1. Which device is a part of basic machine architecture? CPU ADC counter timer 2. A microcontroller normally has which device on the chip? counter interrupts I/O ADCa. CPUb. ADCc. counterd. timer Solution a) CPU is a part of basic machine architecture b) microcontroller unit is a small computer on a single integrated circuit containing a processor core, memory, and programmable input/output peripherals So the answer is I/O .that is (C).