Update introduction on the installation of docker in cs101F2019_pract…

…ical01.

practical01/cs101F2019_practical01.tex

@@ -144,11 +144,14 @@ \section*{Suggestions for Success}
   you can post it to the designated channel. Or, you can ask a student sitting
   next to you or talk with a teaching assistant or the course instructor.
 
-% \item {\bf Store your files in GitHub}. Starting with this practical assignment, you will be responsible for storing
-%   all of your files (e.g., Java source code and Markdown-based writing) in a Git repository using GitHub Classroom.
-%   Please verify that you have saved your source code in your Git repository by using \command{git status} to ensure that
-%   everything is updated. You can see if your assignment submission meets the established correctness requirements by
-%   using the provided checking tools on your local computer and in checking the commits in GitHub.
+% \item {\bf Store your files in GitHub}. Starting with this practical assignment,
+%   you will be responsible for storing all of your files (e.g., Java source code
+%   and Markdown-based writing) in a Git repository using GitHub Classroom. Please
+%   verify that you have saved your source code in your Git repository by using
+%   \command{git status} to ensure that everything is updated. You can see if your
+%   assignment submission meets the established correctness requirements by using
+%   the provided checking tools on your local computer and in checking the commits
+%   in GitHub.
 
 % \item {\bf Keep all of your files}. Don't delete your programs, output files,
 %   and written reports after you submit them through GitHub; you will need them
@@ -199,11 +202,56 @@ \section*{Reading Assignment}
 complete this part of the reading assignment, please visit the web site of each
 tool.
 
+Once you have bookmarked references for each of the aforementioned web sites and
+reviewed some of the printed guides, please access the Slack workspace that we
+will use in this course, available for signup at
+\url{https://join.slack.com/t/cmpsc101fall2019/signup}. Once you have access to
+the Slack workspace, please join the \url{#practicals} channel and post one
+thing that you have learned about Docker, your chosen text editor, and your
+package manager. In addition to posting what you learned, please review the
+comments from other students, always attempting to post something that is not
+already in the channel. Please make sure that you keep Slack open throughout
+your completion of this practical assignment as we will continue to use it for
+you to communicate with each other, the technical leaders, and the course
+instructor, who will read and assess your insights.
+
+\section*{Installing and Using Docker}
+
+Docker is a platform for software engineers and system administrators to
+develop, deploy, and run software applications with containers that house
+full-fledged executable programs. When software engineers use Docker, they no
+longer have to focus on installing the programs that come inside of the Docker
+container. Instead, they can use a program in a Docker container as if it was
+installed on their development workstation, regardless of whether they are using
+Windows, Linux, or MacOS. A wide variety of companies, such as Visa and PayPal,
+use Docker. Throughout this semester, you will receive Docker containers that
+house programs like Java, Gradle, and GatorGrader. These containers will also
+hold the supporting libraries and packages needed to run the aforementioned
+programs. With that said, please note that you should not store source code or
+technical writing inside of a Docker container because it is a ``transient''
+software application that does not store its state upon shut-down. Finally, the
+provided Docker container will not include programs like Git or your text editor
+as the instructor expects that each student will install these programs
+separately.
+
+The Department of Computer Science has adopted Docker for all computer science
+courses. The course instructor, student technical leaders, and the departmental
+systems administrator will support the use of Docker on laptops running Windows,
+Linux, and MacOS. The instructor in this course will provide Docker containers
+with all the necessary software to run all class exercises, laboratory and
+practical assignments. Students will then be able to develop and run Java
+program on their own laptops, using instructor-provided Docker container. Before
+being able to use Docker, students must first complete the installation of
+Docker, following steps that are specific to the operating system on your
+laptop. Bearing in mind that you must follow steps customized to your laptop,
+please talk to the instructor or a technical leader if you get stuck on these
+steps.
+
 \section*{Summary of the Required Deliverables}
 
 \noindent Students do not need to submit printed source code or technical
 writing for any assignment in this course. Instead, this assignment invites you
-to submit, using GitHub, the following deliverables.
+to submit, using Slack the following deliverables.
 
 \vspace*{-.025in}