LINUX-8
USER LOGIN / SU
TERMINAL: Special-purpose
physical devices which usually had a screen and a keyboard, and attached to a
computer via a serial line, either directly or via a dial-up modem. Terminals
were quite dumb devices, with little computation capabilities by their own:
their job was mainly to display fixed-sized text coming via the serial line
from the computer, and send data entered via the keyboard to the computer
through the serial line, much like a teletype but with a screen in place of
paper.
A device known as terminal which contains only few parts and a
monitor with integrated keyboard is used to access the mainframe computer.
Terminal connects with mainframe computer on serial console port. Once
connected it uses all resources such as CPU, RAM and Hard disk from mainframe
computer. The earliest terminals were also known as teletypes (abbreviated
TTY).
