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  2. List of free electronics circuit simulators - Wikipedia

    en.wikipedia.org/wiki/List_of_free_electronics...

    List of free analog and digital electronic circuit simulators, available for Windows, macOS, Linux, and comparing against UC Berkeley SPICE.The following table is split into two groups based on whether it has a graphical visual interface or not.

  3. KiCad - Wikipedia

    en.wikipedia.org/wiki/KiCad

    KiCad (/ ˈ k iː ˌ k æ d / KEE-kad [7]) is a free software suite for electronic design automation (EDA). It facilitates the design and simulation of electronic hardware for PCB manufacturing . It features an integrated environment for schematic capture , PCB layout, manufacturing file viewing, ngspice -provided SPICE simulation , and ...

  4. Comparison of EDA software - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_EDA_software

    The world of electronic design automation (EDA) software for integrated circuit (IC) design is dominated by the three vendors Synopsys, Cadence Design Systems and Siemens EDA (Formerly Mentor Graphics, acquired in 2017 by Siemens) which have a revenue respectively of 4,2 billion US$, 3 billion US$ and 1,3 billion US$.

  5. QCAD - Wikipedia

    en.wikipedia.org/wiki/QCAD

    Precompiled packages are available for 32-bit and 64-bit Linux platforms, Microsoft Windows OS and macOS. QCAD is developed by RibbonSoft. Development on QCAD began in October 1999, starting with code from CAM Expert. QCAD 2, designed to "make QCAD more productive, more user friendly, more flexible and increase its compatibility with other ...

  6. Product key - Wikipedia

    en.wikipedia.org/wiki/Product_key

    Windows 95 retail product keys take the form XXX-XXXXXXX. [2] To determine whether the key is valid, Windows 95 performs the following checks: The first 3 characters must not be equal to 333, 444, 555, 666, 777, 888 or 999. The last 7 characters must all be numbers from 0-8. The sum of the last 7 numbers must be divisible by 7 with no remainder.

  7. Product activation - Wikipedia

    en.wikipedia.org/wiki/Product_activation

    Product activation is a license validation procedure required by some proprietary software programs. Product activation prevents unlimited free use of copied or replicated software. Unactivated software refuses to fully function until it determines whether it is authorized to fully function. Activation allows the software to stop blocking its use.

  8. System Locked Pre-installation - Wikipedia

    en.wikipedia.org/wiki/System_Locked_Pre-installation

    System Locked Pre-installation (SLP), also referred to as OEM Activation, is a product activation procedure for Microsoft Windows used by major OEMs of laptops and pre-built PCs wherein a Windows product key is added and locked to the machine's firmware before mass distribution. SLP product keys cannot be moved to other machines.

  9. Fritzing - Wikipedia

    en.wikipedia.org/wiki/Fritzing

    Fritzing's schematic view. The software was created with inspiration from the Processing programming language and the Arduino microcontroller [6] and allows a designer, artist, researcher, or hobbyist to document their Arduino-based prototype and create a PCB layout for manufacturing.