An enquiry character is a code used by some devices to request a response for identification or connection establishment in computer communication. The purpose is to trigger a response from the receiving station to see if it’s still present. The response may include the station identifier, type of equipment, and status of the remote station. The ENQ character is used by the central station to request peripheral data stations to send or receive data.
Teletype Model 33 feedback drum was used to encode the consultation-answer message. Some teleprinters had a “programmable” drum that could hold a message of 20 or 22 characters. The message could be sent upon receipt of an inquiry signal or by pressing the “Here is” key.
FAQs
What is the purpose of an enquiry character?
The purpose of an enquiry character in computer communication is to request a response from the receiving station to see if it’s still present and to establish a connection.
What information is included in the response to an enquiry character?
The response to an enquiry character may include the station identifier, type of equipment, and status of the remote station.
How is the enquiry character used in teleprinters?
In teleprinters, the ENQ character is used by the central station to request peripheral data stations to send or receive data.
Final thoughts
The enquiry character is an essential component of computer communication, especially in establishing a durable connection. It allows transmitting devices to verify the presence and status of the receiving station by requesting a response, ensuring a successful data transmission.
