Computer graphics - colour crt and flat-panel displaysVishnupriya T H
CRT monitors displays colour pictures by using a combination of phosphors that emit different colored light.
There are two types - Beam penetration method and shadow mask method
This Ppt is based on the Raster animation . It explains u ablout a brief idea bout the Raster Graphics its Working with Real time Animation Examples that are used in our day to day life.
The following points are covered in this ppt
1. Introduction
2. Working of Raster Animation
3. Types of Raster Animations Modern and Traditional
4. Examples
5.Applications
6. Advantages
7. Disadvantages
Computer graphics - colour crt and flat-panel displaysVishnupriya T H
CRT monitors displays colour pictures by using a combination of phosphors that emit different colored light.
There are two types - Beam penetration method and shadow mask method
This Ppt is based on the Raster animation . It explains u ablout a brief idea bout the Raster Graphics its Working with Real time Animation Examples that are used in our day to day life.
The following points are covered in this ppt
1. Introduction
2. Working of Raster Animation
3. Types of Raster Animations Modern and Traditional
4. Examples
5.Applications
6. Advantages
7. Disadvantages
Computer Graphics is an advance field in information technology and all about manipulation and rendering of images. This presentation covers all the main concepts in computer graphics including graphics algorithms.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
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.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
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In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
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An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
2. Computer Graphics-Definition:
• It is an art of drawing pictures on computer screens with the help of
programming.
• It involves computations, creation, and manipulation of data.
• It is also a rendering tool for the generation and manipulation of
images.
3. Cathode Ray
Tube
• The primary output device in a
graphical system is the video monitor.
• The main element of a video monitor
is the Cathode Ray Tube CRT.
operation of CRT :
The electron gun emits a beam of
electrons Called cathode
The electron beam passes through
focusing and deflection systems that direct
it towards specified positions on the
phosphor-coated screen.
When the beam hits the screen, the
phosphor emits a small spot of light at
each position contacted by the electron
beam.
It redraws the picture by directing the
electron beam back over the same screen
points quickly –REFRESH CRT.
4.
5. RASTER SCAN DISPLAY
• In a raster scan system, the electron beam is swept across the screen.
one row at a time from top to bottom.
• As the electron beam moves across each row.
The beam intensity is turned on and off
To create a pattern of illuminated spots.
• At the end of each scan line, the electron beam returns to the left side of
the screen to begin displaying the next scan line.
6.
7. REFRESH BUFFER
• Picture definition is stored in memory area called the Refresh Buffer or Frame
Buffer.
• This memory area holds the set of intensity values for all the screen points.
• Each screen point is referred to as a pixel .
• To avoid flickers,we use interlaced scan line.
INTERLACED SCAN LINE
HORIZONTAL RETRACE
VERTICAL RETRACE
8. • HORIZONTAL RETRACE:
Returning to the left of the screen after refreshing each scan line.
• VERTICAL RETRACE:
At the end of each frame,the electron beam returns to the top left corner
of the screen to begin the next frame.
10. • Advantages:
1. avoid flickers
2.realistic images
• Disadvantage:
1.low resolution
• Example:
Home television printer
11. RANDOM SCAN DISPLAY
• The electron beam is directed only to the part of the screen where
the picture is to be drawn .
• It is also called vector display, stroke-writing display, or calligraphic
display.
• Picture definition is stored as a set of line-drawing commands in an
area of memory referred to as the refresh display file.
• Random-scan displays are designed to draw all the component lines
of a picture 30 to 60 times each second.
13. • Advantages:
1.high resolution
2.require little memory
3.produce smooth line drawings
4.require intelligent beam
• Disadvantages:
1.cannot draw a complex images
2. limited color capabilities:very expensive.
• Note:
1. used for line drawing applications
2.cannot be used to display shaded images.
15. RASTER SCAN SYSTEM
• Video controller-Special purpose processor:
Also called as display controller.
Control the operation of the display
It access the frame buffer to refresh the screen
A fixed area of the system memory is reserved for the frame
buffer and the video controller can directly access that frame
buffer.
Screen surface are represented as xypixels ---x increases as
left to right and y increases bottom to top.
16. Raster graphics system with affixed portion of the
system memory reserved for the frame buffer
24. • Display processors can perform various other tasks like:
1. creating different line styles,
2. displaying color areas, etc
• . Typically display processors are utilized to interface input devices,
such as mouse, joysticks.
