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complete board: MOS's developer kit for the 6502, widely used in a number of projects: Motorola MEK6800D2: Motorola 6800: 1976: complete board: MPT8080 Microtutor: Intel 8080: 1977: complete board: A trainer type single-board-computer. As recently as 2008, it remained in academic use. [6] As of 2011, the MPT8080 was still available for sale ...
A transistor computer, now often called a second-generation computer, [1] is a computer which uses discrete transistors instead of vacuum tubes. The first generation of electronic computers used vacuum tubes, which generated large amounts of heat, were bulky and unreliable.
Western Electric Co., Inc. was an American electrical engineering and manufacturing company that operated from 1869 to 1996. A subsidiary of the AT&T Corporation for most of its lifespan, Western Electric was the primary manufacturer, supplier, and purchasing agent for all telephone equipment for the Bell System from 1881 until 1984, when the Bell System was dismantled.
In electronics, emitter-coupled logic (ECL) is a high-speed integrated circuit bipolar transistor logic family. ECL uses an overdriven bipolar junction transistor (BJT) differential amplifier with single-ended input and limited emitter current to avoid the saturated (fully on) region of operation and the resulting slow turn-off behavior. [ 2 ]
SLT used silicon planar glass-encapsulated transistors and diodes. [2] SLT uses dual diode chips and individual transistor chips each approximately 0.025 inches (0.64 mm) square. [3]: 15 The chips are mounted on a 0.5 inches (13 mm) square substrate with silk-screened resistors and printed connections. The whole is encapsulated to form a 0.5 ...
Transistors of this type can be made very inexpensively and take up very little board space. Most models are readily available in large quantities from wholesale distributors. They are easy to find in small electronics stores because of their wide usefulness, making them a popular choice for hobby work and prototyping .
In 1980, the price of a 16 kW (kiloword, equivalent to 32 kB) core memory board that fitted into a DEC Q-bus computer was around US$3,000. At that time, core array and supporting electronics could fit on a single printed circuit board about 25 cm × 20 cm (10 in × 8 in) in size, the core array was mounted a few mm above the PCB and was ...
The "DR-1XX" transistor series line was a germanium type transistor and later years produced the power transistors series. Tung-Sol started transistor research in 1953 with engineering samples and delayed introduction as vacuum tube production were large and popular business. [ 40 ]
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