Size: 1.5Gb Direct Download Processor: 1 GHz or higher with 2 or more cores on a supported processor RAM: 4 GB or greater Disk space: 64 GB or greater

Proteus is an electronic design automation software that combines circuit simulation, PCB design, and microcontroller simulation in one platform. It is widely used by engineers and students for designing and testing electronic circuits and embedded systems. Proteus supports a wide range of microcontroller families and provides tools for creating schematic diagrams, simulating circuits, and testing code before hardware implementation.

1. Version with no pre-installed third-party toolbars or add-ons
2. Portable version that installs without internet access or external dependencies