أساسيات الوسائط المتعددة والإنترنت

Multimedia and Internet Fundamentals

• This document discusses the fundamentals of multimedia and the internet.
• Multimedia is an essential part of daily life, impacting individuals across various aspects.
• A combination of different media elements like text, images, video, and audio creates engaging and impactful delivery of information and ideas.
• Technological advancements in communication have led to a significant revolution in communication, creating new rules and regulations.

Communication Process

• Key elements in the communication process are the sender, receiver, message, and channel.
• Feedback is crucial for effective communication.

Multimedia Definition

• Multimedia is a combination of multiple media elements.
• It comprises diverse communication mediums combined to convey ideas and information effectively.
• It's often integrated through technological means to deliver a message.
• The evolution of multimedia is linked to the transition from analog to digital technology, where data is converted into a digital format.

Definition of Multimedia (Various Perspectives)

• Different authors define multimedia differently.
• Some emphasize the integration of various media forms for effective communication.
• Some focus on the role of computer software and user interaction in multimedia presentations.
• Several perspectives highlight the blend of text, images, audio, and video, emphasizing the engaging impact on the receiver.
• The authors emphasize how computer technology facilitates multimedia's development and use.

Multimedia Elements

• Multimedia elements include static and dynamic content.
• Dynamic elements include video, animation, and audio.
• Static elements include text and graphics.
• Key applications of multimedia include entertainment, education, communication, internet, journalism, and interactive communication.

Types of Media

• Discrete media (like text and images) are independent of time.
• Continued media (like audio and video) rely on time.
• Any system with multiple media types is considered multimedia.

Images

• Images can be captured through optical devices such as cameras or created digitally through various programs.
• Digital images are created by cameras or scanners.
• Graphics (CGI) are images or videos created with computer-based tools.
• Image types include still pictures, motion pictures, 2D (two-dimensional) and 3D (three-dimensional) images.

Image Formats

• JPEG (Joint Photographic Experts Group) is a widely used format for images, offering good compression and a wide array of colors, but sometimes at the cost of image quality.
• GIF (Graphics Interchange Format) supports up to 256 colors and is often used for images with transparent backgrounds.
• PNG (Portable Network Graphics) is an image format with better color support compared to GIF, and has support for transparency.

Animation Types

• Traditional animation involves drawing individual frames to create motion, a time-consuming process.
• Rotoscoping uses live-action video as a template, creating animation from existing video.
• Stop-motion animation involves animating objects frame by frame.
• Cut-out animation involves animating objects made from various materials.
• Computer animation includes 2D and 3D versions, leveraging software to achieve complex movements and scenes.

Text and Typography

• Font is a collection of characters and symbols in a particular style and size.
• Various font types exist, such as Serif, Slab Serif, and Sans Serif fonts.
• Font size (measured in points), and type weight affect the visual impact, clarity, and overall expression.
• Readability is improved through appropriate "aliasing and anti-aliasing" techniques, which deal with the visual appearance of text on screen.

Color Models

• The Hue is the name of a color, such as red or blue.
• Saturation is how pure and vivid a color is; measured by its distance from a gray scale.
• Value is how light or dark a color is, ranging from white to black.
• Common color models include RGB and CYMK.

Internet and Web

• The internet is a global network connecting computer networks, enabling the exchange of information and services worldwide.
• Key functionalities include email, social media, information retrieval, learning resources, and communication.
• Key protocols include HTTP and HTTPS.
• The web is a subset of services on the internet, characterized by interconnected, visually navigable pages.

Web Components

• Web pages contain hyperlinks, enabling navigation between pages (Hyperlinks).
• Browsers are software for navigating the web, examples include, Internet Explorer, Firefox, Google Chrome, and Safari.
• Web addresses (URLs) follow a specific format.
• Search engines like Google and Bing are computer programs that index and retrieve information, using keywords or specific search phrases to find relevant information.

User Interface/User Experience (UI/UX) Design

• The UI and UX are the means through which users interact with a digital product's content or services.
• This includes designing the visual appearance and structuring site flow in a way that is easy for users to navigate and understand.
• Tools used for UI/UX include Figma, Sketch, Adobe XD.