MadSci Network: Computer Science

Subject: How many bytes does a memory address represent?

Date: Thu Jan 31 13:37:57 2002
Posted by Doug
Grade level: undergrad School: No school entered.
City: Indianapolis State/Province: IN Country: USA
Area of science: Computer Science
ID: 1012502277.Cs

In the line for the DOS comm area, the hex address is 00050 to 00070 which 
would be 32 combinations, since the size is 512 bytes this would mean each 
address would represent 16 bytes or 128 bits. Is this correct? It seems like 
alot. Also does this have anything to do with bus width?

Thank you very much,

Conventional memory detail: 
  Segment  Size           Name         Type
  -------  ----           ----         ----

  00000     1,024 ( 1K)                Interrupt Vector
  00040       256 ( 0K)                ROM Communication Area
  00050       512 ( 1K)                DOS Communication Area
  00070     2,048 ( 2K)   IBMBIO       System Data
                            CON          System Device Driver
                            AUX          System Device Driver
                            PRN          System Device Driver
                            CLOCK$       System Device Driver
                            A: - C:      System Device Driver
                            COM1         System Device Driver
                            LPT1         System Device Driver
                            LPT2         System Device Driver
                            LPT3         System Device Driver
                            COM2         System Device Driver
                            COM3         System Device Driver
                            COM4         System Device Driver
  000F0     5,360 ( 5K)   IBMDOS       System Data

Re: How many bytes does a memory address represent?

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