Question

cpu is
1) input device
2)no device
3) processing device​

Answer 1

CPU is processing device

$\small\mathsf\color{lightgreen}useful?\: \color{white}\longrightarrow\: \color{orange}brainliest!$

Answer 2

Answer:

Is CPU an input device? ... In this sense, the CPU is both an input device and output since it is both reading and writing (albeit to memory). In the traditional sense, input devices take external information of some form and deliver it to memory.