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  2. List of computer hardware manufacturers - Wikipedia

    en.wikipedia.org/wiki/List_of_computer_hardware...

    Arm Ltd. (sells designs only) Amazon (AWS Graviton is ARM-based); Apple Inc. (ARM-based CPUs) Broadcom Inc. (ARM-based, e.g. for Raspberry Pi) Fujitsu (its ARM-based CPU used in top supercomputer, still also sells its SPARC-based servers)

  3. Printed circuit board - Wikipedia

    en.wikipedia.org/wiki/Printed_circuit_board

    A printed circuit board (PCB), also called printed wiring board (PWB), is a laminated sandwich structure of conductive and insulating layers, each with a pattern of traces, planes and other features (similar to wires on a flat surface) etched from one or more sheet layers of copper laminated onto or between sheet layers of a non-conductive ...

  4. Microwave - Wikipedia

    en.wikipedia.org/wiki/Microwave

    Name Wavelength Frequency (Hz) Photon energy Gamma ray < 0.01 nm > 30 EHz > 124 keV X-ray: 0.01 nm – 10 nm: 30 EHz – 30 PHz: 124 keV – 124 eV Ultraviolet: 10 nm – 400 nm: 30 PHz – 750 THz: 124 eV – 3 eV Visible light: 400 nm – 750 nm: 750 THz – 400 THz: 3 eV – 1.7 eV Infrared: 750 nm – 1 mm: 400 THz – 300 GHz: 1.7 eV – 1 ...

  5. Microwave oven - Wikipedia

    en.wikipedia.org/wiki/Microwave_oven

    It was almost 1.8 metres (5 ft 11 in) tall, weighed 340 kilograms (750 lb) and cost about US$5,000 ($68,000 in 2023 dollars) each. It consumed 3 kilowatts, about three times as much as today's microwave ovens, and was water-cooled. The name was the winning entry in an employee contest. [17]

  6. Microwave engineering - Wikipedia

    en.wikipedia.org/wiki/Microwave_Engineering

    Specialties include microwave and RF integrated circuit design, antenna engineering, computational electromagnetics, radiowave propagation, radar and remote sensing systems, image processing, and THz imaging. [5] [6] Tufts University offers a Microwave and Wireless Engineering certificate program as part of its graduate studies programs. It can ...

  7. Microwave power meter - Wikipedia

    en.wikipedia.org/wiki/Microwave_power_meter

    A microwave power meter is an instrument which measures the electrical power at microwave frequencies typically in the range 100 MHz to 40 GHz. Usually a microwave power meter will consist of a measuring head which contains the actual power sensing element, connected via a cable to the meter proper, which displays the power reading.