Ch 1: Introduction to Computers: Help and Review

About This Chapter

Use this chapter's video lessons and quizzes to examine computer systems hardware and software. Our instructors can help you develop your computing vocabulary and discover the business applications of information technology.

Introduction to Computers Chapter Summary

Examine everything from enterprise software and Internet connectivity to data warehousing and programming languages with this chapter's video lessons. Listed below are just some of the topics covered here:

  • Computer systems hardware
  • Application software
  • Network architecture
  • Management information systems
  • Data management

These engaging video lessons and self-assessment quizzes cover key vocabulary terms related to business computing. They also provide a more in-depth examination of specific topics. Lessons can be completed in any order, either individually or as part of our full-length business courses.

How to Use this Chapter

Use this chapter to familiarize yourself with computing hardware and software, whether for your own personal enrichment or to prepare for an exam. Lessons are also useful for complementing topics covered in your own high school or college course. Our instructors have plenty of teaching experience in their field, so you can rest assured that they'll hit on all of the important concepts associated with introductory computing.

You might also use this chapter to supplement instruction found in our business computing courses or one of several others. Topics of study include:

57 Lessons in Chapter 1: Introduction to Computers: Help and Review
What is a Motherboard? - Definition, Function & Diagram

1. What is a Motherboard? - Definition, Function & Diagram

The motherboard is a sheet of plastic that holds all the circuitry to connect the various components of a computer system. Learn how the motherboard functions to make all the other components work together.

Motherboard Terms Flashcards

Motherboard Terms Flashcards

Come to terms with your understanding of the parts, ports, circuitry, connections, and components that comprise a computer motherboard with these flashcards.

Central Processing Unit (CPU): Parts, Definition & Function

3. Central Processing Unit (CPU): Parts, Definition & Function

The central processing unit (CPU) is the brain of your computer. It handles all the instructions you give your computer, and the faster it does this, the better. Learn about how a CPU processes instructions and how computer engineers are continuously coming up with ways to make it go faster.

CPU Parts List & Flashcards

CPU Parts List & Flashcards

This set of flashcards will explore one of the most important pieces of a computer the central processing unit, or the CPU. It will also identify several key components and features of the CPU to increase the computer's speed and efficiency.

What is a Computer System Unit? - Function, Components & Definition

5. What is a Computer System Unit? - Function, Components & Definition

A computer system unit is the enclosure that contains the main components of a computer. It is also referred to as a computer case or tower. Read on to learn about the functions and components that go into a computer system unit.

What Are Peripheral Devices of a Computer? - Definition, Examples & Types

6. What Are Peripheral Devices of a Computer? - Definition, Examples & Types

A peripheral device connects to a computer system to add functionality. Examples are a mouse, keyboard, monitor, printer and scanner. Learn about the different types of peripheral devices and how they allow you to do more with your computer.

What is Computer Hardware? - Components, Definition & Examples

7. What is Computer Hardware? - Components, Definition & Examples

Computer hardware is the collection of physical parts of a computer system. This includes the computer case, monitor, keyboard, and mouse. It also includes all the parts inside the computer case, such as the hard disk drive, motherboard, video card, and many others. Computer hardware is what you can physically touch.

LAN Card: Definition, Function & Types

8. LAN Card: Definition, Function & Types

In this lesson, you'll be learning about LAN (or Local Area Network) cards, which is used to connect computers to networks. After the lesson, test your knowledge with a quiz.

What Is a Video Card? - Function, Definition & Types

9. What Is a Video Card? - Function, Definition & Types

A video card is used to process images so they can be displayed on your monitor. A good video card can make a big difference in the quality of your graphics, so this is particularly important if you play games or work with photography and video.

Magnetic Storage: Definition, Devices & Examples

10. Magnetic Storage: Definition, Devices & Examples

Data storage is a critical component of any computer system. Magnetic storage is one of the most affordable ways to store large amounts of data and has been implemented using magnetic tape, floppy disks and hard disk drives.

What is a Computer Keyboard? - Parts, Layout & Functions

11. What is a Computer Keyboard? - Parts, Layout & Functions

To enter text into a computer, you use a keyboard. Learn about the different types of keyboards and the typical layout of the keys. If you are doing a lot of typing, it is a good idea to get familiar with all of its special functions.

What is an Input Device for a Computer? - Definition & Examples

12. What is an Input Device for a Computer? - Definition & Examples

To interact with your computer, you need input devices. The most common are a keyboard and a mouse, but there are other devices for more specialized tasks. Learn about these devices and how they're becoming integrated into single computer systems.

Computer Input Devices List & Flashcards

Computer Input Devices List & Flashcards

This Flashcard set will describe the most common and not so common computer input devices found today. These devices are the core essentials required to work and play with and around computers. With this flashcard set you will be able to adequately identify and define each hardware input device and how it works.

What Is Multiprocessing? - Definition, Architecture & Examples

14. What Is Multiprocessing? - Definition, Architecture & Examples

Multiprocessing is the capability of a computer to multitask, or execute more than one program or process at the same time. In this lesson, we will learn about computers and their multiprocessing abilities.

What is Application Software? - Definition, Examples & Types

15. What is Application Software? - Definition, Examples & Types

What is computer application software, and how does it differ from other categories of software? This lesson introduces you to some examples of application software and how they are used.

Application Software List & Flashcards

Application Software List & Flashcards

In this flashcard set, you will review application software concepts. You will learn how application software is different from other common types of software.

Network Interface Card (NIC): Types, Function & Definition

17. Network Interface Card (NIC): Types, Function & Definition

To connect to a network, a computer uses a network interface card (NIC). A NIC controls the wired and wireless connections of a computer to exchange information with other computers and the Internet.

Cascading Style Sheets (CSS): Definition, Types & Examples

18. Cascading Style Sheets (CSS): Definition, Types & Examples

In this lesson, we introduce you to cascading style sheets (CSS), which are really common on the World Wide Web. We'll briefly go over what they are and what kinds are out there as well as show you some common examples.

Computer Platforms: Definition, Types & Examples

19. Computer Platforms: Definition, Types & Examples

This lesson will explain what a computer platform is, describe the different sizes and types, and discuss the uses for the different types - one size definitely does not fit all! We will also touch on cloud-based computing platforms.

Control Unit: Definition & Design

20. Control Unit: Definition & Design

In this lesson, you will learn the importance of the control unit in operating your computer. You'll also learn where it is, what it does, and a couple of different design options.

De Facto Standards in Information Systems: Definition & Overview

21. De Facto Standards in Information Systems: Definition & Overview

In this lesson we will discuss de facto standards and how they compare with de jure standards, including how these standards impact business and our personal lives. We will also learn the benefits of using a standard and the negative ramifications if they are not used.

Dynamic RAM: Definition & Types

22. Dynamic RAM: Definition & Types

Dynamic random-access memory (DRAM) is a type of storage that is widely used as the main memory for a computer system. In this lesson, learn why it is one of the most important characteristics of a computer's performance.

George Boole, Mathematician: Biography & Timeline

23. George Boole, Mathematician: Biography & Timeline

In this lesson, you'll learn about George Boole, a famous mathematician who made significant contributions in algebra. We'll explore his life and logic and learn what led us to name a branch of mathematics after him.

How to Delete Web History

24. How to Delete Web History

In this lesson we will discuss data management pertaining to the web history records stored in your browser's memory. We will learn the circumstances under which removing the web history is recommended and we will also review the steps necessary to remove the web history from three popular browsers: Google Chrome, Internet Explorer and Mozilla Firefox.

How to Learn How to Type

25. How to Learn How to Type

This is an introductory lesson to help you learn to type. We will discuss posture, understanding your keyboard, finding the home row, and which fingers are responsible for each of the keys on the keyboard.

How to View Web History

26. How to View Web History

In this lesson, we'll discuss how to view the Web history records stored in your browser's memory, including the special circumstances under which we may consider viewing the Web history of others. We'll also review the steps used to view the Web history from popular browsers like Google Chrome, Internet Explorer, Mozilla Firefox and Opera.

Keyboard & Mouse Ergonomics: Definition & Concept

27. Keyboard & Mouse Ergonomics: Definition & Concept

When you work for long periods of time on your computer, this can put a strain on your body. Better designed peripherals can help reduce this strain. The field of ergonomics examines the interaction between humans and computers to improve the design of devices like keyboards and mice.

Read-Only Memory (ROM): Definition & Types

28. Read-Only Memory (ROM): Definition & Types

Computers have various types of memory. Read-only memory (ROM) contains the instructions for what needs to happen when a computer is powered on. The data in ROM cannot be modified, or only with great difficulty, since these instructions do not need to be changed very often.

The History of the Web

29. The History of the Web

This lesson takes a look at the history of the Web and why it is not the same thing of the Internet. We'll also look at some Web innovations and how we use them today, as well as a timeline infographic to help you understand how the technology changed over time.

The History of Web Design

30. The History of Web Design

In this lesson you will see how web design has evolved since its beginnings in the mid 1980's all the way through the mid 2010's. You will be introduced to the tools web designers used to enhance their web pages and bring us to where we are now.

Tim Berners-Lee, Inventor of the World Wide Web: Biography & Facts

31. Tim Berners-Lee, Inventor of the World Wide Web: Biography & Facts

Today people take the Internet and the World Wide Web for granted but this technology did not exist before the 1990s. In this lesson, learn about its evolution and the man who created it--Tim Berners-Lee.

Typewriters: History & Types

32. Typewriters: History & Types

A typewriter is a mechanical device to produce printed characters on a piece of paper by typing individual keys. Many of the developments in typewriter design have left their legacy on present data input techniques in computer systems.

What are CRM Systems? - Definition, Types & Examples

33. What are CRM Systems? - Definition, Types & Examples

In this lesson we define customer relationship management (CRM) as the process of managing customer interactions. This includes organizing, automating, and synchronizing customer information pertaining to sales, marketing, and customer support.

What are Data? - Types, Sources & Definition

34. What are Data? - Types, Sources & Definition

In this lesson, learn what data are and compare different types. Understanding how to represent and organize data is a key element of using a computer.

What are Digital and Analog Signals? - Definition & Explanation

35. What are Digital and Analog Signals? - Definition & Explanation

In this lesson, we will become acquainted with analog and digital signals, the characteristics of each, and how they are used in data transmission. We will also discuss why modulation and demodulation processes are required for sending and receiving data over transmission media.

What is a Byte? - Definition & Measurements

36. What is a Byte? - Definition & Measurements

In this lesson, we will find out what a computer byte is. We will also take a quick look at where this word comes from, and how it is used in the computer industry.

What is Computer Science? - Definition & Fields

37. What is Computer Science? - Definition & Fields

Computer science is a branch of science and technology that encompasses all aspects of a computer system including computer software, hardware, and networking. In this lesson, we will learn about it in more detail.

Binary Number System: Application & Advantages

38. Binary Number System: Application & Advantages

All computers use a binary number system, that relies upon just two symbols, typically 0 and 1. In this lesson, you'll learn about the advantages of using the binary number system, as well as some of its practical applications.

What is the Binary Number System? - Definition & History

39. What is the Binary Number System? - Definition & History

If you have spent any time around computers, you have probably heard of the binary number system. But what is it, exactly, and why is it so essential to modern computing? In this lesson we'll explore this fascinating topic.

Booting a Computer: Definition & Process

40. Booting a Computer: Definition & Process

In this lesson, we will learn what 'booting' a computer means, where the term comes from, and what happens exactly during the boot process. We will also explore why you may need to start your computer in safe mode.

What is 10 in Binary? - How-to & Steps

41. What is 10 in Binary? - How-to & Steps

The number ten in decimal form, 10, is way different than the number ten in binary form, 1010. Learn the steps you need to take for you to write the number ten in binary in this lesson.

How to Add Binary Numbers

42. How to Add Binary Numbers

In this lesson, you'll see that adding binary numbers isn't that difficult. And in some ways, it might be even easier than your regular addition! You'll learn the 3 rules to adding binary numbers and work out a few examples.

What is 255 in Binary? - How-to & Steps

43. What is 255 in Binary? - How-to & Steps

Binary math uses a base 2 number system, and is the foundation of the on-off way of thinking for computers. In this lesson, we'll discover how to reach the decimal value 255 using binary numbers.

What is a Network Protocol? - Types & List

44. What is a Network Protocol? - Types & List

Network protocols. You use them every day. Some even every minute, yet most people wouldn't know it. Network protocols are simply the rules the internet lives by. In this lesson, we'll learn what network protocols and look at the different types.

Mousetrapping in Computer Security: Definition

45. Mousetrapping in Computer Security: Definition

In this lesson, we will define mousetrapping and the features on a website that constitute this malicious practice. We will examine some of the implications.

What is a Backdoor Virus? - Definition, Removal & Example

46. What is a Backdoor Virus? - Definition, Removal & Example

In this lesson, we will define backdoor virus and explain how it works and the security risks it poses to any computer system, software or application. We will examine ways to remove backdoor viruses and minimize the risks to backdoors.

What is a Ransomware Attack? - Definition & Examples

47. What is a Ransomware Attack? - Definition & Examples

Did you ever think you could be held hostage remotely? With a ransomware attack, you and your data are the victims. In this lesson, we'll define ransomware, provide examples, and examine the best strategies for prevention and recovery.

What is Ransomware? - Definition, Removal & Examples

48. What is Ransomware? - Definition, Removal & Examples

In this lesson, we'll take a look at ransomware, what it is, how to remove it, and some examples. At the end, you should have a good understanding of this invasive technology.

Computer Hacking: Laws & Consequences

49. Computer Hacking: Laws & Consequences

In this lesson we will examine the activities that constitute computer crimes, the laws that are in place to combat such crimes, and the scope of crimes they cover. We will also look at the consequences or punishments stipulated by the law to bring culprits to justice.

What is Computer Hacking? - Definition, Prevention & History

50. What is Computer Hacking? - Definition, Prevention & History

In this lesson, we'll learn what computer hacking is, the activities involved, and ways of preventing it. We'll also examine briefly how computer hacking has evolved over the years.

What is the Difference Between Phishing and Pharming?

51. What is the Difference Between Phishing and Pharming?

In this lesson we will look at the definitions of Phishing and Pharming. Although similar, there are some definite differences between how these two kinds of cyber attacks are carried out.

What is a Botnet? - Definition, Detection & Security

52. What is a Botnet? - Definition, Detection & Security

In this lesson, we'll define Botnet, look at what they are, see how to detect their presence, and identify what you can do to secure your system against them.

What is a Botnet Attack? - Definition & Examples

53. What is a Botnet Attack? - Definition & Examples

In this lesson, we'll be examining botnet attacks. We'll learn the definition of a botnet, the activities entailed in establishing a botnet, and the various related malicious attacks a botnet can be used for.

Asymmetric Threat: Definition & Characteristics

54. Asymmetric Threat: Definition & Characteristics

In this lesson, we will define threat and discuss asymmetric threats and their characteristics. At the end, you should have a good understanding of these important concepts.

IT Threat Mitigation: Definition & Strategies

55. IT Threat Mitigation: Definition & Strategies

In this lesson, we will learn the importance of mitigation strategies in combating IT threats in computer systems. We will examine how the different strategic approaches are used prevent, detect, and correct threats to programs and systems.

Nanotechnology: Definition, Applications & Examples

56. Nanotechnology: Definition, Applications & Examples

In this lesson, we will learn about nanotechnology. We will define nanotechnology and what makes this technology so revolutionary. We will also examine some applications and examples of nanotechnology.

Computer Animation: Definition, History & Types

57. Computer Animation: Definition, History & Types

Do you like to watch films or play video games? Have you ever wondered about the inner-workings of computer animation? In this lesson, we will look at the history and future of this field.

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