CORONA COMPTER CORPORATION
==========================

   PORTABLE PC

   Processor        8088                                          
   Processor Speed  Unidentified                                  
   Chip Set         Unidentified                                  
   Video Chip Set   Unidentified                                  
   Maximum Onboard  512KB                                         
   Memory           
   Maximum Video    Unidentified                                  
   Memory           
   Cache            None                                          
   BIOS             Unidentified                                  
   Dimensions       355mm x 304mm                                 
   I/O Options      Floppy drive interface, serial ports (2),     
                    light pen connector                           
   NPU Options      8087                                          

<gopher://bitreich.org/I/th99/m/C-D/34219-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Serial port       |    J7    | Light pen        |    P2    |
   |                   |          | connector        |          |
   |-------------------+----------+------------------+----------|
   | Serial port       |    J8    | Speaker          |    P3    |
   |-------------------+----------+------------------+----------|
   | Floppy drive      |    J9    |                  |          |
   | interface         |          |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Label |   Position   |
   |-------------------------------------+-------+--------------|
   |>> | Factory configured - do not     |  J1   | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     |  J2   | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |   | BIOS type select 8KB            |  JP1  |    Closed    |
   |---+---------------------------------+-------+--------------|
   |   | BIOS type select 16KB           |  JP1  |     Open     |
   |---+---------------------------------+-------+--------------|
   |   | Keyboard voltage select 12v     |  JP2  |  Pins 1 & 2  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |   | Keyboard voltage select 5v      |  JP2  |  Pins 2 & 3  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     |  P4   | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     |  P5   | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |   | NPU not installed               | S2/1  |      On      |
   |---+---------------------------------+-------+--------------|
   |   | NPU installed                   | S2/1  |     Off      |
   |---+---------------------------------+-------+--------------|
   |   | Floppy drives installed 1       | S2/2  |      On      |
   |---+---------------------------------+-------+--------------|
   |   | Floppy drives installed 2       | S2/2  |     Off      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |  Size   |   Bank 0   |   Bank 1   |   Bank 2   |  Bank 3   |
   |---------+------------+------------+------------+-----------|
   |  128KB  | (16) 4164  |    None    |    None    |   None    |
   |---------+------------+------------+------------+-----------|
   |  256KB  | (16) 4164  | (16) 4164  |    None    |   None    |
   |---------+------------+------------+------------+-----------|
   |  384KB  | (16) 4164  | (16) 4164  | (16) 4164  |   None    |
   |---------+------------+------------+------------+-----------|
   |  512KB  | (16) 4164  | (16) 4164  | (16) 4164  | (16) 4164 |
   |------------------------------------------------------------|
   | Note: The location of banks 0, 1, 2 & 3 are unidentified.  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM SWITCH CONFIGURATION                  |
   |------------------------------------------------------------|
   |        Size        |       S2/5        |       S2/6        |
   |--------------------+-------------------+-------------------|
   |       128KB        |        On         |        On         |
   |--------------------+-------------------+-------------------|
   |       256KB        |        Off        |        On         |
   |--------------------+-------------------+-------------------|
   |       384KB        |        Off        |        Off        |
   |--------------------+-------------------+-------------------|
   |       512KB        |        Off        |        Off        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     MONITOR SELECTION                      |
   |------------------------------------------------------------|
   |      Setting       |       S2/3        |       S2/4        |
   |--------------------+-------------------+-------------------|
   |        None        |        On         |        On         |
   |--------------------+-------------------+-------------------|
   |  Color (40 x 25)   |        Off        |        On         |
   |--------------------+-------------------+-------------------|
   |  Color (80 x 25)   |        On         |        Off        |
   |--------------------+-------------------+-------------------|
   |     Monochrome     |        Off        |        Off        |
   +------------------------------------------------------------+