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Questions and Answers
What is the main function of the Central Processing Unit (CPU) in a computer system?
What is the main function of the Central Processing Unit (CPU) in a computer system?
- Transferring data to output devices
- Permanently storing data
- Displaying results on the monitor
- Storing, retrieving, and processing data (correct)
Which of the following is considered a peripheral in a computer system?
Which of the following is considered a peripheral in a computer system?
- Memory Chips
- Integrated Circuits
- Barcode Reader (correct)
- Central Processing Unit
What distinguishes secondary storage from memory in a computer system?
What distinguishes secondary storage from memory in a computer system?
- Speed of access
- Function within the CPU
- Size of storage (correct)
- Type of electronic components used
Which of the following is an example of an input device?
Which of the following is an example of an input device?
In a computer system, where does data go when it is transferred to an output device like a printer?
In a computer system, where does data go when it is transferred to an output device like a printer?
What makes up the physical parts of a computer system referred to as 'hardware'?
What makes up the physical parts of a computer system referred to as 'hardware'?
Which of the following is NOT an example of a peripheral in a computer system?
Which of the following is NOT an example of a peripheral in a computer system?
What is the purpose of integrated circuits or chips in computer memory?
What is the purpose of integrated circuits or chips in computer memory?
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Study Notes
- RAM (Random Access Memory) is a type of memory chip used in computers for short-term data storage while the PC is switched on, allowing for quick access to data.
- There are different types of computer memory, such as primary memory (RAM and ROM) used for processing data and secondary memory (offline memory like hard disks) used for storage.
- Hard disks are large storage devices inside computers that hold a significant amount of information, with fast access speeds compared to floppy disks.
- The main memory in a computer consists of memory cells with unique addresses where data is stored in binary digits (bits), and the capacity is measured in kilobytes (KB) or megabytes (MB).
- Computers are composed of four major components: Input units (like mouse and keyboard), Central Processing Unit (CPU) which controls operations, Secondary Storage for permanent data storage, and Output Units for transferring data to devices like printers and monitors.
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