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The Computer (Positioning pointing and drawing (The Mouse common and…

- - - - Computation Bound
      - Storage Channel Bound
        
        Bottleneck in transference of data from disk to memory
      - Graphics Bound
        
        Updating display takes a lot of processing power
        
        Sometimes helped by graphics processor
      - Network Capacity
        
        Interactive speed reduced by slow network
- - - - QWERTY
        
        Alphabetic
        
        Dvorak
        
        common letters under dominant fingers
        
        Chord keyboards
        
        Consists of 4 or 5 keys where combinations of keypress for input
        
        Phone pad or T9
        
        Handwriting recognition
        
        Text can be input using a pen and digesting tablet
        
        Speech Recognition
        
        Problems: Background noise, not understanding pronunciation