Freeware is software that is distributed at no monetary cost while still remaining protected by copyright laws.
In Information Technology, freeware is typically fully usable without payment, but the creator or publisher retains ownership and controls the license terms. This means users may be allowed to install and use the software for free, yet they are not automatically allowed to modify the source code, resell it, or redistribute it beyond what the license permits. This distinguishes freeware from public domain software, which has no intellectual property protections and can be used, modified, and redistributed freely. It also differs from shareware, which is often free only as a trial or feature-limited version intended to encourage later purchase.
Closed-source describes whether source code is available, not whether the software is free of charge. Many freeware products are also closed-source, but the key idea in the question is free availability with copyright protection. Therefore, the correct category is freeware.

Application software and operating systems serve different purposes within a computer system. The primary distinction lies in their functionality and interaction with the computer's hardware and the user.
*Operating Systems (OS):
oAn OS is system software that acts as an intermediary between the user and the computer hardware.
oIt manages and coordinates the hardware components of a computer system, including the CPU, memory, storage devices, and peripheral devices.
oThe OS provides a platform for application software to run and facilitates user interaction with the system through a user interface.
oExamples include Microsoft Windows, Linux, and macOS.
*Application Software:
oApplication software consists of programs designed to perform specific tasks for the user.
oThese tasks can range from productivity applications like word processors and spreadsheets (Answer A) to communication tools like email clients (Answer B).
oUnlike the OS, application software does not manage hardware resources directly. Instead, it relies on the OS to provide these services.
oExamples include Microsoft Word, Excel, and Mozilla Firefox.
*Key Differences:
oApplication software is run by the end-user to perform specific tasks, while the OS runs in the background, managing the overall operation of the computer system.
oThe OS directly supports and manages the computer hardware system, which is not the case for application software.
References: The information provided here is verified through reliable sources that detail the differences between application software and operating systems12.

1.Microsoft Windows: Developed and marketed by Microsoft, Windows is the most widely used desktop operating system globally. It accounts for nearly 72% market share for desktop and laptop computers.
Windows provides an intuitive and user-friendly graphical desktop, making it easy to use and navigate. It is versatile and supports various tasks such as word processing, browsing, gaming, software development, video editing, and more1.
2.Linux: Linux is a popular open-source operating system. It was developed by programmer Linus Torvalds in 1991. Linux runs in many organizations, private offices, mobile devices, supercomputers, and over the internet. It already contains almost all the features of the UNIX OS and has additional features. Various distributions of Linux exist, including Ubuntu, Debian, Solus, and Linux Mint. Linux is known for its security, compatibility, and flexibility2.
3.Android: Android is one of the most common operating systems today. It powers smartphones, tablets, and other smart devices. Developed by Google, Android is based on the Linux kernel. It dominates the mobile market and offers a wide range of applications and features for users2.
Comprehensive Detailed Step by Step Explanation:
1.Microsoft Windows:
oWindows is developed and maintained by Microsoft.
oIt provides a graphical user interface (GUI) and is user-friendly.
oWindows 10 is the current version, with earlier versions like Windows XP, Windows 8, and Windows 7.
oAdvantages: Compatibility with hardware, pre-loaded software, ease of use. Disadvantages: Cost, security threats, vulnerability to viruses.
2.Linux:
oDeveloped by Linus Torvalds in 1991.
oOpen-source and free of cost.
oUsed in various environments (organizations, supercomputers, etc.).
oDistributions like Ubuntu, Debian, and Linux Mint.
oAdvantages: Security, compatibility, flexibility. Disadvantages: Multiple versions, not ideal for gamers.
3.Android:
oDeveloped by Google.
oBased on the Linux kernel.
oDominates the mobile market.
oOffers a wide range of apps and features.
References:
1.Toppr: Commonly Used Operating System
2.Tecmint: Most Used Operating Systems in the World1

Word processing software is used to create text-based documents such as business reports, letters, memos, and newsletters. In Information Technology and productivity software classifications, word processors provide tools for writing, formatting, editing, and printing documents. Common features include font and paragraph formatting, page layout, headers and footers, tables, spelling and grammar checking, templates, and support for inserting images and charts. These features are essential for producing professional reports and newsletters that require structured text and consistent formatting. Presentation software is designed for slide shows, typically for speaking or visual displays, not for multi-page documents. Spreadsheet software focuses on calculations, formulas, and data analysis in rows and columns, which is ideal for budgets and numeric modeling rather than document publishing. Database software is used to store, manage, and query structured data, supporting records and relationships rather than document creation. Since the goal described is writing and formatting business reports and newsletters, the correct type of software is word processing.

A repeater extends cable range by regenerating or amplifying a signal so it can travel farther without degrading. In Information Technology networking, signals weaken over distance due to attenuation and interference. A repeater receives the incoming signal, cleans or reconstructs it, and then retransmits it at full strength. This allows network segments to exceed the normal maximum cable length limits for a given standard and helps maintain reliable communication. Repeaters are commonly associated with the physical layer of networking because they deal with signal transmission rather than packet routing or traffic decisions.
A switch operates mainly at the data link layer and forwards frames based on MAC addresses within a local network, but it does not primarily exist to boost signal strength. A router connects different networks and forwards packets using IP addressing and routing tables. A firewall is a security device that filters traffic based on rules to protect networks. Since the question focuses on increasing signal strength to extend range, the correct equipment is a repeater.