week 5 medium

Application Software

• Application software or apps are computer programs designed to perform specific activities or address specific issues for end users.
• It differs from system software, which consists of operating systems, drivers, and utilities that allow computer hardware to function.

Types of Application Software

• Based on cost:
  • Freeware: Software that is available for free and can be downloaded and used by anyone.
  • Shareware: Software that is available for free on a trial basis, with limited features or time-restricted.
  • Open Source: Software for which the original source code is made freely available and may be redistributed and modified.
  • Commercial Software (Proprietary Software): Software that is developed for sale to consumers or businesses.

Types of Applications

• Based on the number of users:
  • Vertical Application Software (User Vertical): Software that is defined and built according to a user’s specific requirements.
  • Horizontal Application Software (General-Purpose): Software that is designed to be used by many different types of users and businesses.

Before Downloading and Installing an Application

• Ensure that your system meets the application's system requirements, including:
  • Compatibility: Check if the application is designed for your operating system.
  • Hardware Needs: Check if the application requires specific hardware features.
  • Storage: Ensure you have enough disk space for the application itself and related files.

Documentation

• Written text or illustration that provides information about an application or other software product.
• Important for explaining how the software works, how to use it, and any other information that may be helpful for users.

Application Licenses

• Single License: Typically designed for individual users and allows the software to be installed on a single machine or device.
• Volume Licensing: A scheme where organizations can purchase licenses in bulk, often at a discounted rate.
• Site License: Allows the software to be used by an unlimited number of users within a specific geographical location.

Web Applications

• Software programs that run on web servers and are accessed via web browsers over the internet.
• Advantages:
  • Accessibility: Can be accessed from any device with a web browser, regardless of the operating system.
  • Cost: Typically less expensive to develop and maintain than traditional desktop software.
  • Updates: Can be updated automatically without any intervention from the user.
• Disadvantages:
  • Internet connection: Require a reliable internet connection to function.
  • Security vulnerabilities: Can be more vulnerable to security attacks than native applications.
  • Limited offline functionality: Most web applications cannot be used offline.

User Interface (UI)

• The space where interactions between humans and the application occur.
• Effective UIs ensure the user can easily interact with the software, leading to an intuitive and user-friendly experience.
• Common application interface elements:
  • Main Window: The primary screen of the application.
  • Dialog Box: A secondary window that captures user input or provides important notifications.
  • Main Menu: Often found at the top of an application window or along the side, providing access to key functionalities.
  • Dropdown Menu: Allows users to select an option from a list.
  • Text Fields: Allow users to input text.