Portable Communication Devices


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Portable Communication Devices:

Portable Communication Devices By Alex, Boyd, and Miguel


Contents What are portable communication devices? Devices Mobile phones Portable DVD players Portable media players GPS systems Satellite navigation systems Handheld computers Bluetooth

What are portable communication devices?:

What are portable communication devices? These are devices that can be carried and transported easily by a person They are used to communicate information to both the user and other people Examples of these devices and their uses, advantages, and disadvantages will be given in this presentation

Mobile Phones:

Mobile Phones They work using the transmission of electromagnetic radio waves through a connected cellular network They are used to make phone calls and send text messages for personal and business use Most modern mobile phones have other useful features such as internet access, camera functions, and media playback capabilities

Slide 6:

Advantages They can be used while travelling They are a convenient way to send and receive urgent messages Disadvantages Phones with advanced features have high costs The signal quality can be poor in certain locations They have limited battery life

Portable DVD Players:

Portable DVD Players They work exactly the same way as normal DVD players but come equipped with a built-in screen, allowing them to be used anywhere They are mainly for personal use, such as in cars for passengers to watch

Slide 8:

Advantages They are small and compact They can play CDs as well as DVDs Disadvantages The screen has a low resolution The screen is small, making it difficult to view

Portable Media Players:

Portable Media Players These are used to store and play music, video, and other media To transfer data to and from the device, they are usually synced to a computer Various types of storage are used for different devices, such as hard disks or flash memory.

Global Positioning Systems:

Global Positioning Systems Global Positioning Systems (GPS) work by using satellites in the sky At least four are visible in the sky at any point on the earth’s surface Receivers are used in navigation and drawing maps as well as for military purposes GPS systems can be used for runners to pinpoint their position, distance, and speed

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Advantages Positioning and distance travelled can be achieved regardless of the surrounding terrain Greater accuracy for measuring distances than using cars or bicycles Disadvantages Transmission of data can be slow They are expensive devices

Satellite Navigation Systems:

Satellite Navigation Systems Using GPS and stored data these systems can be used to quickly calculate a route for a vehicle They calculate the position of the driver They are used by drivers to determine a route for their cars or lorries, including alternative routes in the case of a traffic jam

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Advantages They are quicker to use than a normal road map They can receive up-to-date traffic conditions Disadvantages The display is very small Unsuitable roads or routes can be recommended

Handheld Computers:

Handheld Computers These are any computer that can be carried in one hand They have small screens and keyboards PDAs are examples of handheld computers. They are fitted with a touch screen They are used to store addresses, phone numbers, and e-mail addresses and to keep track of appointments

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Advantages They can be used away from the place of work They are easier to carry than laptops Disadvantages It is difficult to enter long bits of text They are as expensive as laptops


Bluetooth Uses radio waves to connect devices such as a headset and a mobile phone Used by drivers to operate handsfree call systems so they can concentrate on driving A mouse, keyboard and printer can be connected wirelessly to a PC using Bluetooth Game consoles also use Bluetooth to connect to their wireless controllers

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Advantages Can be used for many applications Cheaper hardware than Wi-Fi Uses less power than Wi-Fi Disadvantages Data transfer is slower than Wi-Fi It covers only a small distance


Summary Mobile Phones Used to make phone calls and send text messages Portable DVD Players They are normal DVD players that are equipped with a built-in screen Portable Media Players Used to store and play music, video, and other media Global Positioning Systems They track someone’s position, distance and speed


Summary Satellite Navigation Systems They calculate an ideal route for car drivers to follow Handheld Computers They are any computer that can be carried in one hand Bluetooth Uses radio waves to connect devices such as a headset and a mobile phone

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