Interpreting Binary Symbols THERE ARE MANY WAYS OF INTERPRETING ANY GIVEN STRING OF BINARY DIGITS/SYMBOLS. Digits BASE 2 EBCDIC ASCII BCD 01100001 97 / a 61 01101011 107 $ k ?? EBCDIC = EXTENDED BINARY CODED DECIMAL INTERCHANGE CODE - OLD IBM CODE FOR STORING TEXT AS NUMBERS. ASCII = AMERICAN STANDARD CODE FOR INFORMATION INTERCHANGE - CODE FOR STORING TEXT USED IN MOST CURRENT COMPUTERS. BCD = BINARY CODED DECIMAL - SYSTEM FOR REPRESENTING NUMBERS USING FOUR BINARY DIGITS FOR EACH DECIMAL DIGIT. 0110binary = 6decimal and 0001binary = 1decimal

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This page is part of a section of lecture slides related to " Error Detecting Codes " within the topic "Data Delivery Obstacles". Other slides within this section and other sections of slides for the topic "Data Delivery Obstacles" can be accessed using the links below. Retransmission Techniques Acknowledgements and Retransmission Retransmissions and Timeouts Sequence Numbers Sequence Numbers (cont.) Message Reordering Reliability and Connections A Reliable Delivery Problem Cautious Generals Solving the General's Problem Solving the General's Problem (cont.) Connections Establishing Connections Persistent HTTP Connections Network Congestion Packet Loss and Congestion Congestion and Transmission Rate Congestion and TCP Connections Finding the Bottleneck Rate TCP Transmission Rate Adjustment Error Detecting Codes Damagaged Data Symbols and Meaning Interpreting Binary Symbols Evaluating Codes Error Detecting Codes Parity Codes for Error Detection Multiple Bit Errors Interleaved Transmission Error Correcting Codes Any Guesses? Digital Recording on Compact Discs Two-dimensional Parity Bits Spatial Interleaving