Learn the basics

Let’s start with basic parts to running a computer.
Monitor ( the viewing screen),Tower (the large metal box like piece of equipment that stores all parts that make your computer run), Mouse (allows you to move the cursor across the screen and select a program), Keyboard.
Laptops and Tablets have all of these in one device.
An Operating System is the most important software that runs on a computer. It manages the computer’s memory, processes, and all of its software and hardware. Microsoft designed their “Windows” operating system to  allow you to communicate with the computer without knowing how to speak the computer’s language. Without an operating system, a computer is useless.
Web Browsers: A web browser is the tool you use to access the Internet.  Examples of browsers include Internet Explorer, Firefox, Google Chrome, and Safari (used on Mac’s).
The monitor (the screen you view with) works with a video card( located inside the computer case) to display images and text on the screen. Newer monitors usually have LCD (liquid crystal display) or LED (light-emitting diode) displays. These can be made very thin, and they are often called flat-panel displays. Older monitors use CRT (cathode ray tube) displays. CRT monitors are much larger and heavier, and they take up more desk space.  These are obsolete. Please dispose of at a  facility electronics  that does electronic recycling like “Goodwill”
The Keyboard is one of the primary ways we communicate with the computer and enter data. There are many different types of computer keyboards, including those you plug in Wired and  (uses USB plug or PS2 plug, and plugs directly into the computer). Wireless ( requires WiFi ) .Some of them have a 10-key calculator on the right hand side, other don’t but the layout is like a typewriter.
The Mouse is also known as a pointing device. Move your mouse from left to right, and up and down. You’ll see the point move across on the screen. Move the mouse and put the point over the icon you want on the screen.  Usually you will use the left side of the mouse to select the file you want to open and usually requires a double-click.  Use the right click on the mouse when you want to open another menu to do something like “copy” and you want to “paste” it somewhere else.
Touch-pad: A touch-pad is a touch-sensitive pad on laptops that acts like a mouse. You have buttons for “right click” and “left click” and lets you control the pointer by making a drawing motion with your finger.
The power cord is the link between the power outlet and the power supply unit in the computer casing. If the power cord is not plugged into the tower, the computer will not power on. Laptops are designed to be mobile. You can charge the battery up to 100% using an AC/DC power adapter and you can take it somewhere else without having to plug it in.  You generally get a couple hours of use with a good battery.  DO NOT leave your laptop plugged in all the time. It will burn up your battery. If you do not want to be mobile with your computer you can benefit by using a tower. To protect your computer from voltage spikes, you can plug the power cord in to a surge protector. You can also use an uninterruptible power supply (UPS), which acts as a surge protector and provides temporary power if there is a blackout.