** computer architecture |
** Computer architecture |
*** [Graphics card]? *** Sound card |
**** PCI Bus **** ISA Bus **** USB **** AGP |
*** Compact disc |
*** DVD |
*** Compact disc *** DVD *** Tape Drive *** RAM |
*** RAM *** Tape Drive |
*** Braille Embosser |
*** DVD-ROM? *** Digitizing Tablet *** [Touch Screen]? |
*** Mouse |
*** Refreshable Braille Display *** Plotter *** Printer *** Braille Embosser *** Scanner |
*** Mouse |
*** Trackball |
*** DVD-ROM? *** Digitizing Tablet *** [Graphics card]? |
*** Modem *** Plotter *** Printer *** Refreshable Braille Display *** Scanner *** Sound card *** Touch screen *** Trackball |
*** modem |
*** Pointing devices |