A plus 220-1001 – Exam Objective 1.4 – Dumps4shared

A plus 220-1001 – Exam Objective 1.4

A+ Exam Objective 1.4

1.4 Compare and contrast characteristics of various
types of mobile devices.

Welcome to ExamNotes by CertBlaster! This session covers A+ Exam 220-1001 sub-objective 1.4. Here we will examine the characteristics of several mobile devices.

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Tablets

Tablets are a class of devices that are usually connected with
other devices using Wi-Fi, Bluetooth, or NFC.

Tablet using Wi-Fi, Bluetooth or NFC

A tablet is larger than a smartphone and typically lacks a
tactile keyboard and cellular capabilities.

Smartphones

Smartphones are an evolution of the traditional cell phone and
possess the added capability of running mobile applications (also referred to
as apps). Based on a larger physical platform (approx. 4”x6”), the combination
of apps with a touch sensitive display enable the device to perform additional
functions such as taking pictures, accessing social media, and playing games.
There are many apps out on the marketplace, allowing you to pretty much do
anything on your smartphone. In the image, we see a cyclist using a navigation app which utilizes
the smartphone’s built-in GPS.[GL1] 

Wearable technology
devices

These are devices that you can wear that are capable of
measuring, storing, and transmitting data. Typically, this type of device will
use Wi-Fi or Bluetooth. For Wi-Fi connected devices, your devices do not need
to be near each other as the Wi-Fi internet connection allows the devices to
communicate.

Smart watches

Smart watches are smaller than smartphones but can possess many
of the same features depending on the level of communication built in.

Smart watch

Smart watches can accommodate everything from simple interaction
to full text and voice communication if equipped for cellular communications.

Fitness
monitors

Taking advantage of Bluetooth and Wi-Fi, fitness monitors monitor
your body state and report the data back to the master device. (Show
fitness.jpg)[GL2]  These
devices allow you to measure heart rate and activity levels in real time.

VR/AR headsets
and Glasses

Glasses and headsets are a design breakthrough in the wearable
technology field. These devices project your smartphone or tablet display to a
clear lens or a screen.

Glasses and headsets

Using a built-in microphone, these devices can respond to voice
commands using voice recognition technology, allowing you to dictate and send
email or text messages along with verbally confirming any command or control
input. They can also provide an immersive experience by blocking out all other external
stimuli and place you in a virtual environment as shown below.

VR headset with headphones

Phablets

Physically fitting in the space between smartphones and tablets,
phablets are bigger than a smartphone and smaller than a tablet. Phablets make web
browsing more manageable and minimize the eye strain associated with smartphones.
The display size makes viewing multimedia content easier on the eyes as well.

e-Reader

An e-Reader is a dedicated reading device for e-books. Many e-Readers
also allow you to highlight and jot down notes. An e-Reader is not suitable for
gaming. Gaming and viewing video content requires a higher frequency refreshing
screen which on an e-reader can cause flicker. Gaming and viewing video content
requires a TFT display which is not power efficient and adds to the devices
weight. In addition, e-Readers have considerably less resources than a tablet.

Kindle e-Reader

The Kindle utilizes its resources for maximum benefit by using
E-ink and higher quality display resolutions. Originally possessing black and
white displays, current Kindle models have been upgraded to full 32 bit color
depth displays. Content is typically stored on the device and storage expansion
is possible using smart cards.

Smart camera

Forward-facing and rear-facing smart cameras are typically found
in your smartphone or tablet. These cameras are smart in the sense that they
incorporate additional features alongside standard picture taking such as
anti-jitter image stabilization, smile recognition, and blink recognition.

GPS

The foundation of the Global Positioning System (GPS) consists
of satellites which are orbiting earth in a fixed position relative to the
earth’s surface. This orbit is referred to as a geosynchronous orbit. A minimum
of three satellites is used by the GPS module inside your personal device to
determine the exact location. The time required to receive the signals from the
GPS satellites is measured and triangulated to determine your location.

Reading GPS output on a smartphone

Well, that’s it for 1.4. Make sure you know the content and realize that this section concerns more than knowing how to operate your phone. Good luck on the test!

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