Lightboxes
Carrito
alb3819122

New York Telephone Exchange, 1880

A telephone exchange is a telephone system located at service centres (central offices) responsible for a small geographic area that provided the switching or interconnection of two or more individual subscriber lines for calls made between them, rather than requiring direct lines between subscriber stations. This made it possible for subscribers to call each other at homes, businesses, or public spaces. These made telephony an available and comfortable communication tool for everyday use, and it gave the impetus for the creation of a whole new industrial sector. Early switchboards in large cities usually were mounted floor to ceiling in order to allow the operators to reach all the lines in the exchange. The operators were boys who would use a ladder to connect to the higher jacks.
Compartir
pinterestPinterest
twitterTwitter
facebookFacebook
emailEmail

Añadir a otro lightbox

Añadir a otro lightbox
add to lightbox print share
¿Ya tienes cuenta? Iniciar sesión
¿No tienes cuenta? Regístrate
Compra esta imagen
Cargando...
Título:
New York Telephone Exchange, 1880
Descripción: Ver traducción automática
A telephone exchange is a telephone system located at service centres (central offices) responsible for a small geographic area that provided the switching or interconnection of two or more individual subscriber lines for calls made between them, rather than requiring direct lines between subscriber stations. This made it possible for subscribers to call each other at homes, businesses, or public spaces. These made telephony an available and comfortable communication tool for everyday use, and it gave the impetus for the creation of a whole new industrial sector. Early switchboards in large cities usually were mounted floor to ceiling in order to allow the operators to reach all the lines in the exchange. The operators were boys who would use a ladder to connect to the higher jacks.
Personas:
Crédito:
Album / Science Source
Autorizaciones:
Modelo: No - Propiedad: No
¿Preguntas relacionadas con los derechos?
Tamaño imagen:
4500 x 2794 px | 36.0 MB
Tamaño impresión:
38.1 x 23.7 cm | 15.0 x 9.3 in (300 dpi)
Palabras clave: