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12 IPT0302 Examples of Communication Systems

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HSC IPT - Topic 3: Communication - Section 3.2: Examples of Communication Systems

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12 IPT0302 Examples of Communication Systems

  1. 1. Communication Systems 3.2) Examples of Communication Systems
  2. 2. • This section examines three examples of communication systems: • teleconferencing • messaging systems • electronic commerce • Teleconferencing is the use of an electronic transmission to allow a meeting to occur at the same time in different locations • It refers to an audio or video conference
  3. 3. • An audio conference is a telephone call involving three or more separate callers at different locations. • Video conferences allow people in different locations to hear and see each other. • Teleconferencing simulates a face-to- face meeting and reduces costs such as: • travel • meals • accommodation
  4. 4. • However, teleconferencing does remove the inter-personal relationships that are built through real meetings • A messaging system involves creation, exchange, storage, and management of messages • Traditional messaging systems have included: • telephone answering machines • facsimile (fax) machines
  5. 5. • More recent messaging systems include: • voice mail • instant messaging • electronic mail • Voice mail allows people to receive, store, manage and retrieve messages sent to their phone • It is useful because more people have access to their phone than a computer for email.
  6. 6. • Lately, voice mail has been superseded by instant messaging services. • Instant messaging allows short messages of text, images and video to be sent via computer or phone. • Email is a fast, economical and convenient way to send messages globally. • Email addresses are unique and made up of two parts separated by an @ symbol.
  7. 7. • The first part is the user name and the second part is domain name. • The domain name specifies the server where the person’s email messages are stored. • Email messages have two main parts: • the header • the body • The header contains the address, carbon copy (Cc), blind carbon copy (Bcc) and the subject of the message
  8. 8. • The body contains the text to be sent. • Once people receive a message they can reply or forward the message • Attachments can also be added to emails to allow the sending of files, images, programs and video. • Electronic commerce (e-commerce) is the buying and selling of goods and services across the Internet and the transfer of money.
  9. 9. • It can include: • EFTPOS • electronic banking • online auctions • Internet shopping • various ‘deal’ sites • For any of these items to function effectively they need strong security and encryption, reliable backups and real-time connections.

HSC IPT - Topic 3: Communication - Section 3.2: Examples of Communication Systems

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