EXTERNAL DEVICES
· Provide
a means of exchanging data between the external environment and the computer.
·
Peripheral
device
- An external device connected to an I/O module.
·
Three
categories:
1) Human
readable
· Suitable
for communicating with the computer user
Eg
: Video display terminals (VDTs), printers
2) Machine
readable
· Suitable
for communicating with equipment
Eg : Magnetic disk and
tape systems, sensors and actuators
3) Communication
· Suitable
for communicating with remote devices such as a terminal, a machine readable
device, or another computer
HI FRIENDS I AM DHANESH. I ADD THIS BLOG FOR AN EDUCATION PURPOSE