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OBJECTIVES: by the end of the lesson, the students should able to:
1. Identify the Output Devices
2. Name at least THREE Output devices of parts of computer
3. Know of each type of output devices
Output devices
enable computers to connect with users and other devices. Any hardware device used to convey data from a computer to another device or user is referred to as an output device. Most output peripherals are designed for human usage, thus, they accept processed data from the computer and convert it to audio, video, or physical copies.
Monitor
Displays the output in the form of images on a digital screen, millions of tiny dots called pixels. In 1897, a German scientist called Karl Ferdinand Braun created the first monitor. It all began with a cathode tube equipped with a fluorescent screen that produced light as electrons flowed across it.
Liquid Crystal Display (LCD)
Most widely used monitor in the world, less space, less electricity, generates less heat, and are thinner and lighter
Light Emitting Diode (LED)
An LED monitor, also known as a light-emitting diode monitor, is a flat-screen computer monitor or television. While a typical LCD monitor has fluorescent backlights, an LED monitor has light-emitting diodes as backlights.
Organic Light Emitting Diode (OLED)
uses organic materials like carbon, plastic, wood, and polymers to transform electric current into light, thinner than LCD. It is regarded as the best display technology because of its excellent contrast levels, picture clarity, quick response and ideal contrast and brightness.
Cathode Ray Tube (CRT)
Older, heavier and take up more space than LED and LCD. Outdated tech, higher energy consumption
Plasma Monitor
Minuscule coloured fluorescent lights that produce image pixels composed of three red, green, and blue fluorescent lights. It is thinner because it is flat rather than slighly curved like and LCD, however, heavier and are produced in small quantities
Headphone
transducers that enable us to listen to songs and recordings on the computer by converting electrical energy into mechanical energy. They take in data that the computer outputs. American engineer Nathaniel Baldwin created the original set of audio headphones.
Over-ear Headphones
thicker headbands and larger ear cups that fully encompass both ears
On-ear Headphones
smaller ear cups than their over-ear counterparts
Open-ear Headphones
don’t cover the ears, don’t have the traditional headband and ear cup foams and feature an around-the-neck or over-ear design.
Clip-on Headphones
thinner, flatter discs that house speaker drivers and hooks that go around your ears.
Projector
Projectors are optical devices that project images on any surface. They are well recognized for their ability to create images by shining a light through a clear, tiny lens. The projector screen is the surface on which a projector generally projects images. They are also known as picture projectors, and some contemporary designs do not even require lenses. Using lasers, they project the image straight onto the surface. Auguste and Louis Lumière, invent the first commercial projector. The Lumière cinematographe operated as a camera, printer, and projector, operating at an economical 16 frame per second. The first commercial demonstration took place on December 28th, 1895
4K Projectors
With USB Hardware Interface 4K resolution Connected to devices via Bluetooth Connected via Wi-Fi Connected via USB Inbuilt DLP Display Technology Portable Weight: Approximately 865 grams Battery-free Mounting Type: Ceiling mount Home Theatre Projectors
LCD Projector
They usually have lower contrast outputs and need to be maintained with filters. The lamp, 3LCP panels, filters and prism are needed to produce the image on screen. They have high color production and are very affordable.
Laser Projector
higher contrast ratio than lamp projectors. Because they operate at a low temperature, they do not need to be installed inside the projector unit. The lifespan of the lamp determines the lifetime of the Laser projector. They are low-maintenance and produce true to life colors.
Printer
A printer is an external hardware output device that creates a hard copy of electronic data stored on a computer or other device. Charles Babbage designed the first computer printer in the nineteenth century as mechanically driven equipment for his Difference Engine. The Difference Engine is a mechanical calculator that was designed to produce error-free tables, which was a difficult task to execute by hand.
Laser Printer
A laser printer is a type of printer that prints with a laser and an electrical charge rather than ink on paper. A laser printer is a popular form of computer printer that use non-impact photocopier technology, in which no keys strike the paper.
LED Printer
LED printers are similar to laser printers but instead of using a lasers to power their drum and toner, they use a strip of LED lights. The main image engine in an LED printer has no moving parts because the LED array remains stationary and merely blinks the page pattern.
Solid Ink Printer
A solid ink printer is a type of color printer that uses wax-based inks that are melted and then sprayed on paper. Solid ink-jet printers produce vibrant colors and can print on almost any surface. A solid ink printer will heat up and melt the ink sticks during printing.
Interactive Voice Response System
telephone framework innovation that permits approaching guests to get to data through a voice reaction arrangement of pre recorded messages without addressing a specialist, as well as to use menu choices by means of touch tone keypad determination or discourse acknowledgment to have their call directed to explicit divisions or subject matter experts.
inbound IVR
Inbound IVRs are extensively used for customer support, answering frequently asked questions, and inbound sales. When a call is received, inbound IVR attempts to anticipate the caller's needs and give them with options for obtaining the information they desire.
Outbound IVR
Outbound IVR allows businesses to engage customers automatically through a variety of communication channels, including voice calls, SMS, and emails. This technology has been warmly accepted by firms that rely extensively on outbound sales efforts since it can augment other call features such as autodialers.
Speakers
workspeakers are output device that works the same way as headphones. Abinawan Puracchidas invented the first computer speakers in 1991. Abinawan obtained his ideas while repairing electronics for local small businesses, and he eventually received a patent for his innovation
Bookshelf Speakers
A bookshelf loudspeaker is a small loudspeaker that is intended to be put on an elevated surface and is typically sold for consumer-grade home audio applications as part of a shelf stereo pair or home theater package.
Tower Speakers
Tower speakers, on the other hand, are tall, vertical speakers that are normally free-standing. They have bigger drivers and can reproduce a considerably wider frequency response with more bass. They are designed in three or four ways, allowing each speaker to accurately replicate warm, balanced sound.
Soundbar Speakers
A sound bar is a compact speaker system that sits beneath your television screen and gives an immersive audio experience. Sound bars, as opposed to standard surround sound systems with several speakers and wires, are a simple and space-saving approach to achieve next-level sound in your living room.
Sources:
https://www.computerhope.com/jargon/l/led-monitor.htm
https://www.hp.com/us-en/shop/tech-takes/differences-between-led-display-and-lcd-monitor
https://www.croma.com/unboxed/what-are-the-types-of-monitor
Are Headphones Input Or Output Devices? – My New Microphone
15 Types of Headphones: All You Need to Know for Picking the Best Pair - Headphonesty
Types of Speakers - A Complete Guide - Descriptive Audio
https://www.moglix.com/articles/types-of-projectors-based-on-their-applications
MARK PICARDAL
(Reporter)
MARK PICARDAL
(Reporter)
CHAD MASCARDO
CHAD MASCARDO
OWEN ROBERT MAGSAYO
OWEN ROBERT MAGSAYO
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