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Howard Johnson is an electrical engineer, known for his consulting work and commonly referenced books on the topic of signal integrity, especially for high speed electronic circuit design. He served as the chief technical editor for Fast Ethernet and Gigabit Ethernet standardisation, [1] and was recognized by the IEEE as an "Outstanding ...
Power Mac G4. 350 MHz – 1.42 GHz (Up to 2 GHz processors through 3rd-party upgrades.) The Power Mac G4 is a series of personal computers designed, manufactured, and sold by Apple Computer from 1999 to 2004 as part of the Power Macintosh line. Built around the PowerPC G4 series of microprocessors, the Power Mac G4 was marketed by Apple as the ...
The Apple A7 is a 64-bit system on a chip (SoC) designed by Apple Inc., part of the Apple silicon series. It first appeared in the iPhone 5S, which was announced on September 10, 2013, and the iPad Air and iPad Mini 2, which were both announced on October 22, 2013. Apple states that it is up to twice as fast and has up to twice the graphics ...
The Apple A8 is a 64-bit ARM-based system on a chip (SoC) designed by Apple Inc., part of the Apple silicon series, It first appeared in the iPhone 6 and iPhone 6 Plus, which were introduced on September 9, 2014. [11] Apple states that it has 25% more CPU performance and 50% more graphics performance while drawing only 50% of the power of its ...
The Apple QuickTake (codenamed Venus, Mars, Neptune) is one of the first consumer digital camera lines. [1] It was launched in 1994 by Apple Computer and was marketed for three years before being discontinued in 1997. Three models of the product were built including the 100 and 150, both built by Chinon; and the 200, built by Fujifilm.
A magnet motor or magnetic motor is a type of perpetual motion machine, which is intended to generate a rotation by means of permanent magnets in stator and rotor without external energy supply. Such a motor is theoretically as well as practically not realizable. [1][2] The idea of functioning magnetic motors has been promoted by various hobbyists.
The PowerBook Duo is a line of subnotebooks manufactured and sold by Apple Computer from 1992 until 1997 as a more compact companion to the PowerBook line. Improving upon the PowerBook 100 's portability (its immediate predecessor and Apple's third-smallest laptop), the Duo came in seven different models. They were the Duo 210, 230, 250, 270c ...
The iPad (4th generation) [15] (marketed as iPad with Retina display, [16] colloquially referred to as the iPad 4) [17] [18] is a tablet computer produced and marketed by Apple Inc. Compared to its predecessor, the third-generation iPad, the fourth-generation iPad maintained the Retina Display but featured new and upgraded components such as the Apple A6X chip and the Lightning connector ...