Tell what sentences are true and what are false. 1) A computer system is built from such components

1) A computer system is built from three general components: the hardware, the software, and the applications. 2) When you purchase a computer system, you must have at least hardware. 3) When you turn on your computer, the operating system performs a series of tasks, presented here in chronological order. 4) Various pieces of hardware need to be deleted. 5) When an executing process needs to use some hardware, the operating system provides access for the process. 6) All computers use the same operating systems. 7) The cost of software is likely to be higher in such circumstances as the development costs are spread over a greater number of users, both actual and potential. 8) An operating system is stored on disk and has to be booted into the internal memory (RAM) where it must reside through processing so that commands are instantly available.

2.Choose the right answer:

1) A computer system is built from such components:

a) monitor and keyboard;

b) the hardware, the operating system, and the applications;