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The host sent ASCII characters to the printer using seven of eight data pins, pulling them high to +5V to represent a 1. When the data was ready, the host pulled the STROBE pin low, to 0 V. The printer responded by pulling the BUSY line high, printing the character, and then returning BUSY to low again. The host could then send another character.
An IEEE 1284 36-pin female on a circuit board. In the 1970s, Centronics developed the now-familiar printer parallel port that soon became a de facto standard.Centronics had introduced the first successful low-cost seven-wire print head [citation needed], which used a series of solenoids to pull the individual metal pins to strike a ribbon and the paper.
A Direct Cable Connection dialog box on Windows 95. Direct Cable Connection (DCC) is a feature of Microsoft Windows that allows a computer to transfer and share files (or connected printers) with another computer, via a connection using either the serial port, parallel port or the infrared port of each computer.
The white screen of death that appears on Dell computers. A White Screen of Death appears on several other operating systems, content management systems, [6] and on some BIOS, such as from Dell. It can be seen on iOS 7, and also when a white iPhone 5 or later or a white 5th generation iPod Touch screen freezes. Everything on the screen but the ...
A null modem adapter. Null modem is a communication method to directly connect two DTEs (computer, terminal, printer, etc.) using an RS-232 serial cable.The name stems from the historical use of RS-232 cables to connect two teleprinter devices or two modems in order to communicate with one another; null modem communication refers to using a crossed-over RS-232 cable to connect the teleprinters ...
Find out how age and weight go together, here. Plus, expert tips for losing weight after 50, including diet plans, calorie needs, and low-impact workouts.
J.D. Power released its 2024 mortgage lender customer satisfaction survey — and the results are surprising. Here are the major changes in lender satisfaction.
Printers can be connected to computers in many ways: directly by a dedicated data cable such as the USB, through a short-range radio like Bluetooth, a local area network using cables (such as the Ethernet) or radio (such as WiFi), or on a standalone basis without a computer, using a memory card or other portable data storage device.