Internet - Routing of IP packets Routers are devices which make it possible to "choose" the path that datagrams will take to arrive at the destination. They are machines with several network interface cards each one of which is linked to a different network. So, in the simplest...en.kioskea.net/internet/routage.php3
Computer - Random access memory There are generally two broad categories of random access memory: DRAM memories (Dynamic Random Access Module), which are inexpensive. They are used essentially for the computer's main memory SRAM memories (Static Random Access Module), which are...en.kioskea.net/pc/ram.php3
Linking two PCs with a null modem cable The best way to link two computers is to use an RJ45 cable to connect the machines' network cards. However, when one or both of the computers has no network card, there is still a fairly easy way to connect them, by using communication ports (found...en.kioskea.net/elec/nullmodem.php3
WiFi - Data link layer and access methods The data link layer of the 802.11 standard is composed of two sublayers: the Logical Link Control layer (or LLC for short), and the Media Access Control layer (or MAC). The MAC layer defines two different access methods: The CSMA/CA method, which...en.kioskea.net/wifi/wifimac.php3