Login

Ch 3: Computer Hardware

About This Chapter

Watch online video lessons to learn about computer systems, including devices and components, data representation, and arrays. Take advantage of the short quizzes that conclude each lesson to gauge your progress.

Computer Hardware - Chapter Summary and Learning Objectives

Working with computer systems involves many facets, from the physical makeup of the computer itself to the programs created to perform tasks. This chapter introduces devices used with computer systems and distinguishes between those that are used for information coming in and those that carry information out. You will also learn how computer systems work, what parts are required, and the function of those parts. Technical concepts such as character-encoding schemes and data storage technology are presented. This chapter can help you understand the following:

  • Digital representation of data
  • Input and output devices
  • Computer system components
  • Processing and memory
  • Arrays and data redundancy

Video Objective
ASCII (Binary & Digital) and Analog Representation of Data Understand how computers digitally represent data.
Computer Output Devices: Monitors, Speakers, & Printers Recognize devices of a computer used for output.
Computer Input Devices: Keyboards, Mice, Audio & Video Recognize devices of a computer used for input.
Computer System Components: Computer Parts & Functions Look at what components make up a computer system and what the components do.
Computer Memory and Processing Devices: Functions & Characteristics Find out the differences between processing devices and memory devices.
RAID Arrays & Data Redundancy Learn about data storage technology.

7 Lessons in Chapter 3: Computer Hardware
ASCII and Unicode to Represent Characters in Binary Code

1. ASCII and Unicode to Represent Characters in Binary Code

A computer can think at speeds of over a billion machine cycles per second. However, no spoken language is a computer's native tongue. Learn how a computer translates analog to digital signals in this lesson.

Computer Output Devices: Monitors, Speakers, & Printers

2. Computer Output Devices: Monitors, Speakers, & Printers

So you've entered information into your computer. How do you get it back out? Here's a look at output devices such as monitors, speakers, printers and eBooks.

Computer Input Devices: Keyboards, Mice, Audio & Video

3. Computer Input Devices: Keyboards, Mice, Audio & Video

What input devices do you use on a daily basis? We'll take a look at the common keyboard and mouse devices as well as other methods of input like audio and video.

Computer System Components: Computer Parts & Functions

4. Computer System Components: Computer Parts & Functions

Are you ready to buy a computer? Let's take a trip through the components of a computer for some advice. We'll learn about the motherboard, memory, storage, connectivity and peripherals.

Computer Memory and Processing Devices: Functions & Characteristics

5. Computer Memory and Processing Devices: Functions & Characteristics

Have you ever wondered how your computer operates - specifically, where it stores all the information it needs to run? This lesson will answer that question by explaining the general functions of the central processing unit (CPU), random-access memory (RAM) and read-only memory (ROM).

External and Internal Storage Devices: Optical, Magnetic & Semiconductor Storage

6. External and Internal Storage Devices: Optical, Magnetic & Semiconductor Storage

Let's explore the capacity of internal and external storage devices. We'll learn how optical, magnetic and semiconductor storage works, as well as identify some examples of storage devices.

RAID Arrays & Data Redundancy

7. RAID Arrays & Data Redundancy

RAID uses multiple hard disk drives to improve the reliability and performance of data storage. Learn how RAID provides data redundancy to protect against hard disk drive failures.

Earning College Credit

Did you know… We have over 79 college courses that prepare you to earn credit by exam that is accepted by over 2,000 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Support