Input and Output

Here we go on input and output :

1) Ergonomic Keyboard - It is design specially to reduced the strains on the human muscles. That is the reason why it is design in a way where our hands can rest comfortably on it.

2) Ink-jet Printer - This printer is widely used at home. It functions by producing small droplets to be sprayed on paper to produce the image being printed. The digital image is almost sprayed onto paper. This type of printers are inexpensive. Epson, HP, Lexmark are some brands who sell these ink-jet printers.

3) Laser Printer - A laser printer is a type of computer printer that rapidly produces high quality text and graphics on plain paper. laser printers employ a xerographic printing process but differ from analog photocopiers in that the image is produced by the direct scanning of a laser beam across the printer's photoreceptor.

4) Magnetic-ink Character Reader - also known as MICR is a character recognition technology used primarily by the banking industry to facilitate the processing of cheques. The technology allows computers to read information (such as account numbers) off of printed documents. Unlike barcodes or similar technologies, however, MICR codes can be easily read by humans.

5) Optical-character Recognition - also associated with the short form OCR, is the mechanical or electronic translation of scanned 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 an office, or to publish the text on a website. OCR makes it possible to edit the text, search for a word or phrase, store it more compactly, display or print a copy free of scanning artifacts, and apply techniques such as machine translation, text-to-speech and text mining to it.

6) Optical-mark Recognition - also known as OMR, is the process of capturing human-marked data from document forms such as surveys and tests. Many traditional OMR devices work with a dedicated scanner device that shines a beam of light onto the form paper. The contrasting reflectivity at predetermined positions on a page is then utilized to detect the marked areas because they reflect less light than the blank areas of the paper.

Thats all for now =)