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NEW QUESTION # 77
What do IT professional organizations publish to offer morals by which individuals and companies abide?
Answer: C
Explanation:
IT professional organizations publish codes of ethics to provide moral guidance for individuals and organizations working in the technology field. In Information Technology, a code of ethics outlines principles and standards of conduct related to responsibilities such as protecting privacy, ensuring security, avoiding harm, maintaining professional competence, being honest about system capabilities, and respecting intellectual property. These ethical standards help professionals make responsible decisions, especially when technical choices can affect users, society, or critical infrastructure. Regulations are legal requirements issued by governments and enforced through law. Policies are internal rules set by organizations to guide behavior within a specific company or institution. Bylaws are governance rules that define how an organization operates, such as membership, elections, and leadership structure, but they do not primarily serve as moral guidance for the broader profession. Professional ethics documents, on the other hand, are meant to guide behavior across the industry and promote trust and accountability. Therefore, the correct answer is ethics.
NEW QUESTION # 78
Which operating system component dictates how the operating system is perceived?
Answer: C
Explanation:
The user interface dictates how the operating system is perceived because it is the part of the system that users directly interact with. In Information Technology, the user interface can be graphical, such as windows, icons, menus, and pointers, or command-line, where users type commands. This interface shapes the user experience by controlling how tasks are performed, how information is displayed, and how users navigate files, settings, and applications. While the kernel performs critical background functions such as memory management, process scheduling, and hardware control, most users do not interact with it directly. The file manager is an important utility for handling files and folders, but it is a subset of the overall user interface experience.
Drivers are also mostly invisible to users and operate behind the scenes to enable hardware devices to work correctly. Because the user interface is the visible layer through which the operating system communicates with the user, it most strongly determines how the operating system is perceived. Therefore, the correct answer is user interface.
NEW QUESTION # 79
What are three operating systems that are commonly used today?
Choose 3 answers
Answer: A,B,C
Explanation:
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, mobiledevices, 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
NEW QUESTION # 80
Which hardware component provides electric pulses that electronic components need in order to operate?
Answer: A
Explanation:
The system clock provides the electric timing pulses that electronic components use to coordinate operations.
In Information Technology hardware architecture, digital circuits require a consistent timing signal to synchronize actions such as executing CPU instructions, transferring data across buses, and coordinating memory access. The clock signal is a repeating electrical waveform that establishes a rhythm for the system, allowing components to perform steps in a controlled sequence. CPU speed is commonly measured in cycles per second, such as gigahertz, which reflects how many clock cycles occur each second. While the motherboard contains circuits and connectors that distribute signals, and expansion buses carry data between components, they do not generate the fundamental timing pulses. A hard drive stores data and does not provide timing for the overall system. Because the question asks specifically about providing electric pulses required for operation, it refers to the system clock function that produces and distributes the timing signal.
Therefore, the correct answer is system clock.
NEW QUESTION # 81
Which peripheral replaces the mouse on a mobile device?
Answer: B
Explanation:
*The peripheral that replaces the mouse on a mobile device is the Stylus.
*Explanation: A stylus is an input device that allows users to interact with touchscreens by tapping, drawing, or writing. It serves as an alternative to using a traditional mouse for precise input on mobile devices.
* Therefore, the correct answer is A. Stylus
NEW QUESTION # 82
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