Unit 1. Assignment 1. Voice vs. Data

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Unit 1. Assignment 1. Voice vs. Data Cell Phones Known as a mobile a phone it can make and receive telephone calls over a radio link while moving around a wide geographic area. Modern mobile phones support a wide variety of other services such as text messaging, email, internet access, Bluetooth, gaming and photography. Landline phones is a phone that uses a solid medium telephone line such as metal wire or fiber optic cable for transmission. Modern lines may run underground, and may carry analog or digital signals to the exchange, or may have a device that converts the analog signal to digital for transmission on a carrier system. SMS/Text Messaging (Short Message Service) an electronic message between two or more mobile phones, or fixed or portable device over a phone network. A service component of phone, Web, or mobile communications systems. Data application. Fax Machines a device that scans and processes the contents (text or images) as a single fixed graphic image converting it into a bitmap, and then transmitting it through the telephone system. The fax machine reconverts the coded images, printing a paper copy. Before digital technology became widespread, the scanned data was transmitted as analogue. Pagers is wireless telecommunications devices that receives and displays numeric or text messages, or announces voice messages. A paging system alerts a pager (or group of pagers) by a transmitting information over an RF channel. VOIP(voice over IP) phones uses Voice over Internet Protocol technologies for placing and transmitting telephone calls over an IP network, such as the Internet, instead of the traditional public switched telephone network. Skype/Face times is a voice-over-IP service and instant messaging client. The service allows users to communicate with peers by voice using a microphone, video by using a webcam, and instant messaging

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