Communications technologies are everywhere. Many require that you subscribe to an Internet service provider. With others, an organization such as a business or school provides communications services to employees, students, or customers.
Uses of Communications Technologies
Chat rooms - Real-time typed conversation among two or more people on a computers or mobile devices connected to a network.
Email - Transmission of messages and files via a computer network
Fax - Transmission and receipt of documents over telephone lines
FTP - Permits users to transfer files to and from servers on the Internet
GPS - Navigation system that assists users with determining their location, ascertaining directions, and more Instant messaging - Real-time typed conversation with another connected user where you also can exchange photos, videos, and other content
Internet - Worldwide collection of networks that links millions of businesses, government agencies, educational institutions, and individuals
Newsgroups - Online areas in which users have written discussions about a particular subject
RSS - Specification that enables web content to be distributed to subscribers
Videoconference - Real-time meeting between two or more geographically separated people who use a network to transmit audio and video
Voice mail - Allows users to leave a voice message for one or more people
VoIP - Conversation that takes place over the Internet using a telephone connected to a computer, mobile device, or other device
Wireless Internet access points - Enables users with computers and mobile devices to connect to the Internet wirelessly
Wireless messaging services - Send and receive wireless messages to and from smartphones, mobile phones, handheld game devices, and other mobile devices using text messaging and picture/video messaging
Email - Transmission of messages and files via a computer network
Fax - Transmission and receipt of documents over telephone lines
FTP - Permits users to transfer files to and from servers on the Internet
GPS - Navigation system that assists users with determining their location, ascertaining directions, and more Instant messaging - Real-time typed conversation with another connected user where you also can exchange photos, videos, and other content
Internet - Worldwide collection of networks that links millions of businesses, government agencies, educational institutions, and individuals
Newsgroups - Online areas in which users have written discussions about a particular subject
RSS - Specification that enables web content to be distributed to subscribers
Videoconference - Real-time meeting between two or more geographically separated people who use a network to transmit audio and video
Voice mail - Allows users to leave a voice message for one or more people
VoIP - Conversation that takes place over the Internet using a telephone connected to a computer, mobile device, or other device
Wireless Internet access points - Enables users with computers and mobile devices to connect to the Internet wirelessly
Wireless messaging services - Send and receive wireless messages to and from smartphones, mobile phones, handheld game devices, and other mobile devices using text messaging and picture/video messaging
Wired and Wireless Communications
Wired communications often use some form of telephone wiring, coaxial cable, or fiber-optic cables to send communications signals. But because it is more convenient than installing wires and cables, many users opt for wireless communications, which sends signals through the air or space.
Examples of Wireless Communications Technologies
Wi-Fi and Bluetooth are both hot spot technologies. A hot spot is a wireless network that provides Internet connections to mobile computers and devices. | Using Public Wi-Fi Hot Spots Safely:• Avoid typing passwords and fnancial information • Sign out of websites • Disable your wireless connection • Do not leave the computer unattended • Beware of over-the-shoulder snoopers |
Networks
is a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media. Networks allow computers to share resources, such as hardware, software, data, and information. Sharing resources saves time and money.
Home networks save the home user money and provide many conveniences. Each networked computer or mobile device on a home network has the following capabilities: • Connect to the Internet at the same time • Share a single high-speed Internet connection • Access photos, music, videos, and other content on computers and devices throughout the house • Share devices such as a printer, scanner, or external hard disk • Play multiplayer games with players on other computers and mobile devices in the house • Connect game consoles to the Internet • Subscribe to and use VoIP | Business and school networks can be small, such as in a room or building, or widespread, connecting computers and devices across a city, country, or the globe. Some reasons that businesses network their computers and devices together include the following: • Facilitate communications. • Share hardware • Share data, information, and software |
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