Changes

==Cell phones==

==Cell phones==

You are right! The first word that comes to our mind is a cell phone. You may have seen many people carry a cell phone these days.  Can you make a list of all the things a cell phone does?  

You are right! The first word that comes to our mind is a cell phone. You may have seen many people carry a cell phone these days.  Can you make a list of all the things a cell phone does?  

[[File:mindmapofcellphone.jpg|400px]]

 

A cell phone functions like a phone, a camera and a computer.  Yet, it does all of this using a few  components.

|[[File:mindmapofcellphone.jpg|400px]]

|A cell phone functions like a phone, a camera and a computer.  Yet, it does all of this using a few  components. If you open up a cell phone, you will see the following parts:

If you open up a cell phone, you will see the following parts:

#'''A circuit board''' : This is the brain of the cellphone and gives all the instructions to the phone. This contains a set of integrated circuits for giving instructions to the cell phone also. A computer has a similar circuit board also.

#'''A circuit board''' : This is the brain of the cellphone and gives all the instructions to the phone. This contains a set of integrated circuits for giving instructions to the cell phone also. A computer has a similar circuit board also.

#'''A keyboard''' : This is also very similar to the computer keyboard and you use the key board to operate the cell phone.

#'''A keyboard''' : This is also very similar to the computer keyboard and you use the key board to operate the cell phone.

#'''Display :''' This is similar to the computer monitor.

#'''Display :''' This is similar to the computer monitor.

Other parts include a microphone, antenna, speaker and a charger.

Other parts include a microphone, antenna, speaker and a charger.

One of the important parts of the cell phone is called the  SIM card.  The SIM card connects the phone to the network, your location. This helps the phone connect to a cell phone network and can also store phone numbers. It can be removed from one phone and put in any other cell phone.   

One of the important parts of the cell phone is called the  SIM card.  The SIM card connects the phone to the network, your location. This helps the phone connect to a cell phone network and can also store phone numbers. It can be removed from one phone and put in any other cell phone.

|}  

Lab exercises

Lab exercises

1. Draw a concept map of cell phone using Freemind. Your concept map can include all the features of a cell phone, charges on a cell phone, cell phone providers, etc.

1. Draw a concept map of cell phone using Freemind. Your concept map can include all the features of a cell phone, charges on a cell phone, cell phone providers, etc.