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A directly photographed image: Exposure mode: Auto exposure: White balance: Auto white balance: Focal length in 35 mm film: 28 mm: Scene capture type: Standard: Speed unit: Kilometers per hour: Speed of GPS receiver: 0.0013772130482337: Reference for direction of image: True direction: Direction of image: 193.11026767879: Reference for bearing ...
The fourth generation computers began with the shipment of CPS-1, the first commercial microprocessor microcomputer in 1972 and for the purposes of this list marks the end of the "early" third generation computer era. Note that third generation computers were offered well into the 1990s. The list is organized by delivery year to customers or ...
Third-generation computers were offered well into the 1990s; for example the IBM ES9000 9X2 announced April 1994 [30] used 5,960 ECL chips to make a 10-way processor. [31] Other third-generation computers offered in the 1990s included the DEC VAX 9000 (1989), built from ECL gate arrays and custom chips, [32] and the Cray T90 (1995).
Computers built after 1972 are often called fourth-generation computers, based on LSI (Large Scale Integration) of circuits (such as microprocessors) – typically 500 or more components on a chip. Later developments include VLSI (Very Large Scale Integration) of integrated circuits 5 years later – typically 10,000 components.
The RCA Model 70/35 was the fifth in the series of Spectra computers that was announced in September 1965 (first delivery in 1966). [9] [10] It was a medium-scale computer combining third-generation technology (including integrated circuits) [7] and speed in an efficient low-cost data system. The Spectra 70/35 handled a wide range of tasks at ...
A vacuum-tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry. While the history of mechanical aids to computation goes back centuries , if not millennia , the history of vacuum tube computers is confined to the middle of the 20th century.
The IBM System/370 (S/370) is a range of IBM mainframe computers announced as the successors to the System/360 family on June 30, 1970. The series mostly [b] maintains backward compatibility with the S/360, allowing an easy migration path for customers; this, plus improved performance, were the dominant themes of the product announcement.
The PowerPC 7xx is a family of third generation 32-bit PowerPC microprocessors designed and manufactured by IBM and Motorola (spun off as Freescale Semiconductor bought by NXP Semiconductors). This family is called the PowerPC G3 by Apple Computer (later Apple Inc.), which introduced it on November 10, 1997. A number of microprocessors from ...