Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 24 - CT_AI_Class-5
P. 24

    Data that is collected and organised helps to understand patterns. These patterns
                      help you to make information. For example, doctors use data to study diseases, app

                      developers use data to improve their apps and AI systems use data to make better
                      decisions.

                      SOURCES OF DATA

                      Data doesn’t appear out of nowhere. It is collected from the world around us every

                      minute of the day. There are three main places where data comes from: sensors
                      and devices, people and the Internet. Let’s look at each one.

                      Sensors and Devices

                      A sensor is a tiny part inside an electronic device that picks up information from the
                      real world. It detects things such as heat, light, sound or movement and turns them
                      into data. Sensors are found inside almost every gadget you can think of.

                      Here are some everyday examples of how sensors collect data:

                       Temperature: The thermometer sensor inside

                         an air conditioner reads how warm the room
                         is.  This tells  the  machine  exactly  how much
                         cooling is needed to keep you comfortable.

                                                                Movement: A step-counter  inside  a fitness

                                                                   band  or smartwatch tracks  your  motion. It
                                                                   uses  this  movement data  to  calculate  how
                                                                   many steps you have taken during the day.

                       Vision: The camera in a mobile phone captures
                         light to create photographs and videos. These

                         images and clips are known as visual data.

                                                                Sound: A microphone picks up your voice and
                                                                   converts  the sound  waves into  audio  data.

                                                                   This allows you to talk to friends on a video call
                                                                   or record a voice note.

                       Location: A Global Positioning System (GPS)
                         chip receives signals from satellites in space
                         to work out your precise position. This location

                         data helps you find your way using digital maps.

                       22        Artificial Intelligence (CT & AI)-V

| 19 20 21 22 23 24 25 26 27 28 29 |