Microprocessors are often referred to as the brain of computing devices, responsible for executing the instructions stored in the device's memory. There are several synonyms that can be used in place of the term microprocessor, including CPU (central processing unit), processor, chip, silicon chip, microcontroller, and integrated circuit. Each of these terms refers to the same basic technology, but may refer to specific types or uses of microprocessors. For example, a microcontroller is a type of microprocessor that is typically used in embedded systems and small electronic devices. Integrated circuits, on the other hand, may contain multiple microprocessors or other electronic components on a single chip.