mikroLab for PIC is a toolkit for 8-bit PIC development. The EasyPIC v7, perhaps mikroElektronika's most famous board, supports more than 380 different PIC MCUs. MikroC for PIC is mikroE's most popular compiler.
8-bit PIC microcontrollers are the entry point for a huge number of embedded developers. It's a widespread architecture that has been around for decades, and is still developed by Microchip, with new chips being designed to address today's IoT and low power applications.