1.3.3.4 BIOS vs Direct Interface


  • Direct Access to Controller
    1. Software should know how to interact with hard disk controller
    2. Software should know how about addressing and process of issuing command. 

  • BIOS Access to Controller
    1. Software does not have to know everything about controller.
    2. Entire communication is through BIOS.


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2.3.2 Essential & Non-essential data

  • 1.1.3.3 Types of Sector Addresses
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  • 1.1.2.1 CPU & Machine Codes
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  • 1.1.1.3 Strings and Encoding
    How computer stores sentence ? Computer does not know characters and symbols. Computer has a unique numerical value for a symbol. Computer k...