ICS PART 1
WHAT IS FRAME ??
In filmmaking, video production, animation, and related fields, a film frame or video frame is one of the many still images which compose the complete moving picture.
Qno 1) what are output devices?
Ans: The information processed by the computer is translated into a form that we understand ,and displayed by these machines.Normally ,the output is classified as soft copy output or sound output and hardcopy output.
Soft copy:data that is shown on a display screen or in audio or voice form
hard copy: hard copy refers printed output.
Ans. The peripheral devices which are used to return the output are called output devices. Printer, plotters, projectors, monitors screen and speakers are commonly used out put devices.
In filmmaking, video production, animation, and related fields, a film frame or video frame is one of the many still images which compose the complete moving picture.
Qno 1) what are output devices?
Ans: The information processed by the computer is translated into a form that we understand ,and displayed by these machines.Normally ,the output is classified as soft copy output or sound output and hardcopy output.
Soft copy:data that is shown on a display screen or in audio or voice form
hard copy: hard copy refers printed output.
Display screen:
Also known as CRTs,Monitors or simply screens ,differ in size ,color,resolution,and video,display adaptor card.these are used for in putting the data or displaying the information after processing.
Size:Different sizes -->> small screen built into palmtops and laptops to extra large monitor used for special purposes
color:Many colours-->>RGB displays can create 256 colors and several thousands variations by blending shades of Red ,Green and Blue (RGB).
-->> Monochrome displays information using single foreground color on contrasting background color
Resolution:All the sharpens of the images on a monitor are made up of dot patterns;the number of dots,or pixel,per inch determines resolution,or the sharpens of the images(high number of pixels mean sharper image)
video display Adaptors: To display graphics,a display screen must have a video display adaptor attached with the computer.it is known as a video graphic card ,and is a circuit board that determines the resolution ,number of colors,and speed
or
Qno 2) Write the name of all output devices?video display Adaptors: To display graphics,a display screen must have a video display adaptor attached with the computer.it is known as a video graphic card ,and is a circuit board that determines the resolution ,number of colors,and speed
or
Ans. The peripheral devices which are used to return the output are called output devices. Printer, plotters, projectors, monitors screen and speakers are commonly used out put devices.
Types of output devices
The following list contains many different output devices. For further information, select any of the listings with blue text.
- 3D Printer
- Braille embosser
- Braille reader
- Flat panel
- GPS
- Headphones
- Computer Output Microfilm (COM)
- Monitor
- Plotter
- Printer (Dot matrix printer, Inkjet printer, and Laser printer)
- Projector
- Sound card
- Speakers
- Speech-generating device (SGD)
- TV
- Video card
Types of screen:
Two Types
1) Cathode Ray Tube
2) Flat Panel displays
1) CRT:
A cathode ray tube (CRT) is a specialized vacuum tube in which images are produced when an electron beam strikes a phosphorescent surface. Most desktop computer displays make useof CRTs. The CRT in a computer display is similar to the"picture tube" in a television receiver.
2) Flat Panel displays:
A flat panel display is a television, monitor or other display appliance that uses a thin panel design instead of a traditional cathode ray tube (CRT) design. These screens are much lighter and thinner, and can be much more portable than traditional televisions and monitors.
Three types of technology used in flat panel:
1)LCD( liquid-crystal display)
2) EL(Electro-luminescent Display)
3) Gas-Plasma display
1) LCD
A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals. Liquid crystals do not emit light directly, instead using a backlight or reflector to produce images in color or monochrome.LCDs are available to display arbitrary images (as in a general-purpose computer display) or fixed images with low information content, which can be displayed or hidden, such as preset words, digits, and 7-segment displays, as in a digital clock. They use the same basic technology, except that arbitrary images are made up of a large number of small pixels, while other displays have larger elements.
2) EL(Electro-luminescent Display)
Electroluminescent Displays (ELDs) are a type of Flat panel display created by sandwiching a layer of electroluminescent material such as GaAs between two layers of conductors. When current flows, the layer of material emits radiation in the form of visible light. Electroluminescence (EL) is an optical and electrical phenomenon where a material emits light in response to an electric current passed through it, or to a strong electric field.
3) Gas-Plasma display:
A type of thin display screen, called a flat-panel display, used in some older portable computers. A gas-plasma display works by sandwiching neon gas between two plates. Each plate is coated with a conductive print. The print on one plate contains vertical conductive lines and the other plate has horizontal lines. Together, the two plates form a grid. When electric current is passed through a horizontal and vertical line, the gas at the intersection glows, creating a point of light, or pixel. You can think of a gas-plasma display as a collection of very small neon bulbs. Images on gas-plasma displays generally appear as orange objects on top of a black background.Although gas-plasma displays produce very sharp monochrome images, they require much more power than the more common LCD displays.
