CompTIA Review

2. the computer receives data entered by the user through peripheral devices, such as mice, keyboards, scanners, cameras, and microphones
5. input and output devices connected to a computer
8. segments of code that you will reuse, that can return a value
9. a system that manipulates data according to a set of instructions
12. software that you can install free of charge so that you can evaluate it for a limited period
14. type of PC is housed in a case that can sit on or under a desk
15. the processed data is shown or played to the user through an output device, such as a monitor or loudspeaker system
17. Information that is stored and processed
19. consists of a table containing rows, columns, and cells
21. means that multiple operating systems can be installed and run simultaneously on a single computer

1. packages enable the user to store, organize, and retrieve information
3. delay in seconds that a packet of data takes to travel over a network
4. value that can change during the execution of the program
6. segments of code that you will reuse, does not return a value
7. the data may be written to different types of storage devices, such as hard disks or optical discs, because data stored in most types of system memory is only preserved while the computer is powered on
8. software that is available free of charge
10. legal protection for some kind of invention
11. a sequence of instructions for your computer to perform
13. provides all the functions for interacting with the device hardware
16. the data is written to memory and manipulated by the CPU, acting on instructions from the operating system and applications software
18. numbering system where each single digit can express only two values, in the range 0 to 1
20. the study of factors affecting the performance of people at work