translating a letter Essay

659 WordsOct 12, 20143 Pages
Translating a Letter An electrical signal, which runs through the copper wire found inside, covered with aluminum foil to prevent interference. One electric pulse will represent 1 and the absence 0. A 01000001 The coaxial transmits an electrical signal, which runs through the copper wire found inside, covered with aluminum foil to prevent interference. One electric pulse will represent 1 and the absence 0. The light produced by diode or laser, travels through the core due to the reflection occurring on the cover, light on will represent 1 and off 0. These WIRELESS do not require wires to transmit signals, but use radio or infrared to send packets (data set) through the air. OSI Model…show more content…
-Ensures that the arrival of data at the network level is the transmission characteristics and quality of service required by the Level 5 (Session). -This level defines how to address the physical location of network devices. -Assign a unique address to each user transport. -Define a possible multi-channeling. That is, it can support multiple connections. -Defines how to enable and disable the connections between nodes. -Specify the protocol that guarantees message delivery. -Sets data transparency and reliability of information transfer between two systems. -Set the start and end of the session. -Session recovery. -Reference devices by name rather than by address. -Allows you to write programs that run on any network installation. Network Layer: This layer defines routing and forwarding packets between networks. -This level is the responsibility of establishing, maintaining and terminating connections. -This level provides message routing, determining whether a particular message to be sent to -Level 4 (Transport Layer) or Level 2 (data link). -This level switches, routes and congestion control information packets on a subnet. -Defines the status of messages that are sent to nodes in the network. Data Link Layer: This level provides facilities for transmitting blocks of data between two network stations. That is, organizes the 1's and 0's Physical Layer formats or logical groups of
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