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In the 1970s, multi-frequency signaling systems came into use for international direct distance dialing (IDDD) which used the frequency of 2600 Hz in line signaling in two-frequency mode with 2400 Hz, for line seizure during call setup, and for tear-down. 2600 Hz signaling was a standard for many international signaling systems, [8] such as the ...
A flat-panel display (FPD) computer monitor A cathode-ray tube (CRT) computer monitor. A computer monitor is an output device that displays information in pictorial or textual form.
Canon Inc. (Japanese: キヤノン株式会社; [note 1] Hepburn: Kyanon kabushiki gaisha) is a Japanese multinational corporation headquartered in Ōta, Tokyo, specializing in optical, imaging, and industrial products, such as lenses, cameras, medical equipment, scanners, printers, and semiconductor manufacturing equipment.
HP Inc. is an American multinational information technology company headquartered in Palo Alto, California, that develops personal computers (PCs), printers and related supplies, as well as 3D printing services.
Digital Equipment Corporation (DEC / d ɛ k /), using the trademark Digital, was a major American company in the computer industry from the 1960s to the 1990s. The company was co-founded by Ken Olsen and Harlan Anderson in 1957.
Yellow dots on white paper, produced by color laser printer (enlarged, dot diameter about 0.1 mm) Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and copiers produce on every printed page that identifies the specific device that was used ...
The HP Z800, HP Z600 and HP Z400 were announced in March 2009, offering Intel Nehalem-based Xeon processors and a new chassis design. [1] An entry-level model, HP Z200, was announced in January 2010 at CES 2010. [3] A small-form-factor version of the Z200, along with Intel Westmere Xeon processor refresh, were introduced to the lineup in March ...
The Me 209 V1 was powered by the DB 601ARJ, producing 1,156 kW (1,550 hp), but capable of reaching 1,715 kW (2,300 hp). This world record for a piston-engined aircraft was to stand until 1969, [ 42 ] when Darryl Greenamyer 's modified Grumman F8F Bearcat , Conquest I , broke it with a 777 km/h (483 mph) record speed.