Mobile Devices Overview

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Questions and Answers

What distinguishes a mobile device from an external hard drive?

  • Mobile devices do not require a user interface.
  • External hard drives are portable like mobile devices.
  • Mobile devices can send and receive information wirelessly. (correct)
  • External hard drives can operate without electricity.

Which of the following is NOT a characteristic of mobile devices?

  • Can function without physical connection to a network.
  • Primarily designed for stationary use. (correct)
  • Includes features like touchscreens for user interaction.
  • Operates using a battery for power storage.

Which mobile device is described as being optimized for text reading?

  • Smartwatch
  • Handheld gaming console
  • Smartphone
  • E-reader (correct)

What is a common function included in many mobile devices?

<p>Voice or video calling capabilities. (C)</p> Signup and view all the answers

Which of the following best describes tablets?

<p>They may have cellular and Wi-Fi connectivity. (D)</p> Signup and view all the answers

What component is independent of hardware in mobile devices?

<p>Software programming (C)</p> Signup and view all the answers

Which of the following mobile devices functions most similarly to a desktop computer?

<p>Laptop computer (B)</p> Signup and view all the answers

What feature is commonly included in smartwatches?

<p>They may operate as an extension of a smartphone. (A)</p> Signup and view all the answers

What is the primary purpose of mobile system software?

<p>To provide core functions such as operating systems and utilities (C)</p> Signup and view all the answers

Which of the following accurately describes native mobile apps?

<p>They are designed specifically for one platform. (D)</p> Signup and view all the answers

What is a characteristic feature of hybrid mobile apps?

<p>They run through web browsers but can be installed like native apps. (C)</p> Signup and view all the answers

How do web mobile apps typically adapt when accessed from a mobile device?

<p>They shift to a different design optimized for mobile use. (D)</p> Signup and view all the answers

Which of the following is NOT a function of mobile operating systems?

<p>Running standard office applications (C)</p> Signup and view all the answers

What programming language is primarily used for developing hybrid mobile apps?

<p>HTML5 (D)</p> Signup and view all the answers

What defines mobile application software?

<p>It is designed to run on mobile devices such as smartphones and tablets. (A)</p> Signup and view all the answers

Which of these types is NOT classified as mobile software?

<p>Standard desktop software (C)</p> Signup and view all the answers

Which characteristic of mobile computing allows users to maintain the same service while changing their physical location?

<p>User mobility (B)</p> Signup and view all the answers

What is the primary purpose of mobile software in mobile computing systems?

<p>To control mobile hardware and access sensors (D)</p> Signup and view all the answers

Which of the following is NOT a characteristic of mobile computing?

<p>Data staticity (A)</p> Signup and view all the answers

Which type of mobility refers to the ability of a user to switch between different devices while using the same service?

<p>Device mobility (B)</p> Signup and view all the answers

Which component is NOT considered part of a mobile computing system?

<p>Mobile applications (C)</p> Signup and view all the answers

What describes the structure of a mobile computing system?

<p>It is a distributed system connected via a wireless network. (A)</p> Signup and view all the answers

Which example is NOT classified as mobile hardware?

<p>Desktops (B)</p> Signup and view all the answers

Which operating system is commonly associated with mobile computing devices?

<p>Google's Android (A)</p> Signup and view all the answers

What is a key feature that mobile operating systems typically provide?

<p>Bluetooth and Wi-Fi connectivity (C)</p> Signup and view all the answers

Which wireless network type is NOT mentioned as part of mobile communication?

<p>Fiber-optic networks (B)</p> Signup and view all the answers

Which principle of mobile computing refers to the ability of devices to operate in a movable environment?

<p>Portability (D)</p> Signup and view all the answers

What does the Quality of Service (QoS) refer to in the context of mobile computing?

<p>The reliability and performance of network connectivity (C)</p> Signup and view all the answers

What is one of the advantages of mobile computing related to research?

<p>Ease of Research (B)</p> Signup and view all the answers

In mobile computing, interactivity refers to what aspect?

<p>The connectedness of devices sharing data and collaborating (B)</p> Signup and view all the answers

Which of the following is NOT a characteristic of connectivity in mobile computing?

<p>Dependency on fixed location (A)</p> Signup and view all the answers

What does individuality in mobile computing imply for portable devices?

<p>Ability to meet and adapt to individual user needs (A)</p> Signup and view all the answers

What programming language does Xamarin primarily use for mobile app development?

<p>C# (C)</p> Signup and view all the answers

Which of the following is a feature of Visual Studio?

<p>Universal Windows Platform development (C)</p> Signup and view all the answers

What is the primary role of JDK in Java application development?

<p>Compiling Java programs (C)</p> Signup and view all the answers

What type of application can run on any Windows-powered device?

<p>Universal Windows Platform applications (D)</p> Signup and view all the answers

What distinguishes a software development framework from a development platform?

<p>Frameworks offer preset tools and libraries. (B)</p> Signup and view all the answers

Which of the following frameworks is specifically mentioned as popular for mobile development?

<p>React Native (B)</p> Signup and view all the answers

What component does Java Runtime Environment (JRE) provide to run Java applications?

<p>Java Virtual Machine (C)</p> Signup and view all the answers

Which factor is NOT considered when developing mobile applications?

<p>Internet speed (B)</p> Signup and view all the answers

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Study Notes

What is a Mobile Device?

  • A mobile device is a portable handheld computer that functions without being physically connected to a network and power source.
  • Mobile devices must be able to send and receive information wirelessly.
  • Examples include smartphones, tablets, laptops, smartwatches, e-readers, and handheld gaming consoles.

Mobile Device Components

  • Mobile devices consist of hardware, software, and a mobile system.
  • Mobile hardware includes the physical components of the device, such as the screen, processor, and battery.
  • Mobile software includes the operating system and applications that runon the device.
  • The mobile system refers to the software and hardware that work together to enable the device to function.

Mobile System Software

  • An operating system (OS) is designed specifically for mobile devices.
  • Mobile OSs are responsible for defining features and functions of the device, including keypads, application synchronization, and text messaging.
  • Mobile application software refers to programs designed to run on mobile devices.
  • Native mobile apps are designed for a specific platform (iOS, Android, Windows).
  • Web apps are responsive websites that adapt to mobile devices.
  • Hybrid mobile apps function through web browsers and are developed using HTML5.

Mobile Computing

  • Mobile computing refers to the use of mobile devices to access and transmit data wirelessly.
  • Key characteristics of mobile computing include user mobility, network mobility, device mobility, session mobility, service mobility, and host mobility.

Mobile Computing System

  • A mobile computing system involves clients or nodes connected through a wireless network.
  • These networks allow for anytime, anywhere computing.

Mobile Computing Principles

  • Portability : Devices should be physically portable and have sufficient processing power.
  • Connectivity : High level network availability is required with minimal lag/downtime.
  • Interactivity : Nodes must actively interact with each other.
  • Individuality : Mobile computing systems should adapt to individual needs and provide contextual information.

Mobile Computing Advantages

  • Location Flexibility
  • Saves Time
  • Enhanced Productivity
  • Ease of Research
  • Entertainment : Streaming video and audio on the go.

Mobile Application Development (MAD) Factors

  • Platforms and Device Compatibility: Ensure app runs on target platforms and devices seamlessly.
  • Screen Size: Design for different screen sizes (smartphones vs tablets).
  • Screen Density: Optimize graphics and text clarity for varying screen resolutions.
  • User Interaction: Smooth and intuitive interface design.
  • Phone Function Integration: Leverage device features like camera, GPS, etc.
  • Resource Management: Efficient resource use for battery life and performance.

Frameworks

  • A framework is a software skeleton that provides tools, libraries, and other components.
  • Xamarin: Enables cross-platform native apps using C#.
  • React Native, Ionic, Flutter: Popular cross-platform frameworks.
  • JDK (Java Development Kit): Software development kit for Java applications.
  • JRE (Java Runtime Environment): Required to run Java applications.
  • JVM (Java Virtual Machine): Enables computers to run Java programs.

Bytecode

  • Bytecode is machine-readable code that is interpreted into binary code by a computer's processor.

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