The mouse, game controllers, touch screens, and styluses are all types of (a)   devices. 

Flatbed, document, and portable are types of (a)   that accept documents and convert them into machine-readable form. 

Supermarkets use (a)   code readers to scan codes printed on product containers. 

The most common card reader is the (a)   card reader, which reads encoded information stored on a thin magnetic strip located on the back of the card.  

(a)   (acronym-one word) tags are tiny chips that can be embedded into almost anything and contain information used to track and locate lost pets; to monitor production and update inventory; to record prices, product descriptions, and locations of retail items.  

Optical- (a)   recognition is often used to score standardized multiple-choice tests. 

(a)   are specialized digital video cameras that capture images and send them to a computer for broadcast over the Internet. 

Digital (a)   connect to computers and project computer output and can control the computer with the use of a special pen. 

(a)   printers use a technology similar to that used in a photocopying machine.