What are the different types of bar code readers?
There are three basic types of bar code readers: fixed, portable batch, and portable RF. Fixed readers remain attached to their host computer and terminal and transmit one data item at a time as the data is scanned. Portable batch readers are battery operated and store data into memory for later batch transfer to a host computer. (More advanced portable readers can operate in non-portable mode too, often eliminating the need for a separate fixed reader.) Portable RF Readers are battery operated and transmit data as on-line; more importantly they can instruct the operator from real-time data.portables as fixed readers A basic bar code reader consists of a decoder and a scanner, (a cable is also required to interface the decoder to the computer or terminal). The basic operation of a scanner is to scan a bar code symbol and provide an electrical output that corresponds to the bars and spaces of a bar code. A decoder is usually a separate box which takes the digitized bar space patterns, d
