barcode making

the "wand" is the simplest and least expensive input device available. it is durable and contains no moving parts. it must, however, come into contact with the bar code, which can present a challenge. if a bar code must be read more than barcode once, it making may become smeared or damaged and, in essence, unreadable. also, a wand is "human powered," which barcode means it must be held making at the proper angle and moved at the proper speed. for these reasons, a wand is the best choice when cost is the largest determining factor. the ccd, or barcode "charge couple device," is another common input device. a ccd is a very "aggressive" instrument, with a high ability to read bar codes quickly and easily. but it has two primary limitations. first, it has a short "read" range, and must making be held no more than 1 to 3 inches from the bar code.

the "wand" is the simplest and least expensive input device available. it is durable and contains no moving parts. it must, however, come into contact with the bar code, which can present a challenge. if a bar code must be read more than barcode once, it making may become smeared or damaged and, in essence, unreadable. also, a wand is "human powered," which barcode means it must be held making at the proper angle and moved at the proper speed. for these reasons, a wand is the best choice when cost is the largest determining factor. the ccd, or barcode "charge couple device," is another common input device. a ccd is a very "aggressive" instrument, with a high ability to read bar codes quickly and easily. but it has two primary limitations. first, it has a short "read" range, and must making be held no more than 1 to 3 inches from the bar code.