Computer Science

The image displayed on a computer monitor is called a soft copy because it is a digital display that can be changed or erased, unlike a hard copy which is a physical printed output.

A video game played over a network or online requires a Network card (network interface) to connect to other players or online services. While graphics cards are essential for rendering visuals in video games, they are not specifically used to 'play' the game in the context of network connectivity. Sound cards are for audio output, and modems are older devices for dial-up internet connections, not commonly used for gaming today. Therefore, the correct answer is 'Network' card, as it enables online multiplayer gaming and internet connectivity.

Rendering is the process of generating a 2D image from a 3D model by calculating lighting, shading, and textures. Animation refers to creating motion, scaling changes size, and vectorization converts raster images to vector format, so rendering is the correct term.

Full HD, also known as 1080p, commonly has a resolution of 1920x1080 pixels. This is the standard resolution for Full HD displays, whereas the other options correspond to different standards: 3840x2160 is 4K UHD, 7680x4320 is 8K UHD, and 1280x720 is HD (720p).

Resolution refers to the sharpness or clarity of an image, indicating how many pixels or dots are used to display the image. Higher resolution means more detail and clearer images.

Minimizing a program hides its window from the desktop but keeps it accessible on the taskbar, allowing the user to restore it later. Closing a program exits it, and maximizing enlarges the window; neither hides it on the taskbar.

A higher Pixels Per Inch (PPI) means more pixels are packed into each inch of the image, resulting in finer detail and higher image quality. Therefore, higher PPI typically indicates better image clarity and sharpness.

MPG is a video file format extension, not a graphic image format. JPEG and GIF are both graphic image file format extensions. Therefore, the correct answer to the question 'Which of the following is a graphic file format extension?' is not 'All of these' but rather the options that are graphic formats. Since JPEG and GIF are graphic formats and MPG is not, the correct answer is either B or C. Given the options, C (GIF) is a valid graphic file format extension. Option D (All of these) is incorrect because MPG is not a graphic format.

A desktop computer typically includes all these components: the CPU (central processing unit), the motherboard, and the hard disk. Therefore, the correct answer is 'All of these'.

Flat-panel displays, primarily LCD and LED-backlit LCD, are the standard visual output devices used across virtually all computer categories. They are commonly used as external monitors for personal computers (desktops), integrated into laptops as built-in screens, and also used in terminals or thin-client workstations for mainframe computers. Supercomputers also use flat-panel displays for console and visualization stations. Given the options, 'Personal computer' is the most appropriate answer as flat panels are standard for desktop PCs. While laptops also use flat panels, the question context likely refers to desktop PCs. Supercomputers and mainframes use flat panels but often in specialized setups rather than as the primary display type for the entire system.