Describe flat-panel, curved, LCD, LED, and OLED monitors

Flat-panel monitors are the most widely used type of monitor today. Compared to other types, they are thinner, are more portable, and require less power to operate. ‘Almost all flat-panel displays are backlit, meaning that a common source of light is dispersed over all the pixels on the screen. There are three basic types of flat-panel monitors: LCD, LED, and OLED.

One of the most recent developments 1S the curved monitor. It uses similar technology as flat-panel monitors except it has a concave screen that provides better ‘viewing angles near the edges of the screen. Curved monitors are widely use for high- ‘end televisions and for game searching for a highly immersive viewing experience Curved monitors are just beginning to appear in smartphones and wearable computers,

LCD (liquid crystal display is widely used for older monitors and is typically less expensive.

LED (light-#mitting diode) monitors use similar technology with a more advanced back lighting technology: They produce better-quality images, are slimmer, and are more environmentally friendly as they require less power and use fewer toxic chemicals to: manufacture. Most new monitors are LED.

OLED (organic light-emitting diode) monitors replace the LED monitor's ‘backlighting technology with a thin layer of organic compound that produces light. By eliminating the back light, OLED monitors can be even thinner with better power efficiency and contrast ratios.

What are e-book readers, digital whiteboards, UHDTVs, and digital projectors?

“E-book readers (e-readers) are dedicated mobile devices for storing and displaying e-books and other electronic media including electronic newspapers and. magazines,

Digital or interactive whiteboards are specialized devices with a large display connected to a computer or projector. The computer's desktop is displayed on the digital whiteboard and controlled using a special pen, a finger, of some other device

Digital whiteboards are widely used in classrooms and corporate boated rooms.

Ultra-high-definition television (UHDTV) delivers much clearer and more detailed wide-screen picture than regular HDTV. Because the Output is digital, users can readily freeze video sequences to create high-quality still images. The ‘video and still images can then be edited and stored for later use. This technology is very useful to graphic artists, designers, and publishers. One of the most recent and dramatic advances is 3D UHDTV. ™:

Digital projectors project the images from a traditional monitor onto a screen or wall, This is ideal for presentations or meetings when several people need to see the screen at the same time.

Discuss these printer features: resolution, color capability, speed, memory, and duplex printing.

 Resolution for a printer is similar monitor resolution. It is a measure of the clarity of images produced. Printer resolution, however, is measured in dpi (dots per inch).         

Color capability is provided by most printers today. Users typically have the option to print either with just black ink or with color. Because its more expensive to print in color, most users Select. black ink for letters, drafts, and homework

Speed is measured in the number of pages printed per minute. Typically, printers for personal se average 15 to 19 pages per minute for single-color (black) output and 13 to 15 page® per minute for color output.

Memory. within a printer is used to tore printing instructions and documents waiting to be printed The more memory, the faster it will be able to print large documents

 Duplex printing allows automatic printing on both sides of a sheet of paper.

Although not currently a standard feature for all printers, it will likely become standard in the future as a way to reduce paper waste and to protect the environment,

Compare inkjet, laser, and 3D printers

Inkjet printers spray ink at high speed onto the surface of paper. This process) produces high-quality images in a variety of colors, making it ideal for printing photos.

‘The laser printer uses a technology similar to that used in a photocopying” machine. Laser printers use a laser light beam to produce images with excellent better and graphics quality. More expensive than inkjet printers, laser printers are faster and are used in applications requiring high-quality output.

3D printers, also known as additive manufacturing, create three-dimensional shapes by adding very thin layer after layer of material until the final Shape is fully formed. There are a variety of different processes and materials that can be used to create each layer. One of the most common sprays a liquid plastic or plastic like substance through a nozzle similar to a inkjet printer

Discuss cloud, thermal, and plotter printers.

Cloud printers are printers connected to the Internet that provide printing services to others on the Internet. Google Cloud Print is a Service that supports cloud printing, Once a user activates a printer using the Google Chrome OS, the user can access that printer anywhere with a smartphone or any other type of computer that is connected to the Internet.

Thermal printers use heat elements to produce images on heat-sensitive paper These printers are widely used with ATMS and gasoline pumps to print receipts,

 

Plotters are special-pury6% printers for producing a wide range of specialized output. Using output from graphics tablets and other graphical input devices, plotters create maps, images, and architectural and engineering drawings, Plotters are typically ‘used by graphic artists) engineers, and architects to print out designs, sketches, and drawings

What are the two most widely used audio-output devices? What is Bluetooth?

‘The most widely used audio-output devices are speakers and headphones. These devices connect to a sound card within the system unit

Wireless connections typically use Bluetooth technology. This type of connection requires special Bluetooth-enabled speakers and or headphones.