Miscellaneous Flashcards
too lazy to find what section this fits in
What are the five steps of the Information Processing Cycle?
Input, Process, Storage, Output, Communication.
Provide an example for each step of the Information Processing Cycle.
Input: Keyboard
Processing: CPU
Storage: Hard drive
Output: Monitor
Define software
Programs that perform tasks on a computer (e.g., Word).
Define hardware
Physical parts of a computer (e.g., keyboard, CPU)
Define ICT
Using technology for communication, data management, and automation.
What are LAN and WAN?
Local Area Network - Covers a small area like an office.
Wide Area Network - Covers a large area like the internet.
What is Ethernet and Wi-Fi?
Ethernet: Common LAN cable
- Transmits data over cable
Wi-Fi: Wireless network using radio waves
- Transmits data via wireless signals
What is the function of a proxy server?
Filters and caches web requests, enhances security.
Define subscription licensing.
- regular fees
- always updated
- no large upfront cost
What are hotspots, and what are their limitations?
- Physical location where people can access the Internet, typically using Wi-Fi
- Limited range, shared bandwidth.
List advantages and disadvantages of UTP
UTP (Unshielded Twisted Pair):
Advantages:
- Cheap and widely available.
- Easy to install and flexible.
Disadvantages:
- Susceptible to electromagnetic interference (EMI).
- Shorter range compared to other cables.
List advantages and disadvantages of STP (shielded twisted pair)
STP (Shielded Twisted Pair):
Advantages:
- Shielding reduces EMI better than UTP.
- Supports faster speeds over longer distances.
Disadvantages:
- More expensive than UTP.
- Less flexible, making installation harder.
List advantages and disadvantages of Coaxial cabling
Advantages:
- Resistant to EMI (electromagnetic interference)
- Good for high-frequency signals.
Disadvantages:
- Bulkier and harder to install.
- Slower data transmission speeds than modern cables.
List advantages and disadvantages of Ethernet
Advantages:
- Standard for LAN; supports high-speed data transfer.
- Easy to install and widely supported.
Disadvantages:
- Vulnerable to physical damage without protection.
List advantages and disadvantages of Fibre Optic cabling
Advantages:
- Extremely high-speed data transfer.
- Immune to EMI and provides long-distance connectivity.
Disadvantages:
- Expensive to install and repair.
- Requires specialized tools and knowledge for installation.
What are the main components of a motherboard and their purposes?
CPU Socket: Holds the processor.
RAM Slots: Houses memory modules.
PCI Slots: Connects expansion cards.
SATA Ports: Links storage devices.
Power Connectors: Supplies electricity to components.
What is a switch in networking?
A device that connects multiple devices within a network, directing data to its destination.
What is a NIC (Network Interface Card)?
A hardware component that connects a computer to a network, enabling communication over LAN or WAN.
What is bandwidth?
The maximum data transfer rate of a network, measured in bits per second (bps).
What is a sensor?
A device that detects and responds to physical inputs like temperature, light, or motion.
What is an accelerometer?
A sensor that measures acceleration and tilt, commonly found in smartphones.
