Christy Mihaly - All about Apps

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APPS

CUTTING-EDGE TECHNOLOGY

by Christy Mihaly

ALL ABOUT

ABOUT THE AUTHOR

Christy Mihaly loves writing about science because it means shes always learning something new.

She has written for young readers about topics including advanced solar power technology, genetics,

and high-tech careers. She appreciates how apps help her work more efficiently and make more time

for fun. Her publications include books, articles, stories, and poetry for readers of all ages.

www.northstareditions.com

Copyright 2017 by North Star Editions, Lake Elmo, MN 55042. All rights reserved. No

part of this book may be reproduced or utilized in any form or by any means without written

permission from the publisher.

Produced for North Star Editions by Red Line Editorial.

Photographs : Georgejmclittle/Shutterstock Images, cover, 1; firemanYU/iStockphoto, 45;

Rawpixel.com/Shutterstock Images, 7; Marripopins/Shutterstock Images, 9; hocus-focus/

iStockphoto, 1011; Stuart Monk/Shutterstock Images, 1213; Burlingham/Shutterstock

Images, 14; ymgerman/Shutterstock Images, 17; monkeybusinessimages/iStockphoto, 1819;

DragonImages/iStockphoto, 20; dennizn/Shutterstock Images, 23; Ole Spata/picture-alliance/dpa/

AP Images, 24-25; Bart Everett/Shutterstock Images, 27; Matthew Corley/Shutterstock Images, 29

Content Consultant: M. Arcan Erturk, Postdoctoral Associate, University of Minnesota

ISBN

978-1-63517-010-8 (hardcover)

978-1-63517-066-5 (paperback)

978-1-63517-171-6 (ebook pdf)

978-1-63517-121-1 (hosted ebook)

Library of Congress Control Number: 2016949759

Printed in the United States of America

Mankato, MN

November, 2016

978-1-68444-289-8 (e-book)

Synched Read-Along Version by:

Triangle Interactive LLC

PO Box 573

Prior Lake, MN 55372

TABLE OF CONTENTS

CHAPTER 1

Apps to the Rescue

HOW IT WORKS

How Common Apps

Can Be Used

CHAPTER 2

What Makes an App Happen?

CHAPTER 3

Apps All Around

CHAPTER 4

Apps of the Future

Focus on Apps 30

Glossary 31

To Learn More 32

Index 32

CHAPTER

APPS TO THE RESCUE

A

n overloaded truck bounces down

a city street. It turns a corner too

fast, spilling half its load onto the

road. The driver speeds away, leaving a

sour-smelling mess. A crowd gathers.

Emergency workers arrive. What is that

stinky stuff in the street? Is it dangerous?

Apps can help emergency crews determine

whether substances are dangerous.

The emergency crews captain pulls

out her smartphone and gives it a few

taps. Soon, she identifies the material.

Its poison! The captain looks up how to

clean the spill safely. Shes using an app

called Wireless Information System for

Emergency Responders (WISER). WISER

gives emergency workers the information

they need to protect people. Its an app

that saves lives.

You probably dont have a mystery

mess on your hands. But apps can still

come in handy. Apps can help you find a

basketball score, listen to music, or get

answers to homework questions.

Some apps help runners keep track of how far they

have gone.

An app is a set of instructions that tells

a computer or mobile device how to do

something. Without these instructions, a

smartphone would be a useless block of

metal and plastic. The set of instructions

that make a computer or device work is

called

software . It is written in code , a

language that computers understand.

There are two kinds of software. One

kind is the operating system. This runs

the whole computer or device. The other

kind is application software, which is also

known as an app. Apps function within

the devices operating system. Apps make

a device do certain tasks, such as playing

videos or translating words from one

language to another.

Some apps turn a device into a tool,

such as a flashlight. Many apps are

games. Whether a person prefers solo

brain games or online contests with many

players, apps make these games happen.

Apps also keep friends connected.

Apps let people chat by video, share

photos, and send messages. Students

can even use apps for schoolwork. Apps

can track assignments. They make it

easy to do research and create charts or

slide shows. Apps can be useful in many

aspects of daily life.

A flashlight app turns a smartphone into a useful tool.

HOW IT WORKS

HOW COMMON

APPS CAN BE USED

Photos: collect your

pictures and videos

Messages: texting

Contacts: list friends, family,

and important information

Newsstand: newspapers,

news videos, and more

about current events

Calendar: keep track

of dates and deadlines

Camera: take photos

or videos

Maps: find maps

and directions

Clock: check the

time and set alarms

Game Center: choose

from thousands of

games to play

Music: listen to

tunes

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