COBOL (Common Business Oriented Language) is a high-level programming language primarily used for business, finance, and administrative systems within companies and governments. It is particularly useful for handling large-scale, data-centric applications in areas such as accounting, payroll, inventory management, and other business-related tasks. COBOL is known for its readability and ease of use, making it suitable for professionals working on applications that require extensive data processing and business logic. Despite being an older language, COBOL continues to be used in many legacy systems, especially in industries where stability and reliability are paramount.

1. In technical language, the drone is an unmanned aircraft. These drones are formally known as Unmanned Aerial Vehicles (UAVs) or Unmanned Aircraft Systems (UASs). Drones are flying robots that are controlled via remote or fly automatically through software-controlled flight plans, which are embedded systems that work with the help of sensors and GPS.

1. The first and main part of the taskbar is the Start Button. Which is situated in the bottom left corner. It is also called Menu Button. Its structure also depends on the Windows version. It can be round, square, or rectangular.

2. All Programs, Folders and Settings are accessed with the help of the Start Button. From here you can find the program of your choice, run it and create its desktop shortcut.

1. Supercomputer is a powerful computer in terms of data storage capacity, performance and data processing.

2. A supercomputer is a powerful computer that can process large amounts of data and computations very quickly.

3. Supercomputers perform copious amounts of mathematical calculations.

4. Supercomputers are used for a wide variety of applications, including meteorology, medical research, and nuclear weapons research.

1. Optical Mark Reading (OMR) is a method of entering data into a computer system.

2. Optical mark readers read pencil or pen marks made in pre-determined positions on paper forms as answers to questions or tick list signs.