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         Computers made by  
        Texas Instruments 
         
          
         
        in the '80s 
  
        TI 99/4A 
  
        
          
          
          
        
          
          
            
              
              ORIGIN 
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              USA  
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              DATE 
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              Spring 1979 
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              BUILT IN LANGUAGE 
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              T.I. BASIC 
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              KEYBOARD 
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              Full-stroke QWERTY keyboard,  
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              CPU 
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              TI TMS 9900 
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              SPEED 
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              3.3  MHz  
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              RAM 
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              16K VRAM + 256bytes (in CPU) 
expandable up to 52K  
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              ROM 
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              26 KB (18K GROM + 8K ROM) 
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              TEXT MODES 
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              32 x 24 (16 colors) 
40 x 24 (2 colors)  
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              GRAPHIC MODES 
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              48 x 64 (16 colors) 
256 x 192 (16 colors)  
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              COLORS 
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              16 
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              SOUND 
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              3 channels +1 noise 
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              SIZE / WEIGHT 
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              38 x 26 x 6 cm / 2,2 Kgr | 
             
            
              
              I/O PORTS 
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              RGB video out, 
Cassette,  2x Joysticks
Cartridge Slot, Expansion Port 
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              POWER SUPPLY 
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              16V DC, 8V DC 
              External 
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