Questions and Answers
What is the function of a modem in the context of computer networking?
To convert digital signals to analog signals for transmission over telephone lines
What distinguishes a Wide Area Network (WAN) from a Local Area Network (LAN)?
WAN requires additional hardware such as modems, while LAN does not
What is the primary function of the Internet in the context of computer networking?
To provide a global system of interconnected computer networks for communication and information exchange
What technology is responsible for changing the way we communicate by providing access to more resources and enabling wireless connectivity?
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What does connectivity refer to in the context of computer networking?
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How does the Internet differ from other networks in terms of scope?
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What is the main function of system software?
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Which type of software is used to reduce the size of a file based on a selected algorithm?
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What is the main function of antivirus software?
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Which type of operating system is used by smartphones and tablets?
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What is the main function of an operating system?
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What type of computer is capable of great processing speeds and data storage?
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Which type of computer serves the maximum number of users and processes large amounts of data?
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What is the main function of a file management tool?
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Which type of software is used to manage the disk space, partitions, and format of a disk?
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What distinguishes personal computers (PCs) from other types of computers?
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What is the primary function of the system board or motherboard in a computer system?
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Which component of the system unit is a separate case for desktop computers?
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What is the most popular device referred to as a handheld computer?
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What important components plug into the motherboard of a computer?
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In what ways do motherboards vary?
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What does the system unit of a computer contain, in addition to electronic components?
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What determines the speed of the microprocessor?
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How is the word size of a microprocessor characterized?
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What is the main function of the control unit (CU) in a microprocessor/CPU?
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Which type of memory is volatile and loses its contents when the computer is powered off?
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What type of storage unit is a byte and how many bits is it comprised of?
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What is the main function of Read Only Memory (ROM)?
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What do slots on the system board provide for a computer?
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What distinguishes secondary storage from main memory?
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What does cache memory serve as between main memory and CPU?
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What technology does not determine the speed of the microprocessor?
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Study Notes
Computer Networking
- A modem's function is to connect a computer to the internet via a telephone or cable line.
- A WAN (Wide Area Network) is distinguished from a LAN (Local Area Network) by its larger geographical area, covering cities or even countries.
- The primary function of the Internet is to provide global communication and information exchange.
Technology and Connectivity
- Wireless connectivity is enabled by Wi-Fi technology, providing access to more resources.
- Connectivity refers to the ability of devices to communicate and share resources.
Software
- The main function of system software is to manage computer hardware and provide a platform for running application software.
- Compression software is used to reduce the size of a file based on a selected algorithm.
- Antivirus software is designed to detect and remove malware.
Operating Systems
- The main function of an operating system is to manage computer hardware and provide a platform for running application software.
- Mobile operating systems are used by smartphones and tablets.
Computer Hardware
- Supercomputers are capable of great processing speeds and data storage.
- Mainframe computers serve the maximum number of users and process large amounts of data.
- A file management tool is used to organize, copy, and delete files.
- Disk management software is used to manage disk space, partitions, and format of a disk.
Personal Computers
- Personal computers (PCs) are distinguished from other types of computers by their single-user, multi-tasking capabilities.
System Unit
- The primary function of the system board or motherboard is to connect and support all hardware components.
- The system unit contains the power supply, storage devices, and other electronic components.
- The case of a desktop computer is a separate component of the system unit.
Microprocessors and Memory
- The clock speed and number of cores determine the speed of a microprocessor.
- The word size of a microprocessor is characterized by the number of bits it can process (e.g., 32-bit or 64-bit).
- The control unit (CU) in a microprocessor/CPU retrieves and executes instructions.
- RAM (Random Access Memory) is a type of volatile memory that loses its contents when the computer is powered off.
- A byte is a unit of storage consisting of 8 bits.
- ROM (Read-Only Memory) is non-volatile memory that retains its contents even when powered off.
- Motherboards vary in terms of socket type, chipset, and features.
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