3. INTRODUCTION
• Output device receive information from the CPU and Present it to the user in user
understandable form.
• Output device can normally be produce in two ways:
• Either on display unit or
• In a paper
• Form of output on Computer Screen which is in Electronic form is softcopy output
.
• Output on paper which is in non-electronic form is called hardcopy.
4. What is a Monitor ?
• VDT and terminals monitors introduced in 1980’s.
• The monitors are display devices are most-used output device on computer.
• Monitors are very similar to televisions but usually display information at a
much higher resolution.
• Monitors are very important because without them you
wouldn't be able to do anything.
5. History On Monitor
• VDT and terminals monitors introduced in 1980’s.
They only displayed text in 2 colours usually black
and green.
In 1981 IBM introduced the CRT monitors which
could display 16colours.
1990’s LCD monitors were introduced.
