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KembaraXtra-Computer Suite - Networking as Computing
Core Idea:
Core Idea:
- Networking isn't separate from computing; it's a part of it. The internet is a vast, distributed computing system.
- Hardware & Software: The internet and networks rely on both.
- Hardware: Cables, routers, switches, network interface cards (NICs).
- Software: Protocols, operating systems, device drivers, application libraries.
- Data Representation: Data transmitted over networks is ultimately represented as bits (0s and 1s). These bits are physically encoded (e.g., as voltages).
- Networking Interface as I/O: A network interface card (NIC) (like Wi-Fi or Ethernet) is treated by a computer as an input/output (I/O) device.
- Device Drivers: The OS uses device drivers to communicate with NICs.
- Software Libraries: The OS provides libraries that simplify network communication for applications.
- Abstraction: The OS hides the low-level details of networking, allowing applications to send and receive data more easily.
- Routers and switches are specialized computers.
- They perform specific tasks like routing network traffic.
- Extension of Local Computing: Networking extends computing beyond a single device.
- Data Transfer & Processing: It enables data to be transferred and processed across different machines and locations.
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