course review.md

• interpreter: A program that reads a plain text source code file and attempts to execute the contents
• shell: a program that enables users to interactively explore their local operating system: its files, its utilities, and its peripherals. Examples: Bash, Powershell
• string: a representation of plain text data => "hello".class => String
• integer: a whole number => 100.class => Integer
• function: a segment of code defined and named for reuse

     def hi(name)
       puts "Hi, #{name}!"
     end

• route: a string that tells a web server which resource a user is looking for
  • GET /students requests the "/students" route which we've mapped to the StudentsController#index method which loads the Student model from the students table in the database and renders it using views/students/index.html.erb.
• request: a web browser asking a web server to fetch and return a specific resource by its URL =>GET "/"
• database server: The computer or program that hosts your records in your rails app; e.g. sqlite3 or postgresql
• logical database: The named database inside your database server that your app stores and retrieves data from e.g. students_production
• table: A database representation of a structured set of records such as a list of students with common characteristics (columns) like name, age, address
• SQL: Structured Query Language: The low-level language used to interact with most databases => SELECT * FROM STUDENTS;
• HTML: Hypertext Markup Language: the syntax used to describe what content a browser is intended to render at a given URL
• ERB: Embedded RuBy -> a way of injecting dynamic ruby code into otherwise static text files => index.html.erb => <%= @student.name %>
• Heroku: A web application host specializing in running Ruby and Rails applications in the cloud with minimal server operations work
• migration: A file that describes a structural change the developer intends to apply to a database e.g. "add a birthday column to students with type datetime"
• version control: A system for tracking file changes and sharing them with others. Also works as a backup utility for your source code. Example: git.
• mailer: A utility for generating and sending customized emails. Example: ActionMailer in Rails