Naomi+Grant

**I am Naomi Grant and I will be presenting information on how these devices function and their uses: barcode reader, touch terminals,point of sale (POS), biometric systems and sound capture.**

 __**1.Barcode Reader**__ A barcode reader, otherwise called a barcode scanner, is an electronic device for reading printed barcodes. A regular computer cannot read bar codes. A special scanner is needed in order to scan the entire code and then translate the code's formula so that it becomes a readable piece of data. Most barcode readers contain a decoder circuitry analysing the bar code's image data provided by the sensor then sending the barcode's content to the scanner's output port. This type of technology is also used in large businesses.Barcode scanners can come in several different forms. It will depend on the nature of your business as to what type will suit you best.

Some uses of a barcode reader are:
 * Used for asset management.
 * Used to easily scan items.
 * Used for tracking items.

 __**2.Touch Terminals**__  A touch terminal is a computer that lets you touch the screen to interact with it. Instead of using a mouse or trackball to get around the screen, you use your fingers to touch the places you want to "click". Touch terminals are the fastest pointing devices and have easier hand eye coordination than mice or keyboards.  Touch terminals can be found attached to computers as separate machines or connected to a network. They are also ATMs and some electronic cash registers that are touch terminals.

Some uses of a touch terminal are:


 * Used for easier interaction.
 * <span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive; font-size: 120%;">Used for easier access to cash registers and ATM s

<span style="background-color: #ffffff; color: #800080; display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center; vertical-align: baseline;"> <span style="background-color: #ffffff; color: #800080; display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center; vertical-align: baseline;"><span style="background-color: #ffffff; color: #800080; font-family: 'Comic Sans MS',cursive; font-size: 130%; vertical-align: baseline;">__**3.Point of Sale (POS)**__ <span style="background-color: #ffffff; display: block; font-family: 'Comic Sans MS',cursive; font-size: 14px; text-align: left;"> A point of sale, otherwise called a point of purchase, refers to the capturing of data and customer payment information at a physical location when goods or services are bought and sold. The POS transaction is captured using a variety of devices which include computers, cash registers, optical and bar code scanners, magnetic card readers, or any combination of these devices. <span style="background-color: #ffffff; color: #000000; font-family: 'Comic Sans MS',cursive; text-align: justify;">The device allows the person to accept electronic payments with debit and/or credit cards. The POS terminal transfers the money from the account of the cardholder to the person’s bank account.

<span style="background-color: #ffffff; display: block; font-family: 'Comic Sans MS',cursive; font-size: 120%; text-align: left;">Some uses of a touch terminal are:


 * <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 14px; text-align: left;"> Used to manage inventory better.
 * <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 14px; text-align: left;"> Used for better accuracy during checkouts.

<span style="background-color: #ffffff; color: #800080; display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center; vertical-align: baseline;"> <span style="background-color: #ffffff; color: #800080; display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center; vertical-align: baseline;"><span style="background-color: #ffffff; color: #800080; font-family: 'Comic Sans MS',cursive; font-size: 130%; vertical-align: baseline;">__**4.Biometric Systems**__ <span style="background-color: #ffffff; display: block; font-family: 'Comic Sans MS',cursive; font-size: 14px; text-align: left; vertical-align: baseline;"><span style="font-family: 'Comic Sans MS',cursive; font-size: 120%;">Biometric systems consists of methods for uniquely recognizing humans based upon one or more intrinsic physical or behavioural traits. The two categories of biometric identifiers include physiological and behavioural characteristics. <span style="font-family: 'Comic Sans MS',cursive; font-size: 120%;">Behavioural biometrics are generally used for verification while physical biometrics can be used for either identification or verification. The process comprises 4 main steps: sample capture, feature extraction, template comparison, and matching. At enrollment, a person's biometrics is captured by the scanner. The software converts the biometric input into a template and identifies specific points of data as "match points". The match points are processed using an algorithm into a value that can be compared with biometric data in the database.

<span style="background-color: #ffffff; display: block; font-family: 'Comic Sans MS',cursive; font-size: 120%; text-align: left;">Some uses of biometric systems are:


 * <span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive; font-size: 120%;">Used as a form of identity access management and access control.
 * <span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive; font-size: 120%;">Used to identify and verify individuals in groups that are under surveillance.
 * <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 14px; text-align: left;"><span style="font-family: 'Comic Sans MS',cursive; font-size: 120%;">Used for measuring and analyzing a person's unique characteristics.

__<span style="background-color: #ffffff; color: #800080; font-family: 'Comic Sans MS',cursive; font-size: 26px; text-align: center;">**5.Sound Capture** __ <span style="background-color: #ffffff; display: block; font-family: 'Comic Sans MS',cursive; font-size: 120%; text-align: left;">Capture is the process or means of obtaining and storing external data, particularly images or sounds, for use at a later time. There are various ways in which this can be done, however the best method depends on the application. <span style="background-color: #ffffff; color: #000000; display: block; font-family: 'Comic Sans MS',cursive; font-size: 13px; text-align: left;"><span style="font-family: 'Comic Sans MS',cursive; font-size: 120%;">In the past, the work of recording sound and music was carried out by professional recording studios. Before digital technology arrived, recordings were made by picking up sounds on a microphone which converted them to an analogue electrical signal. This signal was then transferred to another analogue medium, such as the grooves of a vinyl record or the changing patterns of metallic atoms on a magnetic tape. At the start of the digital revolution, analogue to digital conversion, and the transfer of digitally encoded sound to compact discs, could only be accomplished with sophisticated and expensive equipment. Nowadays, many personal computers come ready equipped with A/D (analogue to digital) electronics built in, and with a drive for writing CDs.

<span style="background-color: #ffffff; color: #000000; display: block; font-family: 'Comic Sans MS',cursive; font-size: 13px; text-align: left;"><span style="font-family: 'Comic Sans MS',cursive; font-size: 120%;">Some uses of sound capture are:
 * <span style="font-family: 'Comic Sans MS',cursive; font-size: 120%;">Used to record sounds and music.
 * <span style="font-family: 'Comic Sans MS',cursive; font-size: 120%;">A program that can capture sound can also mix, play, and edit the sounds.
 * <span style="background-color: #ffffff; color: #000000; font-family: 'Comic Sans MS',cursive; font-size: 120%;">Certain programs that can capture sound can also link these sound to a document.