This presentation summarizes the evolution of several common computer output devices: monitors, printers, speakers, plotters, projectors, and headsets. It traces the invention and early development of each device, such as the first monitor using CRT technology in 1922 and LCD replacing CRT in 2000. It also compares the primitive early versions of output devices to modern versions, such as early lights on display paper teletypes compared to today's head mounted displays. The presentation aims to explain the history and progression of output devices used to present information from computers.

1. PRESENTATION ON
EVOLUTION OF OUTPUT DEVICES
TO
PRESENT INFORMATION
BY
- SURESH
(STUDENT AT TALENT
SCULPTORS)

2. OBJECTIVES

3. WHAT IS AN OUTPUT DEVICE ?
 An output device is any device used to
send data from a computer to another
device or user. Most computer data output
that is meant for humans is in the form of
audio or video or text.
 Some of the most common output devices
that people are familiar with include
monitors, which produce video output;
speakers, which produce audio output; and
printers, which produce text or graphical
output.

4. WHAT ARE OUTPUT
DEVICES ?
MONITOR
(Jan 1 ,
1922)
PRINTER
(Jan 1,
1822)
SPEAKER
(Dec 14,
1981)
PLOTTER
(April 7,
1877)
PROJECTOR
(May 11,
1965)
HEADSET
(Jan 1,
1910)

5. EVOLUTION OF THE MONITOR
• The first monitors use CRT technology
(cathode ray rube) and firstly made in 1922.
• The earlier commercial version was produced
in 1954. This technology used for 50 years
until 2000 when the LCD technology replace it.
• Nowadays most of the displays use this
technology, and almost replaced the CRT
displays (almost in every area).
• And the newest type of display is OLED. (which
maybe familiar from Mobil phone especially
Samsung phones with AMOLED).

6. EVOLUTION OF THE PRINTER
• The first mechanical printer was invented by
Charles Babbage, for use with the Difference
Engine, which Babbage developed in 1822.
Babbage's printer utilized metal rods with printed
characters on each rod to print text on rolls of
paper that were fed through the device.
• In 1953, the first high-speed printer was
developed by Remington-Rand for use on
the computer.
• 1910 – Screen Printing
• 1925 – Dot Matrix Printing
• 1951 – Inkjet Printing
• 1969 – Laser Printing

7. EVOLUTION OF THE PLOTTER
When was the first plotter invented?
• The first plotter was invented in 1953 by
Remington-Rand. It was used in conjunction with
the computer to created technical drawings.
Advantages of plotters
• Plotters can work on very large sheets of paper
while maintaining high resolution.
• Plotters allow the same pattern to be drawn
thousands of times without any image degradation.
Disadvantages of plotters
• Plotters are quite large when compared to a
traditional printer.
• Plotters are also much more expensive than a
traditional printer.

8. EVOLUTION OF THE PROJECTORS
 The first movie projector was the
Zoopraxiscope, invented by British
photographer Eadweard bridge in 1879. The
zoopraxiscope projected images from
rotating glass disks in rapid succession to
give the impression of motion. The stop-
motion images were initially painted onto the
glass.

9. EVOLUTION OF THE SPEAKER
When computers were initially
released, they had on-board speakers
built into the chassis that generated a
series of different tones and beeps.
The first internal computer speaker
was invented by IBM in 1981 and
produced basic, low quality sound.

10. EVOLUTION OF THE HEADSET
• A brief history of the headset. ... The
first headset was created in 1910 by
Nathaniel Baldwin, a student at Stanford
University, who after repeatedly
attempting to find a backer to finance
his new invention, sold around 100
models to the US Army.

11. COMPARISON OF OUTPUT DEVICES WITH
EARLY DAYS
• Early days Lights on display
paper teletype
• Today Head mounted displays

12. THANK YOU