Introduction To Digital Media Technology

Digital signals are binary in nature, meaning they can only have two possible states: on or off, represented by the digits 1 or 0. This is the fundamental concept behind digital technology, where information is encoded and processed using these two states. Therefore, the statement "Digital is either on or off, 1 or 0" is true.

Digitizing involves the process of converting analogue information, such as physical documents, audio recordings, or video footage, into digital format. This conversion enables the information to be stored, processed, and transmitted electronically, making it more accessible and versatile. Converting images to vectors and capturing large files can be part of the digitizing process, but the main purpose is to transform analogue data into digital form.

The RGB color model is indeed used for screen display. RGB stands for red, green, and blue, which are the primary colors of light. In this model, different intensities of these three colors are combined to create a wide range of colors on a screen. This is different from the CMYK color model, which is used for printing, where cyan, magenta, yellow, and black are used. Therefore, the statement "RGB color is for screen display" is true.

The correct answer is "Portable network graphic". PNG stands for Portable Network Graphic, which is a file format used for storing raster graphics. It is a widely used format for images on the internet as it supports lossless compression and allows for transparent backgrounds. The other options, "Playable new graphic" and "Portable new group," do not accurately represent the meaning of PNG.

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Digital storage does not have a poor lifespan. In fact, digital storage mediums such as hard drives, solid-state drives, and cloud storage have significantly longer lifespans compared to traditional physical storage mediums like tapes or CDs. Digital storage is not prone to physical damage or degradation over time, making it a reliable and durable option for storing data. Therefore, the given statement is false.

Resolution relates to pixel density. Resolution refers to the number of pixels in an image or display, while pixel density refers to the concentration of pixels within a given area. Higher resolution means more pixels, resulting in sharper and more detailed images. Pixel density is important in determining the quality of an image or display, as it affects the clarity and sharpness of the visuals. Therefore, the correct answer is Pixel.

JPG files are lossy, meaning that they use a compression algorithm that discards some of the image data in order to reduce file size. This compression can result in a loss of image quality, especially when the file is repeatedly edited and saved. Therefore, the statement "JPG files are lossy" is true.

AVI codecs are designed to compress and decompress audio and video files, allowing for a significant reduction in file size. Despite the compression, these codecs are able to maintain the best possible quality of the audio and video content. Therefore, the statement that AVI codecs greatly reduce file size while maintaining the best quality is true.

Anti-aliasing refers to the technique of smoothing out the jagged edges of an image by blending the pixels along the edges with transitional colors. This helps to create a more visually appealing and realistic appearance, especially when dealing with graphics or text displayed on a digital screen. It reduces the stair-step effect and improves the overall quality of the image by adding subtle shades and gradients to the edges, resulting in a smoother and more natural-looking image.

Vector images are best for both cartoons and illustrations. Unlike raster images, vector images are made up of mathematical equations and geometric shapes, allowing them to be scaled up or down without losing any quality. This makes them ideal for creating detailed and precise graphics, such as cartoons and illustrations, which often require resizing and editing. Additionally, vector images have smaller file sizes compared to raster images, making them easier to store and transfer.

Current video CODECs such as AVCHD (H.264) are capable of compressing video up to 100 to 1 while maintaining almost no loss in quality. This means that the file size of the compressed video is significantly smaller compared to the original video, making it easier to store and transmit. Despite the high compression ratio, the quality of the video remains intact, ensuring a visually pleasing viewing experience. Therefore, the statement "True" is the correct answer.

HD ready (720p) refers to a resolution of 1280 x 720 pixels. This resolution is commonly used for high-definition content and provides a clear and detailed image. It is lower than the full HD resolution of 1920 x 1080 pixels but still offers a significant improvement over the standard definition resolution of 640 x 480 pixels.

Sampling refers to the process of converting analog data, such as continuous signals, into digital data by capturing discrete samples at regular intervals. In the context of the given options, sampling specifically refers to converting analog data into digital data represented by pixels. This is commonly done in digital imaging, where continuous variations in color and intensity are converted into discrete values that can be stored and manipulated digitally.

Digital signals are "cleaner" because they do not have much noise. In digital communication, signals are converted into binary code, consisting of 0s and 1s. Unlike analog signals, which can be affected by interference and noise, digital signals are less susceptible to distortion. The use of error correction techniques and encoding methods helps in minimizing errors and maintaining the integrity of the signal. This results in a cleaner and more reliable transmission of data.

Dots per inch (DPI) refers to the number of dots that can be placed in a linear inch of an image or printed document. It is a measure of the resolution or quality of an image, indicating how many dots or pixels are used to create the image. A higher DPI means a higher resolution and more detail in the image. Therefore, the correct answer is "Dots per inch."

Lossy compression refers to a method of compressing data where some quality is intentionally sacrificed in order to achieve a higher level of compression. This means that during the compression process, certain information is discarded or altered, resulting in a smaller file size. However, the loss of quality is not easily noticeable to the human eye or ear. Lossy compression is commonly used for multimedia files such as images, audio, and video, where a slight degradation in quality can be tolerated in exchange for a significant reduction in file size.

CMYK colors are used in printing and are considered subtractive colors because they work by subtracting wavelengths of light to create the desired color. In the CMYK color model, cyan, magenta, and yellow inks are mixed together to absorb specific wavelengths of light, resulting in the perception of different colors. As more ink is added, the colors become darker and eventually fade to black. This is why CMYK colors are often used for printing purposes, where the goal is to reproduce colors by subtracting light rather than adding it.

The given correct answer is "All of the above" because both .ai and .swf file extensions are commonly associated with vector graphic files. .ai files are Adobe Illustrator files, which are created and edited using vector graphics software. On the other hand, .swf files are Shockwave Flash files, which can also contain vector graphics. Therefore, both .ai and .swf files are examples of vector graphic files.

When zooming in or scaling a Vector graphic, there is no loss of quality because Vector graphics are made up of mathematical equations and geometric shapes rather than pixels. This means that the image can be scaled up or down without affecting its clarity or sharpness. Unlike raster graphics, which are made up of pixels and can become pixelated or blurry when zoomed in, Vector graphics retain their smooth lines and edges even when magnified. Therefore, the statement "There is NO loss of quality when zooming in to or scaling a Vector graphic" is true.

RAW file formats are not very low quality files. In fact, RAW files are the highest quality image files that can be captured by a digital camera. Unlike JPEG files, which are compressed and lossy, RAW files contain all the original data captured by the camera's sensor. This allows for greater flexibility in post-processing, as RAW files preserve more detail, color information, and dynamic range. However, RAW files are larger in size and require specialized software to be processed and converted into a more common file format like JPEG.

AVI files are capable of supporting both lossy and lossless compression. Lossy compression reduces file size by discarding some data, sacrificing some quality in the process. On the other hand, lossless compression retains all the original data without any quality loss, resulting in larger file sizes. AVI files can be created using either compression method depending on the user's preference or the specific requirements of the application.

The given statement suggests that the teacher likes Caramel Frappaccinos. Since there is no contradicting information or any reason to believe otherwise, we can assume that the statement is true.

The human eye does not see in CMYK color. CMYK is a color model used in printing, where colors are created by combining cyan, magenta, yellow, and black inks. The human eye perceives color through a different color model called RGB, which stands for red, green, and blue. RGB is the primary color model used in electronic displays and digital imaging. Therefore, the statement is false.

24 bits is equal to 16.7 million tones of color because each bit represents a binary digit, which can have two possible values (0 or 1). Therefore, with 24 bits, there are a total of 2^24 possible combinations, which equals approximately 16.7 million. This means that with 24 bits, it is possible to represent 16.7 million different colors.

Changing a vector image to a bitmap image will not reduce the file size. Vector images are made up of mathematical equations and can be scaled without losing quality, resulting in smaller file sizes. On the other hand, bitmap images are made up of pixels and resizing them can lead to loss of quality and larger file sizes. Therefore, the statement is false.

There is no graphic file with this name...Trick question

Bit depth refers to the number of bits used to represent each pixel in an image. In the context of color, it determines the number of colors that can be displayed or stored in an image. A higher bit depth allows for a larger number of colors to be represented, resulting in a more accurate and detailed image. Therefore, the correct answer is "Number of colours".

False. Vector graphics are images that are described by mathematical equations and geometric shapes, rather than pixel values. This allows vector graphics to be scaled up or down without losing any quality, unlike raster graphics which are made up of pixels.