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Hughes telegraph, an early (1855) teleprinter built by Siemens and Halske. Electrical telegraphy is a point-to-point text messaging system, primarily used from the 1840s until the late 20th century. It was the first electrical telecommunications system and the most widely used of a number of early messaging systems called telegraphs, that were ...
Splice or butt connectors (primarily insulation displacement connectors) that permanently join two lengths of wire or cable. In computing, electrical connectors are considered a physical interface and constitute part of the physical layer in the OSI model of networking.
Banking. Wire transfer, bank transfer, or credit transfer, is a method of electronic funds transfer from one person or entity to another. A wire transfer can be made from one bank account to another bank account, or through a transfer of cash at a cash office. Different wire transfer systems and operators provide a variety of options relative ...
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Early childhood education. A test written by a four-year-old child in 1972, in the former Soviet Union. The lines are not ideal, but the teacher (all red writing) gave the best grade (5) anyway. Early childhood education (ECE), also known as nursery education, is a branch of education theory that relates to the teaching of children (formally ...
Educational technology as technological tools and media, for instance massive online courses, that assist in the communication of knowledge, and its development and exchange. This is usually what people are referring to when they use the term "edtech". Educational technology for learning management systems (LMS), such as tools for student and ...
Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Thus flag semaphore is a method of telegraphy, whereas pigeon post is not. Ancient signalling systems, although sometimes quite extensive and sophisticated as in ...
Remittance advice is a letter sent by a customer to a supplier to inform the supplier that their invoice has been paid. If the customer is paying by cheque, the remittance advice often accompanies the cheque. The advice may consist of a literal letter (e.g., "To Whom it May Concern: Your shipment of the 10th inst was received in good order ...
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