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помогите, пожалуйста!
задание во вложениях
заранее спасибо!
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Предмет:
Геометрия -
Автор:
isabellar4q0 - 5 лет назад
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Ответы 1
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Ответ:
Объяснение: центр основания-точка О
проведем через О отрезок А1Н1 тогда в параллельной нижней грани сечение пройдет через АН
искомое сечение прямоугольник А1Н1НА
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Автор:
kaylin - 5 лет назад
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0
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ответьте на вопросы по тексту "100 баллов"
ВОПРОСЫ
1) What is a software?
2) In what two basic groups software (programs) could be divided?
3) What is system software for?
4) What is an operating system — system or applica tion software?
5) What is a «driver»?
6) What is application software?
7) What are application software for?
8) What is the tendency in application software mar ket in recent years?
9) What is the application of the communication soft ware?
Текст
«TYPES of SOFTWARE»
A computer to complete a job requires more than just we see and touch. It requires Software - programs for directing the operation of a computer or electronic data.
Software is the final computer system component. These computer programs instruct the hardware how to conduct processing. The computer is merely a general-purpose machine which requires specific software to perform a given task. Computers can input, calculate, compare and output data as information. Software determines the order in which these operations are performed.
Programs usually fall in one of two categories: system software and application software.
System software controls standard internal computer activities. An operating system, for example, is a collection of system programs that aid in the operation of a computer regardless of the application software being used. When a computer is first turned-on, one of the system programs is booted or loaded into the computers memory. This software contains information about memory capacity, the model of the processor, the disk drives to be used, and more. Once the system software is loaded, the applications software can be brought in.
System programs are designed for the specific pieces of hardware. These programs are called drivers and coordinate peripheral hardware and computer activities. User needs to install a specific driver in order to activate a peripheral device. For example, if you intend to buy a printer or a scanner you need to worry in advance about the driver program which, though, commonly goes along with your device. By installing the driver you «teach» your mainboard to «understand» the newly attached part.
Application software satisfies your specific need. The developers of application software rely mostly on marketing research strategies trying to do their best to attract more users (buyers) to their software. As productivity of the hardware has increased greatly in recent years, the programmers nowadays tend to include as much as possible in one program to make software interface look more attractive to the user. These class of programs is the most numerous and perspective from the marketing point of view.
Data communication within and between computer systems is handled by system software. Communication software transfers data from one computer system to another. These programs usually provide users with data security and error checking along with physically transferring data between the two computers’ memories. During the past five years the developing electronic network communication has stimulated more and more companies to produce various communication software, such as Web-Browsers for Internet.-
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