IT work

2. The user interface (UI) is the point of interaction between a user and a digital device or software, encompassing everything from screens, buttons, and icons to sound effects.
5. In computing, a bug refers to an error or flaw in a software program that causes it to produce incorrect or unexpected results.
8. A mobile operating system (OS) is software that allows smartphones, tablets, and other devices to run applications and programs. Examples include Android and iOS.
9. Responsive design ensures that web applications and websites adjust fluidly to different screen sizes and orientations, providing a consistent user experience across devices.
10. This refers to the process of creating software applications that run on mobile devices, typically involving coding and design for operating systems such as iOS and Android.

1. Block-based programming languages are visual coding tools where users create programs by manipulating blocks or chunks of code, instead of typing out text. Examples include Scratch and Blockly.
3. An emulator is a software or hardware that enables one computer system (called the host) to mimic the functions of another system, often used to run applications designed for a different platform.
4. A visual programming environment allows users to create programs by arranging graphical elements instead of writing code in text format. This approach is popular in educational tools for teaching programming.
6. Usability refers to how easy and efficient it is for users to navigate and interact with a system or product, often involving testing to ensure user-friendliness.
7. An event-driven application is a program that responds to events such as user actions (clicks, touches) or messages from other programs. JavaScript in web development is often used in an event-driven model.