Radio paging, tele messages and Prestel

Radio paging

• Is a one way communication system.
• Is an internal means of communication.
• I used by people in an organisation only.
• Is hired from the post office.
• A public address system e.g. used in supermarkets, hospitals and factories.
• It provides a beeper.

Tele Messages

• Is a quick way of communication.
• Messages are dictated over the phone.
• The message is transmitted by telex to the post office nearest to the addressee.
• Messages is sent by a post office messenger to the addressee.
• Suitable for short messages.

Prestel

• System which enables subscribers to have information extracted from the computer through a network
• The information is displayed on an adapted Television set.
• Used to check on prices and interest rates.

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