Chapter 18/ Mobile devices up to page 884

Question 1

______________, is a term used to describe text that is written using the protocol of a particular programming code
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Answer 1

source code

Question 2

open source.

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Answer 2

Term used to describe a program or file that can be freely modified by anyone, allowing users or organizations to adjust the program’s functionality to perform for their specific needs.

Question 3

closed source.

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Answer 3

known as proprietary, vendor specific software

is licensed to other to used but kept within the control of the original publisher.

Question 4

The google Android OS

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Answer 4

• Android is a Linux based platform and free and open software stack that has an operating system, middleware, and applications originally developed by Google and released in 2007 for mobile platforms.
• It is managed by the open Handset Alliance.
• It is based on Linux operating system.

Question 5

The Apple iPhone OS.

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Answer 5

• iOS is the operating system that runs on Apple iPhone, Apple iPad, and Apple iPad Touch devices given to the devices by Steve Jobs during the 2010 WWDC. The iOS is one of the most used platforms for mobile devices, only slightly edged out by Android from Google.
• it is a closed source
• It is based on UNIX operating system.

Question 6

The Open handset Alliance.

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Answer 6

The Open Handset Alliance (OHA) is a consortium of 84 firms to develop open standards for mobile devices. Member firms include Google, HTC, Sony, Dell, Intel, Motorola, Qualcomm, Texas Instruments, Samsung Electronics, LG Electronics, T-Mobile, Sprint Corporation, Nvidia, and Wind River Systems.

Question 7

apple requires annual fees from developers?

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Answer 7

yes.

Question 8

Apps must be submitted to Apple for approval before being added to the App store.
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Answer 8

yes

Question 9

what is SDK

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Answer 9

Software Development Kit, SDKis a collection of software utilities and tools that help a programmer develop applications for a specific platform.

Question 10

which applications does App store serve?

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Answer 10

applications created with iOS and Mac software development Kits.

Question 11

name the two popular methods of detecting devices orientation
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Answer 11

Accelerometer

Gyroscope

Question 12

Accelerometer characteristic detection capabilities are:

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Answer 12

forward/ backward, left/right, up/ down

Question 13

Gyroscope characteristic detection capabilities are:

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Answer 13

roll, pitch, yaw

Question 14

Accelerometer is ___________

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Answer 14

a device that measures non-gravitational accelerations - change in velocity.

Question 15

gyroscope add three new axes of movement that Accelerometer didn’t have it help detect these motions_________
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Answer 15

roll, pitch, yaw

Question 16

positioning and geolocation

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Answer 16

the position of the device from the viewpoint of the planet and the space, to accomplish that two technologies are used:
1- Magnetometer
2- Global position system.

Question 17

magnetometer

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Answer 17

all iPad and iPhone beginning with the 3GS have included a magnetometer ( compass heading)

Question 18

Global positioning system

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Answer 18

absolute position on the earth using
GPS global position system
GLONASS global navigation satellite system is a Russian form of GPS

Question 19

what is geotracking ?

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Answer 19

is the geolocation information collected by the mobile devices.
apple added the geotracking feature to the iOS starting on version 4.

Question 20

what is geortagging?

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Answer 20

is the process of attaching a physical location to a photograph’s metadata. The geotag may include regional geologic data, such as city and state, or it may include more precise data such as the latitude and longitude. Geotagging data may then be read by programs to show the user where the photo was taken.

Question 21

The touchscreen

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Answer 21

The touchscreen enables the user to interact directly with what is displayed, rather than using a mouse, touchpad, or any other intermediate device

Question 22

to have a good screen calibration we need to do recalibration, which varies between the two technologies used.
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Answer 22

resistive and capasitive.

Question 23

resistive touchscreen is built using two layers of sturdy panels separated by an air pocket, what are those panels made of?
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Answer 23

One is plastic and the other is glass.

Question 24

ITO stand for what?

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Answer 24

indium ten oxide

Question 25

capacitive touchscreen

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Answer 25

in this screen the two layers of ITO are placed between two pieces of glass.

Question 26

Combination touchscreens.

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Answer 26

it is a combination of the resistive and the capacitive.

Question 27

mobile devices have the ability to access the networking services using which network?
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Answer 27

cellular network

Question 28

what are the alternative access to the network that manufacturers provide in there devices?
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Answer 28

Bluetooth and WIFI