| Subject | English | Spanish |
| comp., MS | bar code reader | lector de código de barras (An optical device that uses a laser beam to read and interpret bar codes, such as the Universal Product Codes, found on grocery products and other retail items) |
| IT | bar code reader | lector de códigos de barras |
| patents. | bar code readers | lectores de códigos de barras |
| gen. | bar code readers | lectores de código de barras |
| IT | bar code scanner | lector de código de barras |
| IT | bar code scanner | analizador de código de barras |