Chapter 4 CS

2. This is used to start up the firmware of a computer
5. a type of operating system that allows the user to type or speak commands.
7. a hardware device, used io input, store or output data from a computer, that is not directly part of the computer itself.
9. a series of instructions written in a programming language that performs a function.
12. a program that organises interrupts into an order based upon priorities.
14. an example of application software to store and manipulate data.
16. a program that retrieves an interrupt and performs the required action.
17. a piece of software that retrieves and displays web pages.
18. a type of software that manages the hardware and software in a computer.
20. the method by which a user communicates with a computer.
21. a type of application software that allows the user to create text-based documents.

1. a type of application software that performs calculations on data.
3. a program that manages the computer, allows the user to communicate with the computer, and allows software to be run.
4. a type of operating system where the user types commands.
6. third place of the software hierarchy
8. Second place of the software hierarchy
10. a type of operating system that includes windows, icons, menus and pointers.
11. fourth place of the software hierarchy
13. a signal sent to the processor to tell it that its attention is required.
15. A program that controls a device, for example, a printer or keyboard
19. First place of the software hierarchy