| Subject | English | Spanish |
| ed. | Adobe Reader | Lector de Adobe |
| comp., MS | all-in-one card reader | lector de tarjetas multi formato (A flash card reader with slots that support the majority of card formats without the need of either a camera adaptor or external power) |
| IT | alphanumeric optical reader | lector óptico alfanumérico |
| automat. | alphanumeric reader | lector alfanumèrico |
| IT | background reader | lector subordinado |
| IT | badge reader | lector de distintivo |
| IT | badge reader | lector de tarjetas de identificación |
| IT | badge reader | lector de fichas de identificación |
| 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 |
| IT | bar reader | lectora de código de barras |
| IT | barcode reader | lectora de código de barras |
| IT | bar-code reader | lector de código de barras |
| comp., MS | BitLocker To Go Reader | Lector de BitLocker To Go (A user interface tool that is used to unlock external drives locked by BitLocker To Go and view/copy files in the drive) |
| el. | card reader | desalcatorizador |
| el. | card reader | deseudoaleatorizador |
| commun. | card reader | mesa de situación geográfica |
| commun. | card reader | lectora de fichas |
| IT, tech. | card reader | lectora |
| IT, transp. | card reader | lector de tarjetas |
| IT, tech. | card reader | lectora de tarjetas |
| comp., MS | card reader | lector de tarjetas (An input device used chiefly for identification purposes that reads information that has been magnetically encoded, usually in two tracks, on a plastic card, such as a credit card or an employee badge) |
| IT | card reader-punch | lector-perforador de tarjetas |
| gen. | CD-ROM reader | lector de CD-ROM |
| commun., IT | CD-ROM reader | lector de cederrón |
| gen. | CD-ROM reader | unidad de CD-ROM |
| dat.proc. | CD-ROM reader | lectora CD-ROM |
| meas.inst. | charger-reader | cargador-lector |
| meas.inst. | charger-reader | cargador-indicador |
| telegr. | coupled reperforator and tape reader | reemisor FRXD |
| telegr. | coupled reperforator and tape reader | reemisor con cinta perforada lectura completa |
| el. | coupled reperforator tape reader | retransmisor de cinta perforada con lectura automática total |
| fin., IT | credit card reader | dispositivo de lectura de tarjetas de crédito |
| commun., IT | desk top reader | lectora de mesa |
| IT | diskette reader | lectora de disquetes |
| IT, dat.proc. | document reader | lectora de documentos |
| IT, dat.proc. | document reader | lector óptico |
| earth.sc. | dosemeter charger reader | cargador-lector de dosímetro |
| IT | double side reader | lectora de doble cara |
| transp. | double-head reader | lector de doble pista |
| automat. | electronic print reader | lector electrónico de impresiones |
| pharma., chem. | Elisa plate reader | lector de placas ELISA |
| pharma., chem. | Elisa reader linked to a microcomputer | lector ELISA conectado a microordenador |
| commun. | enrolment of readers | inscripción de los lectores |
| earth.sc. | exposure meter charger reader | cargador-lector de exposímetro |
| comp., MS | fingerprint reader | lector de huellas digitales (An authentication device that digitally scans an individual's fingerprint, records the unique pattern of the individual's ridges and valleys, and determines if the pattern matches the pattern of the person who has access permission to a particular device, such as a computer or a phone, or to a Web site) |
| commun. | first reader | abecedario |
| commun. | first reader | alfabeto |
| commun., transp. | geographic card reader | lectora de mapas geográficos |
| IT | hand-held reader | lector de mano |
| UN, health. | human reader | lectura en voz alta |
| tech. | keyboard-reader switch | interruptor del lector del teclado |
| commun., IT | lap reader | minilector |
| IT | magnetic card reader | lector de ficha magnética |
| IT | magnetic reader | lector magnético |
| IT | magnetic reader head | cabeza de lectura magnética |
| comp., MS | magnetic stripe reader | lector de bandas magnéticas (A device used to interpret data that is encoded on a magnetic stripe card) |
| IT | magnetic tape reader | lector de cinta magnética |
| IT | magnetic-tape reader | lector de cinta magnética |
| IT | mark reader | lector de marcas |
| work.fl. | microfiche reader | lector de microfichas |
| work.fl. | microfiche reader-printer | lector-reproductor de microfichas |
| cultur., commun. | microfilm reader | lector de micropelículas |
| IT, dat.proc. | microfilm reader | lectora de microfilm |
| IT | microfilm reader | lector de microfilm |
| cultur. | microfilm reader with magnification | aparato ampliador para la lectura de microfilmes |
| nat.sc., chem. | microplate reader | lector de placas |
| comp., net. | news reader | cliente de noticias |
| comp., net. | news reader | lector de noticias |
| comp., MS, mexic. | NFC reader | lector de NFC (An external device that interacts with an NFC-enabled phone. These devices exchange data, such as contact details or secure payment information, with NFC-enabled phones through contactless communication) |
| comp., MS | NFC reader | lector NFC (An external device that interacts with an NFC-enabled phone. These devices exchange data, such as contact details or secure payment information, with NFC-enabled phones through contactless communication) |
| work.fl., IT | note to the reader | advertencia al lector |
| work.fl. | notice to readers | aviso a los lectores |
| IT | off-board reader | máquina de lectura situada en el domicilio |
| IT | on-board reader | lectora-registradora |
| IT, dat.proc. | on-line remote microfiche reader | lectora de microfichas remota en línea |
| IT | optical character reader | lectora óptica de caracteres |
| commun. | optical character reader | lector óptico de caracteres |
| IT | optical character reader | lector de caracteres ópticos |
| IT | optical character reader | lector óptico |
| IT | optical document reader | lectora de documentos |
| IT | optical document reader | lector óptico de documentos |
| IT | optical mark reader | lector óptico de marcas |
| tech. | optical mark reader | lectura óptica de marcas |
| dat.proc. | optical reader | lectora óptica |
| IT | optical reader | lector óptico |
| IT | optical reader form | formulario óptico |
| tech. | optical tape reader | lector óptico de cinta |
| commun., IT | paper tape reader | lector de cinta de papel |
| IT | paper tape reader/punch | lectora-perforadora de cinta |
| transp., mech.eng. | photoelectric reader milling machine | fresadora con explorador fotoeléctrico |
| nat.sc., chem. | plate reader | lector de placas |
| comp., MS | power reader | lector avanzado (A server role that grants read-only access to all dashboard elements on the PerformancePoint Server server, and is primarily used for alerts. It enables users to download dashboard elements from the PerformancePoint Server server) |
| automat. | printing reader | lector impresor |
| IT | proof-reader | corrector de pruebas |
| IT | punch tape reader/punch | lectora-perforadora de cinta |
| IT | punched card reader | lector de tarjeta perforada |
| IT | punched tape reader | lectora de cinta perforada |
| comp., MS | Queue Reader Agent | Agente de lectura de cola (The executable that reads the changes from subscribers in the queue and delivers the changes to the publisher) |
| gen. | reader board | información del día |
| IT, dat.proc. | reader circuit card | placa de lectura |
| commun., IT | reader-finder | lector buscador |
| nucl.phys. | reader for photoluminescence dosemeter | lector para dosímetro fotoluminiscente |
| nucl.phys. | reader for photoluminescence dosimeter | lector para dosímetro fotoluminiscente |
| earth.sc. | reader for photoluminescent dosemeter | lector de dosímetro de fotoluminiscencia |
| earth.sc. | reader for photoluminescent exposure meter | lector de exposímetro de fotoluminiscencia |
| nucl.phys. | reader for thermoluminescence dosemeter | lector para dosímetro termoluminiscente |
| nucl.phys. | reader for thermoluminescence dosimeter | lector para dosímetro termoluminiscente |
| earth.sc. | reader for thermoluminescent dosemeter | lector de dosímetro de termoluminiscencia |
| psychol. | reader immersion | inmersión del lector |
| commun., IT | reader/interpreter | lectora/intérprete |
| IT | reader/interpreter | rutina de lectura y selección |
| law | reader of judgments | lector de sentencias |
| earth.sc. | reader of thermoluminescent exposure meter | lector de exposímetro de termoluminiscencia |
| gen. | reader-printer | lector-reproductor (A machine that can be used to read a microform text and to make photocopies of the text) |
| cultur., commun. | reader-printer | aparato de lectura e impresión |
| IT | reader/printer | lectora/impresora |
| gen. | reader-printer | lector-impresor (A machine that can be used to read a microform text and to make photocopies of the text) |
| work.fl., commun. | reader's advisory service | servicio de orientación a los lectores |
| commun. | reader's card | tarjeta de usuario |
| commun. | reader's card | carnet de usuario |
| commun. | reader's service | servicio de orientación para el lector |
| IT, dat.proc. | reader-sorter | lector-clasificador |
| commun. | readers'letters | cartas al director |
| comp., MS | RSS Reader | Lector RSS (A program that retrieves updates and displays RSS formatted webpages and messages known as news feeds or web feeds. RSS readers can often aggregate and display news feeds from multiple sources) |
| meteorol. | RSS reader | lector de RSS |
| comp., MS | screen reader | lector de pantalla (An app that reads what is displayed on a screen and converts the input for presentation by means of non-visual output devices) |
| transp. | single-head reader | lector de pista sencilla |
| comp., MS | smart card reader | lector de tarjeta inteligente (A device that is installed in computers to enable the use of smart cards for enhanced security features) |
| IT | smart-card reader | lector de tarjetas inteligentes |
| cinema | sound reader | lector de sonido |
| pharma., chem. | spectrophotometric reader | lector espectrofotométrico |
| IT | stripe code reader | lector de códigos de barras |
| telegr. | tape-reader | lector de cinta |
| commun. | tape-reader | cabeza de lectura de cinta perforada |
| telegr. | tape-reader | lector de banda |
| comp., MS | Utility Reader | Lector de utilidad (A privilege that allows the user account to connect to the SQL Server Utility, see all viewpoints in the Utility Explorer in SSMS and see settings on the Utility Administration node in Utility Explorer in SSMS) |
| dat.proc., life.sc. | vein pattern reader | lector vascular |
| dat.proc., life.sc. | vein pattern reader | lector de patrones vasculares |
| dat.proc., life.sc. | vein reader | lector de patrones vasculares |
| dat.proc., life.sc. | vein reader | lector vascular |
| comp., MS | Windows Reader | Lector de Windows (An app that facilitates the reading of PDF and XPS files) |
| IT | writer-reader | escritor-lector |
| psychol. | writer-as-own-reader | escritor como propio lector |
| tech. | zero reader | marcador a cero |
| tech. | zero reader | pilotaje guiado instrumento de pilotaje al cero |
| avia. | zero reader | buscador de la pista de aterrizaje |