Computer MCQs

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Explanation: The notification area is a portion of the taskbar that provides a temporary source for notifications and status. It can also be used to display icons for system and program features that have no presence on the desktop.

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Explanation: A more common definition is that the operating system is the one program running at all times on the computer (usually called the kernel), with all else being application programs. An operating system is concerned with the allocation of resources and services, such as memory, processors, devices, and information.

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Explanation: The basic operations performed by a computer are Arithmetic operation, Logical operation, Storage and relative. Computer is an electronic automatic data processing machine. There are five basic operations that the computer can perform. They are input operations, output operations, storage operations, controlling operations, and processing operations.

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Explanation: The true industry standard for 4K is 4096×2160 – 4096 pixels of vertical resolution to 2160 pixels of horizontal resolution. 4K also uses JPEG2000 compression and supports bit rates up to 250Mbps (megabits per second). UHD is the succession of Full HD and doubles the resolution from 1920×1080 to 3840×2160.

Explanation: In a spreadsheet, data is organized into rows and columns , with each individual piece of data stored in a cell, which is the intersection of a specific row and column; essentially forming a table where each column represents a category of information and each row represents a single data point related to those categories. Key points about data organization in a spreadsheet: Cells: Each individual piece of data is stored in a cell, identified by its column letter and row number (e.g., “A1” is the first cell in the first column and first row). Columns: Vertical lines that represent different categories of data, usually labeled with letters (A, B, C, etc.). Rows: Horizontal lines that represent individual data points related to the categories in the columns, usually numbered (1, 2, 3, etc.). Example: Imagine a spreadsheet tracking student information: Column A: Student Name Column B: Grade Level Column C: Math Score Each row would then contain the information for a single student, with their name in column A, grade level in column B, and math score in column C.

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