IT 244 Lesson 1

4. Allows Linux users to post messages and reply to previously posted messages.
6. ___ are like virtual machines but lack an operating system kernel.
7. the core component of the Linux operating system
10. an operating system developed by Ken Thompson
11. a unique way to identify computers and refer to other computers
15. small hardware devices that can connect to the internet are collectively called ___.
16. the process of logging in with a valid username and password before gaining access to the user interface
18. someone who illegally uses computers for personal benefit or to cause damage.
19. where data is stored and organized into tables of related information

1. services are also called ___ on Linux systems
2. a person who attempts to expand their knowledge of computing through
3. A computer or special hardware device that provides network connections.
5. The ability for a computer to increase workload as the number of processors increases.
8. a compressed archive of files, like WinZip or RAR files, usually containing scripts that install the software contents to the correct location on the system.
9. A public key that has been digitally signed by a CA is called a ___.
12. An organization that installs one or more CAs is said to have a ___.
13. the most common and efficient efficient method for transferring files over the Internet.
14. A computer that hosts one or more services that can be accessed by other systems across a network.
17. The overall cost of using a particular operating system is known as ___.