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Showing posts with the label Fundamentals

Networks

Networks MAC : medium access control PAN: personal area network WAN: wide area network LAN: local area network MAN: metropolitan area network - across a town Network typologies a physical topology is the physical arrangement of nodes/end points/hosts/clients/devices in a network, a logical topology defines how the devices communicate across the physical topology A network wired in star topology can behave logically as a bus network by using a bus protocol and appropriate physical switching (though you probably should not do this) Switch vs hub Switch: faster, more reliable, and more secure data, uses "access tables" to isolate each connected nodes location Hub: connected nodes are not isolated, so all traffic goes to all nodes, slower, less secure and less reliable STAR vs MESH star: all nodes connected to a central node, usually a switch, these are fast, reliable and cheaper, with good security, however have one critical point a failure, meaning if the switch breaks, the ne...

Psuedocode and flowcharts

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1.    W = 0.1 2.    L = 0.1 3.     4.    While (W <> int) 5.    { 6.        INPUT W 7.    } 8.     9.     While (L <> int) 10.  { 11.       INPUT L 12.   } 13. 14.   A = W*L 15. 16.   OUTPUT A

Fundamentals - input to output

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  Processors and their uses AMD Ryzen - more expensive, faster processors Intel - cheaper budget option, still very fast Qualcomm - manufactures processors for mobile devices ADD MORE     fetch decode execute, how stuff works more in depth