Major Types of Source Data Entry Devices are as follow
- Magnetic - Ink Character Reader/ Recognition (MICR): The MICR uses ink containing magnetic particles in order to print magnetic characters on cheques. This special type of ink is used to record cheque particulars such as the cheque amount, account number, branch number and so on. The information on the cheque is then scanned into a computer and stored permanently for bank purposes.
- Optical Character Reader/Recognition (OCR): OCR uses a photoelectric device to scan characters (printed or hand-written) and convert them into electric signals to be sent to the computer for processing, where they are converted into a text file. The billing system of an electric utility company is one such place where this application can be utilised.
- Optical Mark Reader (OMR): This is a special machine that uses infrared light to scan pencil marks on preprinted forms such as multiple-choice examination answer sheets, questionnaires and so on.
- Scanners: A scanner, which is similar to a photocopy machine, scans documents containing text or graphics as a full page and transmits the image to the computer as a code which enables the file to be saved as a digital file. There are different types of scanners, namely: the flatbed scanner, the hand-held scanner and the laser scanner which is built into the POS terminal used to read the barcode on an item.
- Barcode Reader: Barcodes are coded light and dark lines found on products of all kinds. The barcode is used as an identifier of the product on which it is found. A bar code reader is a scanning device with a sensitive tip which contains a light source and light detector used to read the barcodes on an item. Barcode readers are used at supermarkets and some libraries.
- Sensors: Various sensors are used to measure heat, light, sound, movement and pressure. The measurement recorded by the sensor is sent to the CPU where it is analyzed and the relevant output is given. Sensors can be used to monitor a patient with a heart condition, create characteristics in robots that mimic human senses etc.
- Magnetic - Ink Character Reader/ Recognition (MICR): The MICR uses ink containing magnetic particles in order to print magnetic characters on cheques. This special type of ink is used to record cheque particulars such as the cheque amount, account number, branch number and so on. The information on the cheque is then scanned into a computer and stored permanently for bank purposes.
- Optical Character Reader/Recognition (OCR): OCR uses a photoelectric device to scan characters (printed or hand-written) and convert them into electric signals to be sent to the computer for processing, where they are converted into a text file. The billing system of an electric utility company is one such place where this application can be utilised.
- Optical Mark Reader (OMR): This is a special machine that uses infrared light to scan pencil marks on preprinted forms such as multiple-choice examination answer sheets, questionnaires and so on.
- Scanners: A scanner, which is similar to a photocopy machine, scans documents containing text or graphics as a full page and transmits the image to the computer as a code which enables the file to be saved as a digital file. There are different types of scanners, namely: the flatbed scanner, the hand-held scanner and the laser scanner which is built into the POS terminal used to read the barcode on an item.
- Barcode Reader: Barcodes are coded light and dark lines found on products of all kinds. The barcode is used as an identifier of the product on which it is found. A bar code reader is a scanning device with a sensitive tip which contains a light source and light detector used to read the barcodes on an item. Barcode readers are used at supermarkets and some libraries.
- Sensors: Various sensors are used to measure heat, light, sound, movement and pressure. The measurement recorded by the sensor is sent to the CPU where it is analyzed and the relevant output is given. Sensors can be used to monitor a patient with a heart condition, create characteristics in robots that mimic human senses etc.
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