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NEW QUESTION # 33
How does application software differ from operating systems?
Choose 2 answers
Answer: A,D
Explanation:
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.
NEW QUESTION # 34
Which project management life cycle stage involves the development of project deliverables?
Answer: A
Explanation:
Execution is the project management life cycle stage where project deliverables are developed and the planned work is carried out. In Information Technology projects, this is the phase in which teams build, configure, code, test, and implement the products, services, or systems defined in the project plan. Resources are assigned to tasks, progress is tracked, and project managers coordinate people, time, and tools to ensure work aligns with requirements and scope. Planning defines how the work will be done, including schedules, budgets, milestones, and risk responses, but it does not produce the final deliverables. Initiation establishes goals, scope boundaries, and approval to begin. Closure occurs after deliverables are completed and accepted and includes documentation, sign-off, handover, and lessons learned. Because the question asks which stage involves developing deliverables, it refers to the phase where actual production happens. Therefore, the correct answer is execution.
NEW QUESTION # 35
What is true about an operating system?
Answer: C
Explanation:
An operating system (OS) is a crucial component of the computer system. It is not firmware, which would be embedded into the hardware (eliminating option A), nor is it an application program like a word processor (eliminating option B). It is also not a hardware component (eliminating option D). Instead, an operating system is system software that manages computer hardware and software resources and provides common services for computer programs. This includes managing processes, memory, files, security, and input/output operations. The OS acts as an intermediary between applications and the computer hardware, making it possible for other software to run on the computer.
References:
*Operating system definition from OxfordDictionaries1.
*Wikipedia article on Operating Systems2.
*Guru99's explanation of what an Operating System is3.
*How-To Geek's description of an Operating System4.
NEW QUESTION # 36
Which item information should be stored in a database to determine a student's previous academic year's course load?
Answer: C
Explanation:
To determine a student's previous academic year's course load, the most crucial piece of information is the course identification number. This unique identifier allows for the retrieval of specific data related to each course, such as the number of credit hours or units associated with the course, which directly contributes to the calculation of the course load.
Here's a step-by-step explanation of how this information is used:
1.Identify the Student: The database must have a record of the student for whom the course load is being determined.
2.Retrieve Course Records: Using the student's identification, the database retrieves all course records associated with that student for the specified academic year.
3.Use Course Identification Numbers: Each course taken by the student will have a unique course identification number.
4.Determine Credit Hours: The course identification number can be used to look up the credit hours or units for each course, as this information is typically tied to the course ID in the database.
5.Calculate Course Load: By summing the credit hours for all courses taken in the previous academic year, the student's course load can be calculated.
References: The process of determining course load and its impact on student performance is discussed in academic literature, which emphasizes the importance of course identification numbers in tracking academic progress1234.
NEW QUESTION # 37
Which type of conversion involves turning off the old system and turning on the new system at a particular date and time?
Answer: A
Explanation:
In this approach, users stop using the old system, and the new system is put into use immediately1. However, direct conversion can be risky, especially without extensive testing beforehand2.
References
1.W3computing.com
2.Universal CPA Review
NEW QUESTION # 38
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