Question

Which of the following does not represent
an I/O device?
Answer
Plotter
ALU
Scanner
Light Pen​

Answer 1

Explanation:

the answer is scanner

Hope it is useful for you

Answer 2

Answer:

ALU is not a input/output device.

Explanation:

control unit, an arithmetic logic unit (ALU), a memory unit, and input/output (I/O) controllers. The ALU performs simple addition, subtraction, multiplication, division, and logic operations, such as OR and AND.so,ALU not a input/output device.