very-high-definition television (V-HDTV), and data communications - is inevitable. In such a system, a large-screen multimedia display monitor, containing a 64-megabit primary memory and a billion-byte hard disk for data storage and playback, would serve as a computer and, over fibre links, an interactive television receiver.

(Encyclopedia Britannica)
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Today the database has become a central organizing framework for many information systems.

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Information systems have exposed new threats to the modern society.

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Computer networking is the way to develop distributed information systems.

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The computer, television, and data communications will soon become parts of one technology.

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Modern Architecture
1. Modern architecture is the term universally applied to the style of building, which evolved a number of countries after the First World War as the International Style and which has culminated in the current design of glass, concrete and steel based on module construction presently being erected all over the world.
2. In the early 20th century an instinctive desire of architects to break away from the confusions and contrivances of the 19th century, and their efforts to introduce a style which responded to new social needs and exploited new materials led to the changed appearance of buildings; simple rectangular outlines; avoidance of symmetry; absence of applied ornament; flat roofs and white walls, resulting from the use of reinforced concrete, now the favorite material; large windows, which new structural techniques permitted, but which were encouraged also by the spirit of the times, which believed in opening up the interiors of buildings to light and air.
3. Until the 1930s, Germany was the main center of new architecture because of the presence there of a unifying institution, the Bauhaus, a college of design, which became synonymous with modern teaching methods in architecture.
4. In the years after 1945 the emphasis was on town-planning and housing. This was the era of new towns, vast housing estates. In matters of architectural style, it became less a question of conflict between period revival and modern design than between buildings designed for effect and those that aimed at the creation of a modern vernacular and a humane and harmonious environment. The Modern Movement cannot be said to have had a clear historical end. It always exited concurrently with other ways of designing.
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Planned Economies
1. Planned economies are sometimes called «command economies» because the state commands the use of resources that are used to produce goods and services as it owns factories, land and natural resources. Planned economies are economies with a large amount of central planning and direction, when the government takes all the decisions; the government decides production and consumption. Planning of this kind is obviously very difficult and the result is that there is no society, which is completely a command economy. The actual system employed varies from state to state, but command or planned economies have a number of common features.
2. Firstly, the state decides precisely what the nation is to produce. It usually plans five years ahead. It is the intention of the planners that there should be enough goods and services for all. Planners are afraid to produce goods and services unless they are sure substantial amounts will be purchased. This leads to delays and queues for some products.
3. Secondly, industries are asked to comply with these plans and each industry and factory is set a production target to meet. If each factory and farm meets its target, then the state will meet its targets as set out in the five-year plans. You could think of the factory and farm targets to be objectives, which, if met, allow the nation's overall aim to be reached.
4. A major problem faced by command or planned economies is that of deciding what to produce. Command economies tend to be slow when responding to changes in people's tastes and fashions. Planners are likely to underproduce some items as they cannot predict changes in demand. Equally, some products, which consumers regard as obsolete and unattractive, may be overproduced.
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What causes delays and queues for some products?