Files, Folders, Files, Folders, Telecommunications, Telecommunications,

& Services& Services

Dreamweaver for Business & CollegeMrs. Wilson

Files & FoldersFiles & Folders

• A file is a collection of related data stored on a lasting medium, such as a hard disk.

• A file can be an application program or the product of an application.

– Digital cameras create photo files– Word processing creates document files

• The original form the file is saved in is referred to as the native format.

File NamesFile Names

• Each file is identified by a unique file name.

• When a new document is created, a temporary, generic file name is created.– Untitled-1 or Document1

• Filename extensions are automatically added.

FoldersFolders

• Folders are used to organize commonly related files.

Intranet, Extranet, InternetIntranet, Extranet, Internet

• Intranet– Used by a single corporation

• Extranet– Extends the intranet by providing various levels of

accessibility

• Internet– Largest and most widely accessed network—a

world-wide network of computers not controlled by one organization.

InternetInternet

• Client/Server • Interactive• TCP/IP

– transmission control protocol/internet protocol

• Router– Device that can connect

different technologies

• Firewall– Network security

system preventing unauthorized access

TelecommunicationsTelecommunications

• Transmitting and receiving data

• Can be in various forms including voice and video

• Requires a modem or adapter and a line or a cable

• Speed is measured in Kbps (thousands of bits per second) or Mbps (millions of bits per second)

Telecommunication OptionsTelecommunication Options

• Conventional Modem– Telephone lines converting analog to digital

• DSL– Digital Subscriber Line modem uses standard

telephone lines

• Cable Modem (Optimum!)– Transmits data through a coaxial cable tv network

• Leased/Dedicated Lines– Used by businesses and schools (T1)

• ISDN (Integrated Services Digital Network)– Digital telephone line

Internet ServicesInternet Services

• WWW– Used to access info on the web– NOT the same as the Internet

• Web Browser– IE, Firefox, Netscape, Opera

Types of WebsitesTypes of Websites

1. Personal• Created by individuals

2. Commercial• Corporate web presence• E-commerce sites

3. Informational• Display factual info on a topic (gov’t)

4. Media• Online newspapers & periodicals

5. Portal• Created by businesses for the purpose of giving people a

starting point for the web

BlogBlog

• Short for web log

• A type of website where users can post entries in a journal format

ExercisesExercises

• Page 37 in your book– Exercises 1, 2, and 3.

• Type up your responses and submit them at the end of tomorrow’s class.

• You may work on this assignment at home.