assignment #1

Name: Dane Leung

ID#:18085002

Course: Computer Application

The Internet- Essential Introduction to Computer

1. Define terms associated with the internet.

* (LAN)-Local Area Network

* TCP/IP-Transmission Control Protocol and Internet Protocol.

* URL-Uniform Resource Locator

* WWW-World Wide Web

2. Differentiate between the internet and the World Wide Web.

• Internet, computer –based global information system, the internet is composed of many interconnected computer networks.

• World Wide Web (WWW), computer based network of information resources that combines text and multimedia, information on the (WWW) can be accessed and searched through the internet.

3. State what hardware devices and software devices are important to connect to the internet.

* Hardware- modem, internet server

Software- World Wide Web, Web sites

Ethical Behavior

1. Discuss ethics and provide several examples of ethical Misbehavior.

• Ethics is the principles or the standards of human conduct sometimes called morals eg. Of ethical misbehavior are stealing, killing, lying, child abuse, sexual offenses.

2. Identify viruses and describe how they work.

• parasitic or file viruses- infects executable files or programs in the computer
• boot strap-sector viruses reside on the first portion of the hard disk or floppy disk , known as the boot sector

• Trojan Horse a destructive program disguised as a game, a utility , or an application

• Worm virus a program that propagates itself across computer usually by spawning copies of itself in each computer memory

• Script viruses are written in script programming languages, such as VBScript ( Visual Basic Script) and Java Script.

3. Describe how to avoid computer viruses.

* Fire walls- computers connected to communications network , such as the internet are vulnerable to electronic attacks because so many people have access to them, these computers can be protected by using fire wall computer software placed between the networked computers and the network.