value:string You already know how to write documents, balance a checkbook, and read and send correspondence.@ Whether you're at home or in the office, you can accomplish these and many other tasks using your computer.@ Your computer includes a variety of hardware components. One of the most important of these is the system unit.@ It houses the central processing unit, or CPU, which is the brain of your computer.@ Another hardware component of your computer looks like a TV. It's called a monitor.@ Text and images generated by your computer are displayed on its screen.@ You communicate with your computer using one of two devices.@ You can type information and instructions into your computer using a keyboard, which looks like a set of typewriter keys.@ Or, you can use a pointing device, such as a mouse, to select and move items that are displayed on the monitor's screen.@ You may have other hardware components, most of which plug into the back of your computer.@ Printers, modems, and speakers are all examples of hardware.@ A printer produces a paper copy of the information displayed on your screen or contained in a document.@ A modem connects your computer to the Internet over a telephone line.@ Audio can be heard through either internal or external speakers.@ Now let's review what you've learned so far.@ Do you remember the different hardware components of your computer system?@ Press the corresponding key on your keyboard to review the function of each component.@ The system unit houses a variety of hardware components, including the CPU, which is the brain of your computer.@ This is the monitor, which looks like a TV screen and displays the text and images generated by your computer.@ The keyboard is the device you use to type information and instructions into your computer.@ You use the mouse to select and move items on the screen.@ In this section you've become acquainted with your computer.@ Using Your Keyboard, the next lesson in this tutorial, will teach you how to give your computer instructions.@ Press LEFT ARROW to go back; RIGHT ARROW to continue.