Предмет: Математика, автор: НастюшкаΔ

из 50 посеянных семян огурца проросло 40. Сколько процентов семян дали всходы

sladkayagoda1: 50 семян -100% 40 семян- х% х=100*40\50 х=80%

НикитосРаша: помогите и мне с вопросом по истории

Ответы

Автор ответа: getdota100vitusha

40/x=50/100 если 50поделить на 100 тоже самое что 40 на тот процент что получился

5x=400
x=80

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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?

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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.
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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.
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