Monday, January 17, 2011

Input and Output

                         
Ergonomic Keyboard


-> It is a computer keyboard that designed with ergonomic considerations to minimize muscle strain and a host of related problems.
File:Apple Adjustable Keyboard.jpg

Ink - Jet printer

-> It is a type of computer printer that creates a digital image by propelling variable-sized droplets of ink onto paper. This is are the most commonly used type of printer.

File:Epson-inkjet-printer.jpgFile:Canon BJ-10v Lite inkjet printer with Scale.JPG




.                      Epson Inkjet Printer                                         Canon BJ-10V lite Inkjet Printer with scale

Laser Printer

-> It is a common type of computer printer that rapidly produces a high quality text and graphics on plain paper.

File:Hp laserjet 4200dtns.jpg


Magnetic - Ink character reader (MIRC)

-> It is a character recognizition technology used primarily by the banking industry to faciliate the processing of the cheques. This technology allows computer to read information off of printed document. Unlike barcodes or similar technologies. However, MICR codes can be easily read by humans.



Optical - character recognition (OCR)

-> It is the mechanical or electronic translation of scaneed images of handwritten, typewritten, or printed text into machine-encoded text. It is widely used to convert books and documents into electronic files. to computerize a record keeping system in office or to publish the text to website. 

Optical - mark recognition (OMR)


-> it is the process of capturing human - marked data from document forms such as surveys and tests. It usually used to university life and business life         
                                             . 


Plain paper that usuallty used for
college student


 
OMR test paper with recognition marks



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