tc2-computer literacy mr. sencer february 4, 2010

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Networks and the Internet TC2-Computer Literacy Mr. Sencer February 4, 2010

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Networks and the Internet

TC2-Computer LiteracyMr. Sencer

February 4, 2010

What is a network?A network is a collection of computers and

devices connected together, sometimes wirelessly, via communications devices.

When a computer connects to a network, it is now considered to be online.

What are some benefits of Networks?Networks allow computers to share

resources, such as hardware, software, data, and information.

Sharing resources saves time and money.In many networks, one or more computers

act as a server. Servers control access to the resources on the

network.Clients are the other computers on the

network, sometimes called a workstation, request resources from the server.

Typical Network

What's the difference between a client and a server?The major difference between a client and a

server are that a server ordinarily has more power, more storage space, and expanded communications capabilities.

NetworksHome networks usually are small, existing

within a single structure.Business and school networks can be small,

such as in a room or building, or widespread, connecting computers across a city, country, or the globe.

The world’s largest computer network is the Internet.

The InternetWhat is the Internet?

The Internet is a worldwide collection of networks that connects millions of computers and devices around the world.

More than one billion people use the internet daily around the world.What do you use the internet for daily?

The Internet – Graphically

The InternetPeople also connect to the internet to share

information as well.E-Mail allows for instant communication, it has

replaced what is now known as SNAIL mail.Instant Messaging you can have live

conversations with other connected users. Using chats in Instant messaging you have group discussions just like face to face.

Telephony Applications exist on the internet where you can

make phone calls through the Internet. Do you know of any programs that allow telephony?

Accessing the InternetCompanies known as access providers offer

access to the Internet usually at a monthly fee but sometimes do provide access for free.

When subscribing to an access provider, the access provider will give you some type of communications device to connect to the many services of the Internet.

The WebThe Web a.k.a. the World Wide WebThe Web is the most popular service on the

Internet. The Web is considered to be similar to a

global library where the information is available to anyone connected to the Internet.

The WebDocuments on the Web

What are they called? Web Pages, the web contains billions of Web pages. Each Web page can contain text, graphics, audio,

video and animations.Web pages usually have connections, and links

to other documents, files or other web pages known as web sites.

What really is a web site?A website is a collection related web pages.

The WebMany people use the Web as a way to share

personal information, photos, and videos with the world.

For example, you can create a Web page and then make it available, or publish it, on the Internet for others to see

You also can join the millions of people worldwide in an online community, called a social networking Web site or an online social network, that encourages members to share their interests, ideas, stories, photos, music, and videos with other registered users.

Social NetworkingSome social networking Web sites are college

oriented, some business oriented, and others are more focused.

For example, a photo sharing community, is a specific type of social networking Web site that allows users to create an online photo album to store and share their digital photos.

Similarly, a video sharing community is a type of social networking Web site that allows users to store and share their personal videos.

What are some social networking sites that you have visited recently?

BlogsWhat is a blogs?

A blog is an informal Web site consisting of timestamped articles in a diary or journal format, usually listed in reverse chronological order.

Which website do you use most for blogging with?

Media on the WebPodcasts are a popular way people are

sharing information on the Web that is beginning to catch on.

What is a podcast?A podcast is recorded audio stored on a Web

site that can be downloaded to your .A video podcast is a podcast that contains

video and usually audio.

Web ApplicationWhat is a web application?

A Web application is a Web site that allows users to access and interact with software from any computer or device that is connected to the Internet.

What are some examples?Examples of software available as Web

applications include those that allow you to send and receive e-mail messages, organize digital photos, create documents, and play games.

Web 2.0 Web sites such as social networking Web

sites, blogs, and Web applications are categorized as Web 2.0 sites.

What is Web 2.0 ?Web 2.0 refers to Web sites that provide a

means for users to share personal information, such as social networking Web sites, allow users to modify the Web site contents (such as blogs), and/or have software built into the site for users to access.