Podcast
Questions and Answers
Which of the following is the best example of a device that accepts input, stores the input, processes the stored input, and provides output, but is not conventionally considered a 'computer'?
Which of the following is the best example of a device that accepts input, stores the input, processes the stored input, and provides output, but is not conventionally considered a 'computer'?
- A smartphone with internet access.
- A printer that receives a document from a computer and prints it on paper. (correct)
- A modern digital scanner.
- A high-definition television.
In a typical computer system, which component is directly responsible for interpreting instructions received from software?
In a typical computer system, which component is directly responsible for interpreting instructions received from software?
- The Input/Output Controller
- The Arithmetic Logic Unit
- The Central Processing Unit (CPU) (correct)
- The Memory Management Unit
Which of the following describes the primary role of the Arithmetic Logic Unit (ALU) within a CPU?
Which of the following describes the primary role of the Arithmetic Logic Unit (ALU) within a CPU?
- Managing the flow of data between the CPU and memory.
- Performing mathematical and logical operations. (correct)
- Storing frequently accessed data for quick retrieval.
- Coordinating the activities of all other CPU components.
Which of the following is an example of primary storage?
Which of the following is an example of primary storage?
A computer is running slowly, and you suspect it’s because the operating system is constantly swapping data between RAM and the hard drive. Which of the following would most likely improve performance?
A computer is running slowly, and you suspect it’s because the operating system is constantly swapping data between RAM and the hard drive. Which of the following would most likely improve performance?
What is the fundamental difference between computer hardware and software?
What is the fundamental difference between computer hardware and software?
Which of the following is an example of an application program?
Which of the following is an example of an application program?
A programmer writes code in a high-level language like Python. What must happen before a computer can execute this code?
A programmer writes code in a high-level language like Python. What must happen before a computer can execute this code?
Which of the following scenarios best illustrates the interaction between hardware and software?
Which of the following scenarios best illustrates the interaction between hardware and software?
Which of the following is NOT typically considered an output device?
Which of the following is NOT typically considered an output device?
Flashcards
What is a Computer?
What is a Computer?
A device that accepts input, stores it, processes it, and provides an output.
What is an Input Device?
What is an Input Device?
A device connected to a computer that sends data to the computer.
What is an Output Device?
What is an Output Device?
A device connected to a computer that receives outgoing data from the computer, either displayed or reproduced.
What is the task of a CPU?
What is the task of a CPU?
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What is Primary Storage?
What is Primary Storage?
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What is Computer Software?
What is Computer Software?
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What is Computer Hardware?
What is Computer Hardware?
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What is an Application Program?
What is an Application Program?
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What is Programming Language?
What is Programming Language?
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Study Notes
- Computer definition: A device that accepts input, stores it, processes it, and provides an output
- A non-conventional example of a computer is a printer. It receives information/images (input), processes them, and creates images on pages (output).
Input vs. Output
- Input device: Connected to a computer, sends data into it
- Output device: Connected to a computer, receives data
- The data sent by the input device for processing is reproduced or displayed by the output device.
- Input devices: Mouse, Keyboard, Mic, Touchscreen, Scanner
- Output devices: Printer, Screen, Speakers
CPU Tasks
- The CPU interprets, processes, and executes instructions
- Memory Management Unit: Handles where data is stored
- Control Unit: Manages what is on and off
- Arithmetic Logic Unit: Performs mathematical and logical operations (+, -, <, >, =)
- Primary Storage: Should have RAM and ROM
- RAM: Random Access Memory
- ROM: Read Only Memory, [BIOS]
- Secondary Storage: examples include Hard Drive, USB key, CD Storage, Floppy Disk
Computer Software
- Computer software constitutes the data and instructions that tell the hardware what to do and when, activated by electricity.
- Hardware (physical components like monitors, keyboards, microchips, and hard drives) and software together make a computer
- Software instructs hardware on what to do and how to do it
Application Program
- Application program: A type of computer program that performs a specific function such as PowerPoint
Programming Language
- Serves as a human interface between the computer and the programmer
- Allows the programmer to create an algorithm for the computer to follow, which is then translated into machine code for the computer to understand
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