Question

write some input device and output device of computer any three

Answer 1

output-
keyboard
mouse
cpu

input-
memory card

Answer 2

hey mate here is your answer
list of  basic Input Devices, Output devicesand  Both input–output devices  related to computer.

 Input Devices:

a)      Graphics Tablets

b)      Cameras

c)      Video Capture Hardware

d)     Trackballs

e)      Barcode reader

f)       Digital camera

g)      Gamepad

h)      Joystick

i)        Keyboard

j)        Microphone

k)      MIDI keyboard

l)        Mouse (pointing device)

m)    Scanner

n)      Webcam

o)      Touchpads

p)      Pen Input

q)      Microphone

r)       Electronic Whiteboard

s) OMR

t) OCR

u) Punch card reader

v)MICR (Magnetic Ink character reader)

w) Magnetic Tape Drive

 OUTPUT  DEVICES:

Monitor (LED, LCD, CRT etc)

Printers (all types)

Plotters

Projector

LCD Projection Panels

Computer Output Microfilm (COM)

Speaker(s)

Head Phone

Visual Display Unit

Film Recorder

Microfiche
hope its help you