This document summarizes different types of computer output devices. It discusses CRT monitors, TFT monitors, laser printers, inkjet printers, 3D inkjet printers, dot matrix printers, plotters, speakers, and multimedia projectors. For each device, it provides details on how they work, their uses, and advantages and disadvantages compared to other output devices.
Printer and its types.... Their working and the functionality of each printer.... how they work and what is the process by which the printer prints the data on the paper/sheet
In computing, a printer is a peripheral device which makes a persistent human-readable representation of graphics or text on paper or similar physical media.[1] The first computer printer design was a mechanically driven apparatus by Charles Babbage for his difference engine in the 19th century; his mechanical printer design was not built until 2000.[2] The first electronic printer was the EP-101, invented by Japanese company Epson and released in 1968.[3][4] The first commercial printers generally used mechanisms from electric typewriters and Teletype machines. The demand for higher speed led to the development of new systems specifically for computer use. In the 1980s were daisy wheel systems similar to typewriters, line printers that produced similar output but at much higher speed, and dot matrix systems that could mix text and graphics but produced relatively low-quality output. The plotter was used for those requiring high quality line art like blueprints.
In computers, a printer is a device that accepts text and graphic output from a computer and transfers the information to paper, usually to standard size sheets of paper. Printers are sometimes sold with computers, but more frequently are purchased separately. Printers vary in size, speed, sophistication, and cost. In general, more expensive printers are used for higher-resolution color printing. https://isotechline.com/
A printer is an external output device that takes data from a computer and generates output in the form of graphics/text on a paper.
There are two types of printers.
Impact printers
Non-Impact printers
what is computer mouse? Mouse is an input device. Parts of a mouse, uses and different types of mouse actions. Different types of mouse click are left click, right click, double click and dragging. Parts of mouse include left button, right button and scroll wheel.
Input and Output Devices PPT by Aamir Saleem AnsariTech
An input device sends information to a computer system for processing, and an output device reproduces or displays the results of that processing. Depending on the interaction, a device can be both, referred to as an input/output or I/O device.
For example, as you can see in the top half of the image, a keyboard sends electrical signals, which are received by the computer (input). Those signals are then interpreted by the computer and displayed on the monitor as text (output). In the lower half of the image, the computer sends data to a printer, which will print the data onto a piece of paper (output).
An input device can send data to another device, but it cannot receive data from another device. Examples of an input device include a computer keyboard and mouse, which can send data (input) to the computer, but they cannot receive or reproduce information (output) from the computer.
An output device can receive data from another device, but it cannot send data to another device. Examples of an output device include a computer monitor, projector, and speakers, which can receive data (output) from the computer, but they cannot send information (input) to the computer.
Printer and its types.... Their working and the functionality of each printer.... how they work and what is the process by which the printer prints the data on the paper/sheet
In computing, a printer is a peripheral device which makes a persistent human-readable representation of graphics or text on paper or similar physical media.[1] The first computer printer design was a mechanically driven apparatus by Charles Babbage for his difference engine in the 19th century; his mechanical printer design was not built until 2000.[2] The first electronic printer was the EP-101, invented by Japanese company Epson and released in 1968.[3][4] The first commercial printers generally used mechanisms from electric typewriters and Teletype machines. The demand for higher speed led to the development of new systems specifically for computer use. In the 1980s were daisy wheel systems similar to typewriters, line printers that produced similar output but at much higher speed, and dot matrix systems that could mix text and graphics but produced relatively low-quality output. The plotter was used for those requiring high quality line art like blueprints.
In computers, a printer is a device that accepts text and graphic output from a computer and transfers the information to paper, usually to standard size sheets of paper. Printers are sometimes sold with computers, but more frequently are purchased separately. Printers vary in size, speed, sophistication, and cost. In general, more expensive printers are used for higher-resolution color printing. https://isotechline.com/
A printer is an external output device that takes data from a computer and generates output in the form of graphics/text on a paper.
There are two types of printers.
Impact printers
Non-Impact printers
what is computer mouse? Mouse is an input device. Parts of a mouse, uses and different types of mouse actions. Different types of mouse click are left click, right click, double click and dragging. Parts of mouse include left button, right button and scroll wheel.
Input and Output Devices PPT by Aamir Saleem AnsariTech
An input device sends information to a computer system for processing, and an output device reproduces or displays the results of that processing. Depending on the interaction, a device can be both, referred to as an input/output or I/O device.
For example, as you can see in the top half of the image, a keyboard sends electrical signals, which are received by the computer (input). Those signals are then interpreted by the computer and displayed on the monitor as text (output). In the lower half of the image, the computer sends data to a printer, which will print the data onto a piece of paper (output).
An input device can send data to another device, but it cannot receive data from another device. Examples of an input device include a computer keyboard and mouse, which can send data (input) to the computer, but they cannot receive or reproduce information (output) from the computer.
An output device can receive data from another device, but it cannot send data to another device. Examples of an output device include a computer monitor, projector, and speakers, which can receive data (output) from the computer, but they cannot send information (input) to the computer.
The Output Devices of computer system are electromagnetic devices or gadgets that accepts or acknowledge data or informations from computer system and translate and converts the data in human readable or intelligent form. Generally output can be obtained and acquire mainly in two distinct and different ways Softcopy and Hardcopy.At the point when handled data or information is stored in computer memory is given to an output unit then this processed or prepared data or information is displayed to user in such a way that they can easily read
Output
Software brings the machine to Life
System Software
Application Software
Computer Data
Computer Users
The User’s Role
Userless Computers Output
Text, Graphics, Audio, Video
Output Devices
Allows the user to interact
Output devices deliver data
Monitor, printer, speaker
Some devices are input and output
Touch screens
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2. An Output Device
It is any device that displays an output from
the computer.
CRT Monitors
TFT Monitors
Laser Printers
Inkjet Printers
3D Inkjet Printers
Dot Matrix PrinterPlotters
Speakers
Multimedia Projectors
3. CRT Monitors(Cathode Ray Tube)
- Is the least expensive type of
monitor
- Are becoming less popular
- Uses an electon gun to fire against a
phosphor screen; creating a picture
of tiny dots.
Advantages and
Disadvantages
Back to Output
Devices
Uses
-Used as primary output device
so user can immediately what
they are typing
-Are used with light pens
4. CRT Monitors
Advantages Disadvantages
Produce higher quality than TFT monitors They are heavy and there is a weight
hazard if they are not supported properly.
Angle of viewing is better than TFT
monitors
Run very hot and can cause fire if left
unattended.
They can work with light pens in
computer-aided design and computer-
aided manufacturing.
Consume more power than the modern
TFT monitors
The flicker which can lead to headaches
and eyesight problems.
Back to Output
Devices
Back to CRT
Monitors
5. TFT Monitors (Thin Film Transistor)
The screen is made up of
tiny pixels which are made
up of transistors controlled
by a microprocessor.
Advantages and
Disadvantages
Back to Output
Devices
Uses
- Used as primary output
device so user can
immediately what they are
typing
- Are an integral part of
laptop computers
6. Advantages Disadvantages
Lightweight Angle of viewing is fairly critical; several
people cannot view it at the same time.
Produce less glare than CRT monitors and
emit less radiation
It s definition (quality) may not always be
as good as CRT’s
Consume much less power and do not
generate as much heat as a CRT
Cannot yet be used with light pens
Back to Output
Devices
Back to TFT
Monitors
7. Laser Printers
• Produce high quality hard copy
output.
• Print rate per page is very quick.
• They rely on large buffer
memories; where data is stored
before the pages can be printed
out.
Advantages and
Disadvantages
Back to Output
Devices
Uses
-Used where noise levels need to
be kept low
-Best option for fast high quality
volume printing
8. Laser Printers
Advantages Disadvantages
Printing is fast for high volumes Are expensive to buy
Can handle very large print jobs Are fast if several copies are being made
Quality is consistently high Colour laser printers tend to be expensive
to run as different inks are needed.
Toner cartridges last for a long time;
making laser printers cost effective.
They produce ozone and volatile organic
compounds because of their method of
printing.
Back to Output
Devices
Back to Laser
Printers
9. Inkjet Printers
• They produce good quality
hard copies.
• They do not have large
buffers; so printing is done a
bit at a time.
Uses
- Used where low output
volumes are required
- If high-quality for single
pages is needed these
printers are ideal.
- 3D inkjet printers have now
been introduced in industry.
Advantages and
Disadvantages
Back to Output
Devices
10. Inkjet Printers
Advantages Disadvantages
Output is of high quality Slow output if there are several copies
needed.
Inkjet printers are much cheaper to buy
than laser.
Ink cartridges run out too quickly to be
used for large print jobs
Are very lightweight and take up less
place.
Printing can ‘smudge’
They don’t produce ozone and volatile
compounds
They are expensive to run if they are used
a lot; since original ink cartridges are
expensive.
Back to Output
Devices
Back to Inkjet
Printers
11. 3D inkjet printers
• They produce solid 3D models
using modified inkjet technology
• This technology is known as
‘tomography’; which is when thin
layers of fine powder are bonded
together as 3D model is slowly
built up.
Uses
- Used to make prototypes
- Scale models can be made.
- Produces organic objects.
Advantages and
Disadvantages
Back to Output
Devices
12. 3D inkjet printers
Advantages Disadvantages
Saves a lot of money; making prototypes
by other means is expensive and time
consuming.
Expensive to buy
Physical scale models produced with
working parts; giving better idea of what
the end product will look like.
Slow are producing output
Powders can be ground up and re-used. End product can me a little rough and
needs further work to be done to it.
Back to Output
Devices
Back to 3D Inkjet
Printers
13. Dot Matrix Printer
• It is an impact printer; print
head presses against an inked
ribbon.
• They are slow, noisy and the
output is not good quality
Uses:
- They can be used in noisy
environments
Advantages and
Disadvantages
Back to Output
Devices
14. Dot Matrix Printer
Advantages Disadvantages
Can be used in dusty, dirty or moist
atmospheres
Very noisy, not good in office environment
Carbon copies or multi-part outputs can
be produced
Cost more than an inkjet printer to buy
They are very cheap to run and maintain Slow and printing is of low quality.
Ease to use if continuous stationary
Back to Output
Devices
Back to Dot
Matrix Printers
15. Plotter
• Produce hard copies, but operate
in a different way to printers.
• They are not limited to normal
paper size
• They are able of producing highly
accurate, very large drawings and
posters
Uses
- Produce large drawings
- Print on plastic coated paper
- Large signs can be made is pens are
replaced with cutting ttools.
Advantages and
Disadvantages
Back to Output
Devices
16. Plotters
Advantages Disadvantages
Can produce huge printouts Slow in operation
Print quality is extremely high Expensive to buy and maintain
Back to Output
Devices
Back to Plotters
17. Speakers
• They are connected directly to a
computer
Uses
- Used to output sound from multi-
media presentations
- Used in home entertainment
centres
- Can help blind people
- Play downloaded sound files.
Back to Output
Devices
18. Multimedia Projectors
• They take the image from a
source ( usually a computer,
TV or DVD) and project it
onto a large screen.
• Work with a remote control
Uses
- Advertising
- Training
- Home cinema
Advantages and
Disadvantages
Back to Output
Devices
19. Multimedia Projectors
Advantages Disadvantages
Enables many people to see a
presentation rather than crowding around
a small computer
Images can sometimes be fuzzy
Avoid the need of connecting several
computers together
Are expensive
Setting them up may be slightly difficult
Back to Output
Devices
Back to Multimedia
Projectors