# Wrap-up; Glossary terms from week 1

<div class="cds-1665 css-xl5mb3 cds-1666" id="bkmrk-we-did-it%21-what-a-gr"><div class="cds-1665 rc-Paragraph css-1lz62pp cds-1667 cds-grid-item"><div class="phrases"><div aria-label="toggle video from We did it!" class="rc-Phrase css-ugczj4" data-cue="1" data-cue-index="0" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">We did it! </span></div><div aria-label="toggle video from What a great section of learning!" class="rc-Phrase css-ugczj4" data-cue="2" data-cue-index="1" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">What a great section of learning! </span></div><div aria-label="toggle video from The best thing is that we did this together and" class="rc-Phrase css-ugczj4" data-cue="3" data-cue-index="2" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">The best thing is that we did this together and </span><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">covered some very useful topics. </span></div><div aria-label="toggle video from Let's recap this section's lessons." class="rc-Phrase css-ugczj4" data-cue="5" data-cue-index="4" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">Let's recap this section's lessons. </span></div><div aria-label="toggle video from As a security analyst," class="rc-Phrase css-ugczj4" data-cue="6" data-cue-index="5" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">As a security analyst, </span><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">it's important that you understand the systems that you're working with. </span></div><div aria-label="toggle video from Understanding computer basics will help you do your job more effectively and" class="rc-Phrase css-ugczj4" data-cue="8" data-cue-index="7" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">Understanding computer basics will help you do your job more effectively and </span><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">efficiently. </span></div><div aria-label="toggle video from In this section, we covered common operating systems." class="rc-Phrase css-ugczj4" data-cue="10" data-cue-index="9" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">In this section, we covered common operating systems. </span></div><div aria-label="toggle video from In this section, we covered common operating systems." class="rc-Phrase css-ugczj4" data-cue="10" data-cue-index="9" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">We also discussed the main functions of an operating system. </span></div><div aria-label="toggle video from Importantly, you learned about the relationship between operating systems," class="rc-Phrase css-ugczj4" data-cue="12" data-cue-index="11" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">Importantly, you learned about the relationship between operating systems, </span><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">applications, and hardware. </span></div><div aria-label="toggle video from It was nice to learn how they flow together like an orchestra." class="rc-Phrase css-ugczj4" data-cue="14" data-cue-index="13" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">It was nice to learn how they flow together like an orchestra. </span></div><div aria-label="toggle video from In addition, you learned about the differences between the graphical user" class="rc-Phrase css-ugczj4" data-cue="15" data-cue-index="14" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">In addition, you learned about the differences between the graphical user </span><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">interface and the command-line interface. </span></div><div aria-label="toggle video from Understanding the command-line interface will be very important for your work." class="rc-Phrase css-ugczj4" data-cue="17" data-cue-index="16" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">Understanding the command-line interface will be very important for your work. </span></div></div></div></div><div class="cds-1665 css-xl5mb3 cds-1666" id="bkmrk-"><div class="cds-1665 rc-Paragraph css-1lz62pp cds-1667 cds-grid-item">  
</div></div><div class="phrases" id="bkmrk-i-enjoyed-exploring-"><div aria-label="toggle video from I enjoyed exploring the world of operating systems with you." class="rc-Phrase css-ugczj4" data-cue="18" data-cue-index="17" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">I enjoyed exploring the world of operating systems with you. </span></div><div aria-label="toggle video from Knowing how operating systems work is an important step in preparing for" class="rc-Phrase css-ugczj4" data-cue="19" data-cue-index="18" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">Knowing how operating systems work is an important step in preparing for </span><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">a position as a security analyst. </span></div><div aria-label="toggle video from You're doing great!" class="rc-Phrase css-ugczj4" data-cue="21" data-cue-index="20" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">You're doing great! </span></div><div aria-label="toggle video from Let's keep moving forward with this program." class="rc-Phrase css-ugczj4" data-cue="22" data-cue-index="21" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">Let's keep moving forward with this program. </span></div><div aria-label="toggle video from In the next section," class="rc-Phrase css-ugczj4" data-cue="23" data-cue-index="22" role="button" tabindex="0"><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">In the next section, </span><span aria-hidden="true" class="cds-1801 css-80vnnb cds-1803">we'll focus specifically on the Linux operating system. </span></div></div><div aria-label="toggle video from In the next section," class="rc-Phrase css-ugczj4" data-cue="23" data-cue-index="22" id="bkmrk--1" role="button" tabindex="0">---

</div>## **Terms and definitions from Course 4, Week 1**

**Application:** A program that performs a specific task

**Basic Input/Output System (BIOS):** A microchip that contains loading instructions for the computer and is prevalent in older systems

**Bootloader:** A software program that boots the operating system

**Command-line interface (CLI):** A text-based user interface that uses commands to interact with the computer

**Graphical user interface (GUI):** A user interface that uses icons on the screen to manage different tasks on the computer

**Hardware:** The physical components of a computer

**Legacy operating system:** An operating system that is outdated but still being used

**Operating system (OS)**: The interface between computer hardware and the user

**Random Access Memory (RAM):** A hardware component used for short-term memory

**Unified Extensible Firmware Interface (UEFI):** A microchip that contains loading instructions for the computer and replaces BIOS on more modern systems

**User interface:** A program that allows the user to control the functions of the operating system

**Virtual machine (VM)**: A virtual version of a physical computer