Week 14

Computer Security Risk:

A computer security risk is any event or action that has the potential of causing a loss of computer equipment, soft ware, data and information, or processing capability.

Different Types of Security Risk:
Virus

Safeguards:
1. Purchase and install reliable antivirus software.
2. Scan all removable media.
3. Scan all files downloaded from the Internet.
4. Scan all attached files before opening them.
5. Turn off email preview.
6. Scan all software before using it, even if it is shriek wrapped.
7. Do not use pirated, illegal copies of copyrighted software.
8. Never start your computer with removal media in the drives.

Virus:

A virus is a potentially damaging computer program designed to affect your computer negativity without your knowledge or permission by altering the way it works.

3 Types of Viruses:

• Boot Sector Virus: replaces the boot program used to start the computer with modified, infected version of the boot program.
• File Virus: inserts virus code into programs files then it spreads to other programs.
• Macro Virus: uses the macro language of an application, such as word processing or spreadsheet.

Why they are commonly found in schools:

• Schools have a huge use of networks and the Internet makes the spread of viruses easier than ever. Viruses commonly infect computers through email attachments.

To Minimize the Impact of Viruses:

• Before you open or execute any email attachment you should ensure that the email message is from a trusted source and you should scan the attachment using antivirus software.

Computer Ethics:

Computer ethics are the moral guidelines that govern the use of computers, networks, and information systems.

5 Important Areas of Computer Ethics;

• Unauthorized use of computers
• hardware, software, and information theft
• information privacy
• copy right
• existence of objectionable materials on the Internet.

2 Recent Government Actions Protecting Children on the Internet:

• 2002 - Dot Kids Implementation and Efficiency Act: Establishes the Dot Kids Domain that lists only Websites that conform to policies to protect children under the age of 13.
• 2000 - Children Internet Protection Act: Protects children from obscene and pornographic materials on the Internet.

Over voltage:

Over voltage or power surge occurs when the incoming electric power increases significantly above the normal 120 volts. This can cause immediate and permanent equipment damage.

Protect Your Computer:

• Surge Protectors for your computer and the modem, telephone lines, DSL lines, and other Internet Cables.
• An uninterruptible power supply (UPS) is a devise that contains surge protection circuits and one or more batteries that provide power during a temporary or permanent loss of power.

Week 12

Web pages & Hyperlinks & Hypertext Mark up Language:

A web page is an electronic document viewed on the web. It can contain text, graphics, sounds and video as well as hyperlinks to other web pages. Hyperlinks allow users to navigate from one web page to another. Hypertext Markup Language is a set of special codes that define the placement and format of text, graphics video and sound on a web page.

Streaming:

Streaming is the process of transferring data in a continuous and even flow. Streaming audio enables you to listen to the sound file as it downloads to your computer. Streaming videos allow you to view longer or live video images as the video file downloads to your computer. Streaming video is creating new possibilities for teaching and learning. Streaming allows teachers to download videos that can help with the students' understanding of the lesson being taught.

Firewall, Filtering software, AUPs:

A firewall is a general term that refers to both hardware and software used to restrict access to data on a network. Firewalls deny network access to unauthorized users. Acceptable Use Policy is an outline of user standards that reminds teachers, students, and parents that they are guests on the Internet and that they need to use it appropriately. Firewalls, filters and AUPs are important to K-12 students because they keep the students from going to sites that are not appropriate for young users.

Search Tool:

A search tool enables users to locate information found at websites all over the world. A search engine is a specific type of search tool that finds websites, web pages and Internet files that match one or more key words you enter. A subject directory is a type of search tool that allows users to navigate to areas of interest without having to enter keywords. I would use a subject directory to search for links in the category Education.