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Questions and Answers
What is the primary function of the Input Unit?
What is the primary function of the Input Unit?
- Arithmetic computations
- Receiving section (correct)
- Long-term storage
- Shipping section
What does the Output Unit do?
What does the Output Unit do?
- Performs logical operations
- Stores data long-term
- Ships information processed by the computer (correct)
- Receives input data
What best describes the function of the Memory Unit?
What best describes the function of the Memory Unit?
- Long-term storage
- Receiving input data
- Rapid-access, relatively low-capacity storage (correct)
- Processing arithmetic operations
What is the role of the Arithmetic and Logic Unit (ALU)?
What is the role of the Arithmetic and Logic Unit (ALU)?
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What does the Central Processing Unit (CPU) primarily do?
What does the Central Processing Unit (CPU) primarily do?
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What is the purpose of the Secondary Storage Unit?
What is the purpose of the Secondary Storage Unit?
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What section of the computer is responsible for retaining information from the Input Unit?
What section of the computer is responsible for retaining information from the Input Unit?
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Study Notes
Input Unit
- Acts as the receiving section of the computer.
- Responsible for capturing and feeding data into the system.
Output Unit
- Functions as the shipping section of the computer.
- Processes and conveys information to external devices or outputs.
- Plays a crucial role in delivering results after data processing.
Memory Unit
- Known as primary memory; serves as a rapid-access storage area.
- Retains information gathered by the input unit for immediate processing.
- Has relatively low capacity compared to secondary storage, emphasizing quick access to data.
Arithmetic and Logic Unit (ALU)
- Referred to as the "manufacturing" section of the computer.
- Executes arithmetic computations (e.g., addition, subtraction) and logical operations (e.g., comparisons).
Central Processing Unit (CPU)
- Known as the "administrative" section of the computer.
- Functions as the central coordinator, managing and overseeing the activities of other units within the system.
Secondary Storage Unit
- Serves as the long-term, high-capacity "warehousing" section for data and programs.
- Stores inactive programs or less frequently used data for extended periods.
- Involves secondary storage devices, such as disks, which have slower access times compared to primary memory.
- More cost-effective on a per-unit basis than primary memory.
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