| Perhaps you already have heard a lot of times | | | | scanner scans the bar code and get the data and |
| about an RF device. But what do you think it | | | | display the information on the monitor. A credit |
| really is? What are the benefits it can give to | | | | card has to be swiped or inserted into a slot for |
| users and to the society as a whole? When | | | | the machine to read and display information. In |
| someone such as a friend or child asks you what | | | | the same way, a radio frequency device has to |
| does this thing means, how will you explain? Well, | | | | scan the radio frequency ID to get and display |
| you do not need to be an expert in order to | | | | the information, only that this type of gadget is |
| understand and be able to relate to others the | | | | able to perform far better than what the ordinary |
| meaning of the subject. The term simply stands | | | | gadgets can do. |
| for radio frequency. So the whole thing could | | | | A radio frequency device can do what ordinary |
| mean just anything, any gadget, tool, or machine | | | | scanners cannot. For example, with a bar code |
| that is equipped with this unique capability to | | | | scanner you need to scan each bar code that is |
| receive and transmit radio frequency signals in | | | | located at the back of grocery items in order to |
| order to serve a purpose. Its common | | | | get the total amount. This can take longer and |
| components are a tiny chip that has the capability | | | | sometimes complicated especially when the bar |
| to carry data and an antenna that catches radio | | | | codes have not been well printed or not clearly |
| frequency signals. | | | | visible. The scanner cannot read the data. In this |
| A radio frequency device works similarly to an | | | | case, the cashier has to manually input all the |
| ordinary bar code scanner that is used in a point | | | | lengthy digits using the computer keyboard in |
| of sale terminal in shopping malls and grocery | | | | order to get correct reading. But with the RF |
| stores. Or to a swiping slot or pad that scans a | | | | device, you can just put all items in the bag and |
| magnetic strip that is located at the back of a | | | | have it scanned once then you get the total. |
| credit card or an ATM card. The bar code | | | | |