Lesson 11 - Chapter 2: Mobile Operating Systems

Question 1

Most mobile devices run what 3 OS?

Answer 1

1. Apple iOS
2. Apple iPadOS
3. Google Android

Question 2

What does closed source mean?

Answer 2

the practice of making and selling a product without telling anyone how you made it

Question 3

What does proprietary or vendor-specific mean?

Answer 3

highlights something in a closed-source product that isn’t common

Question 4

Does proprietary or vendor-specific mean the same as closed-source?

Answer 4

No, and they’re not interchangeable.

Proprietary or vendor-specific means a product may not work with other products, have cables that are hard to find, not be user-friendly, and be difficult to repair.

Question 5

What is open source?

Answer 5

when the maker releases the instructions for making it

(not always software but usually is)

Question 6

What OS did older iPads use?

Answer 6

iOS same as apple phones (newer iPads run iPadOS)

Question 7

What OS does the Apple iWatch run?

Answer 7

watchOS

Question 8

What’s the difference between iOS and iPadOS?

Answer 8

Minor differences, iPadOS is better for multitasking and has better handwriting recognition support

Question 9

Besides Apple’s App Store, where else are Apple apps deployed from?

Answer 9

from providers of line-of-business apps specific to an organization (deployed only to devices under the organization’s private control)

[still subject to Apple’s licensing approval process]

Question 10

What is Android?

Answer 10

an open-source OS owned by Google based on Linux

Question 11

What role in the Android OS does Google and other vendors have?

Answer 11

Google = writes the core Android code versions named after desserts/candy

Vendors = customize the released Android versions to add unique hardware features and looks

Question 12

What is the difference between open source and public domain?

Answer 12

open source = available to the public for free, but owned by someone

public domain = the original owner of the software has relinquished ownership rights permanently

Question 13

Where are Android apps available to purchase and download?

Answer 13

Various app stores like Google Play, Amazon Appstore

Question 14

What’s the difference between iOS and Android in terms of standards and policies?

Answer 14

Apple has a tighter grasp on the development of apps and has stricter policies for third-party developers

Android is more lenient with third-party developers and makes it easier to install arbitrary (random) applications downloaded from a website

Question 15

What does GUI stand for? What is it?

Answer 15

Graphical User Interface

you interact with the OS by accessing icons on the screen

Question 16

Do mobile OSs have a command-line interface?

Answer 16

No, not current ones

Question 17

What are launchers? Where are they found?

Answer 17

programs on Android that enable users to customize their Android devices extensively

(different manufacturers make different launches, icon size, animations, gestures, more)

Question 18

What are virtual assistants?

Answer 18

enable quick vocal interactions to accomplish tasks

Question 19

What emergency features do smartphones have?

Answer 19

nearly all have an emergency notification feature to receive national emergency broadcasts (Emergency Alert System (EAS) in the US)

Question 20

How does the most recent 911 system (Enhanced 911 [E911]) triangulate the location of a phone?

Answer 20

it uses GPS and cellular networks to triangulate the phone by its distance from cell towers, its transmission delay time, and more

Question 21

What is mobile payment service?

Answer 21

using an app that’s connected to your bank account to automatically transfer funds to the merchant

(this is used in NFC when placing the phone near the pad to authorize the payment)