1.What is the function of a USB port compared to an RJ45 port?
2.What are the functions of the ALU and Control Unit in a computer system?
3.What are the two main purposes of computer networks?
4.What are the differences between LAN, MAN, and WAN?
5.What is the role of a modem in a computer network?
Ruwan Suraweera Changed status to publish 1 day ago
1.
Answer: A USB port connects peripherals like keyboards and drives, while an RJ45 port connects to networks via Ethernet cables.
Description: Ports are interfaces for connecting devices. USB (Universal Serial Bus) is versatile for many peripherals, while RJ45 is specific to networking, often used for LAN connections.
Description: Ports are interfaces for connecting devices. USB (Universal Serial Bus) is versatile for many peripherals, while RJ45 is specific to networking, often used for LAN connections.
2.
Answer: The ALU performs arithmetic and logical operations, while the Control Unit manages data flow and instructions.
Description: In a block diagram, the ALU (Arithmetic Logic Unit) handles calculations like addition, and the Control Unit directs the flow of data and instructions between memory, input/output, and the ALU.
Description: In a block diagram, the ALU (Arithmetic Logic Unit) handles calculations like addition, and the Control Unit directs the flow of data and instructions between memory, input/output, and the ALU.
3.
Answer: Data communication and resource sharing.
Description: Networks allow devices to exchange data (e.g., emails) and share resources like printers or files, improving efficiency and collaboration in homes, schools, or offices.
Description: Networks allow devices to exchange data (e.g., emails) and share resources like printers or files, improving efficiency and collaboration in homes, schools, or offices.
4.
Answer: LAN covers a small area (e.g., an office), MAN spans a city, and WAN covers large regions (e.g., the internet).
Description: LAN (Local Area Network) is fast and localized, MAN (Metropolitan Area Network) connects multiple LANs in a city, and WAN (Wide Area Network) links distant locations, like countries.
Description: LAN (Local Area Network) is fast and localized, MAN (Metropolitan Area Network) connects multiple LANs in a city, and WAN (Wide Area Network) links distant locations, like countries.
5.
Answer: A modem converts digital signals to analog and vice versa to connect a computer to the internet.
Description: The modem (modulator-demodulator) bridges local devices and external networks, like ISPs, enabling communication over phone lines or cables. It’s a key network component.
Description: The modem (modulator-demodulator) bridges local devices and external networks, like ISPs, enabling communication over phone lines or cables. It’s a key network component.
Ruwan Suraweera Changed status to publish 2 days ago
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