What is the name of a solid piece of silicon that contains transistors, other components, and their connections?

Integrated Circuit

Explanation:

An Integrated Circuit (IC) is a small microchip that is mostly made of silicon and constitutes hundreds to thousands of tiny electronic components such as transistors and capacitors. ICs are multipurpose and are used as counters, data store, memory, and many more. They are built to support both analog and digital technology. Disassemble a computer, for instance, and you will see ICs pre-built somewhere around a circuitry board.