Monitor is an out put device of the computer.
It is like a TV, that displays text and graphics on the screen.
Video adapters are responsible for delivering the images to the monitor.
Monitor is an out put device of the computer.
It is like a TV, that displays text and graphics on the screen.
Video adapters are responsible for delivering the images to the monitor.
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.
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.
A peripheral device is defined as a computer device, such as a keyboard or printer, that is not part of the essential computer (i.e., the memory and microprocessor). These auxiliary devices are intended to be connected to the computer and used.
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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.
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.
A peripheral device is defined as a computer device, such as a keyboard or printer, that is not part of the essential computer (i.e., the memory and microprocessor). These auxiliary devices are intended to be connected to the computer and used.
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Thank-you !
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/
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
Devices that output hard copy
An external hardware device responsible for taking computer data and generating a hard copy of that data. Printers are one of the most commonly used peripherals and they print text and still images on the paper.
Impact printers use a device to strike an inked ribbon, pressing ink from the ribbon onto the paper.
Non-impact printers use different methods to place ink (or another substance) on the page.
(1) DPI:
It is a measurement of printer’s resolution indicating how many ink dots can be placed by the printer in one square inch. The higher the DPI, the sharper is image. Image quality – Measured in dots per inch (dpi). Most printers produce 300 – 1200 dpi.
(2) Type of printer:
Each type of printer has its own capabilities of printing. Some types of printers produce high quality print while other produce low quality print.
(3) Print Mode:
The printing mode may also affect the quality. For example the draft mode increases the print rate but quality is reduced.
(4) Toner:
The quality and amount of toner also affects print quality.
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Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
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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.
6. MONITOR QUALITY AND RESOLUTION
• Quality:
• Manufacturers describe quality by dot pitch.
• The quality of the image on the screen depends upon many factors.
• Resolution:
• Resolution is one of the factor affecting the quality of the monitor.
• The resolution of a monitor refers to the number of pixels on the screen
expressed as a matrix.
• Most modern monitors can display 1024x768 pixels.
7. Speakers
• Speaker is a output device.
• A output device connected to a computer's sound card that outputs sounds
generated by the computer.
• Speakers can be used for various sounds meant to
alert the user, as well as music and spoken text.
8. Advantages & Disadvantages
• Advantages:
• They ‘re very simple to operate .
• Disadvantages :
• They can take up a fair amount desk-space compared to headphones.
9. Printer
• A printer is a device that produces hardcopy on the paper.
• Printers are commonly used in businesses to get the documents printed on
paper.
• Types of Printer:
• Printers can be categorized into:
• Impact Printer
• Non-Impact Printer
10. Types of Printer:
• Impact Printer:
• An impact printer produces images by striking an inked ribbon
with hammer or a set of pins, pressing ink from
the ribbon onto piece of paper.
• Impact printer are oldest technologies.
11. Advantage & Disadvantages
• Advantages:
• Less expensive
• Can make multiple copies with multipart paper
• Disadvantages:
• The impact printer is very Slow.
• Print quality lower in some types
12. Types of impact printer
• Dot- matrix printer :
• Dot matrix printer produces characters by striking pins against an
ink ribbon To printer closely spaced in the appropriate shape .
• The shape forms a number , alphabet or other special characters.
• Dot matrix printer are relative expensive.
• They do not produce high-quality output.
14. Type of impact printer
• Daisy wheel printer :
• These printer etched at the outer edge of a pedaled wheel which form
characters in the same way as a typewriter.
• Daisy wheel printer are loud and slow.
• They cannot printer graphics , and cannot changes fonts.
16. Type impact printer
• Line printer:
• These printer is somewhat similar to the daisy wheel - printer is the line
printer.
• Line printer have a mechanism that allows multiple character to the
simultaneously printed on the same line.
• The printer speed ranging from 300 LPM ( lines per minute )to 2400 LPM.
17. Type of printer
• Non- impact printer:
• A non impact printer produces images on paper without striking the page on
the way.
• These printer are inexpensive to manufacture and silent .
• Very fast non-impact printer
• Printing more then 24 pages per minute.
18. Type non-impact printer
• LASER Printer :
• Laser stand for light amplification by stimulated emission of radiation.
• Laser printer are similar to copy machine.
• They use laser beams to burn special ink is called toner on page to create a
permanent images.
• The printer is vary fast and high quality provides.
• Laser printer have speeds of 4,8,12 or more page per minute.
20. Non-Impact Printer
• Ink jet printer:
• Ink jet printer is a type of printer that works by spraying ink on sheet a
paper.
• The printer are capable of producing
high quality of printer.
• In general, the price of ink jet printer is
lower then of laser printer.
21. plotter
• Plotter:
• A plotter us a large scale printer that receives commands from a computer to
make drawing on paper with one or more automatic pens.
• Plotters are used in applications such as computer-aided design such as
diagrams, layouts, specification sheets and banners.
• The plotter is capable of producing color drawings in a matter of minutes.
• Plotters are considerably more expensive than printers.
23. Headphones
• Headphone:
• Headphones give sound output from the computer.
• They are similar to speakers, except they are worn on
the ears so only one person can hear the output at a time.
24. Projector
• Projector:
• An output device that can take the display of a computer screen and project
a large version of it onto a flat surface.
• Projectors are often used in meetings and
presentations so that everyone in the room
can view the presentation.
25. Projector
• Types of projector:
• Cathode Ray Tube (CRT) projector.
• Liquid Crystal Display (LCD) projector.
• Digital Light Processing (DLP) projector.
26. Type of Projector
• Cathode Ray Tube (CRT) projector:
• In the early days of projectors, CRT
projectors were commonly used.
• They utilized three tubes, one for
each of the primary colors.
• Due to their large size, low light output
they are no longer commonly used.
CRT projectors are both larger LCD and DLP projectors.
27. Type of Projector
• Liquid Crystal Display (LCD) projector:
• LCD projectors work by utilizing
polarized mirrors that pass and
reflect only certain colors of light.
• An LCD projector can achieve greater
brightness at a lower energy consumption
• Smaller than CRT projectors
28. Type of projector
• Digital Light Processing (DLP) projector:
• DLP projectors can be classified as
one-chip or three-chip.
• One-chip DLP projectors can
produce more than 16 million colors
while three-chip models can produce
more than 35 trillion colors.
• This allows DLP projectors to reproduce more natural and lifelike images.
