Internal and external communication

Daniel Lugo
Mind Map by , created about 4 years ago

Mind Map on Internal and external communication, created by Daniel Lugo on 11/13/2015.

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Daniel Lugo
Created by Daniel Lugo about 4 years ago
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Internal and external communication
1 Port
1.1 Is a connection
1.2 Is used to conect some devices
1.3 Allows exchange data
1.4 Serial Ports
1.4.1 Asynchronous adapter
1.4.2 Intercomunicar several computers together
1.4.3 Receives and sends information
1.4.4 25 pin
1.4.5 Serial interface connector
1.4.6 DTE (Data terminal Equipment)
1.4.7 DCE (Data Comunication Equipment)
1.4.8 1 Pin - P.G. - Safety Ground
1.4.9 2 Pin - TD -> DCE - DTE output
1.4.10 3 Pin - RD -> DTE - DTE input data
1.4.11 4 Pin RTS -> DCE - Request to Send DTE
1.4.12 5 Pin - CTS -> DTE - DCE ready to transmit
1.4.13 6 Pin - DSR-> DTe - CE ready to com . DTE
1.4.14 7 Pin - GND - Common ground circuit
1.4.15 8 Pin - DCD -> DTE - Stopping carrier
1.4.16 20 Pin - DTR -> DCE - Terminal Signal available
1.4.17 23 Pin - DSRD - Speed ​​indicator TX
1.4.18 COM1 and COM2
1.4.19 Chip UART
1.4.20 Communication in one direction
1.4.21 Used addresses and a signal line
1.5 Parallel Port
1.5.1 I/O
1.5.2 Type D-25
1.5.2.1 25 Pin
1.5.3 It is used by printers
1.5.4 LPT (online printer)
1.5.5 DB25
1.5.5.1 Socket
1.5.5.2 36 Pin
1.5.6 8 bits = 1 byte
1.5.7 5 inputs "Steady-State Input points"
1.5.8 DATA
1.5.9 STATUS
1.5.10 CONTROL
1.5.11 17 signal lines and 8 ground lines
1.5.11.1 4. Control lines
1.5.11.2 5. state lines
1.5.11.3 8. Data lines