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NEW QUESTION # 62
Which hardware component handles the operations performed on data?
Answer: A
Explanation:
The processing unit handles the operations performed on data. In Information Technology fundamentals, the processing unit refers primarily to the central processing unit, which executes instructions and performs arithmetic and logical operations on data. When software runs, its instructions are processed through cycles such as fetch, decode, and execute, and the CPU uses internal components like the arithmetic logic unit to carry out calculations and comparisons. Primary storage, such as RAM, temporarily holds data and instructions for fast access, but it does not perform calculations. Secondary storage, such as hard drives and solid-state drives, provides long-term data retention and is slower than primary storage; it also does not compute results. Peripheral devices include input and output devices such as keyboards, mice, printers, and monitors, which help users interact with the computer rather than performing core processing. Since the question asks which component handles operations on data, it points directly to the processing unit as the part responsible for computation and instruction execution. Therefore, the correct answer is processing unit.
NEW QUESTION # 63
Which motherboard component is used for short-term storage of data?
Answer: D
Explanation:
*RAM (Random Access Memory) is the motherboard component used for short-term storage of data.
*RAM is a type of computer memory that can be read and written. It serves as temporary storage for data that the CPU (Central Processing Unit) needs to access quickly.
*When you run programs or open files, the data is loaded into RAM from storage devices (such as hard drives or SSDs). The CPU can then access this data rapidly, allowing for efficient execution of tasks.
*Unlike permanent storage (such as hard drives), RAM is volatile, meaning its contents are lost when the computer is powered off or restarted.
*RAM is crucial for overall system performance. The more RAM a computer has, the better it can handle multitasking, large applications, and data-intensive tasks.
*In summary, RAM provides fast, temporary storage for data that the CPU actively uses during program execution.
References:
1.AVG: What Is RAM, What Does It Do & How Much Do You Need
2.Crucial.com: What Does Computer Memory (RAM) Do?
NEW QUESTION # 64
Which item is an input device?
Answer: D
Explanation:
An input device is any hardware device that sends data to a computer, allowing you to interact with and control it. Input devices enable users to input information into the computer system. Let's break down the options:
*Flash Drive (A): A flash drive (also known as a USB drive or thumb drive) is a storage device, not an input device. It allows you to store and transfer data but does not directly input data into the computer.
*CD (B): A CD (compact disc) is also a storage medium, typically used for storing audio, video, or software files. Like a flash drive, it is not an input device.
*Scanner : A scanner is a classic example of an input device. It captures physical documents, images, or text and converts them into digital data that the computer can process. Scanners are commonly used for tasks like digitizing photos, creating PDFs, or scanning documents.
*Printer (D): A printer is an output device, not an input device. It produces hard copies (printed documents) based on digital data received from the computer.
In summary, the correct answer is C. Scanner, as it directly inputs data into the computer system.
References:
1.Computer Hope: What is an Input Device?
2.BBC Bitesize: What are input and output devices?
NEW QUESTION # 65
What is one of the goals of the Association for the Advancement of Artificial Intelligence AAAI?
Answer: B
Explanation:
AAAI is a professional scientific society focused on artificial intelligence, and one of its central goals is advancing scientific understanding of the mechanisms and capabilities of intelligent machines. In Information Technology, AAAI is associated with research communities that study machine learning, reasoning, natural language processing, robotics, and problem-solving methods. The goal described in option C matches this mission by emphasizing scientific understanding of machine problem-solving capabilities. Option A aligns more with accreditation organizations, such as ABET, which evaluates academic programs. Option B describes goals associated with standards and computing infrastructure reliability and interoperability, which is more aligned with organizations that focus on standards and systems engineering. Option D aligns more with privacy-focused organizations and governance frameworks. AAAI supports conferences, publications, and collaboration aimed at improving AI theory and practice. Therefore, the correct answer is that AAAI advances a scientific understanding of the problem-solving capabilities of machines.
NEW QUESTION # 66
There are 30 questions on a final exam. The exam will be given in room 126 at 2:00 p.m., and students have one hour to complete it. What is the data-information-knowledge-wisdom DIKW pyramid component exemplified by the statement, "I have completed 25 questions, so I am almost done"?
Answer: D
Explanation:
In the DIKW hierarchy, knowledge focuses on applying information to understand a situation and guide action. The exam facts such as 30 questions, room 126, 2:00 p.m., and one hour are information because they provide organized context. The statement, "I have completed 25 questions, so I am almost done," shows interpretation and application: it uses progress data, compares it to the total number of questions, and draws a practical conclusion about task completion. This is more than raw data, because the numbers are being used to reason about status. It is also not wisdom, because it does not involve an ethical or best-action judgment beyond the immediate conclusion. It represents knowledge because the student is applying understanding of the goal and current progress to evaluate where they stand and to manage time and effort. In Information Technology contexts, this is similar to using metrics to determine completion percentage in a project or workload tracking system. Therefore, the correct DIKW component here is knowledge.
NEW QUESTION # 67
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