About This Chapter
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
|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.|
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.
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.
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.
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.
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).
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.
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.
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