CORONA COMPTER CORPORATION
DESKTOP PC
| Processor | 8088 | 
| Processor Speed | Unidentified | 
| Chip Set | Unidentified | 
| Video Chip Set | Unidentified | 
| Maximum Onboard Memory | 512KB | 
| Maximum Video Memory | Unidentified | 
| Cache | None | 
| BIOS | Unidentified | 
| Dimensions | 355mm x 304mm | 
| I/O Options | Floppy drive interface, parallel port, serial ports (3), light pen connector, VGA port | 
| NPU Options | 8087 | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Speaker | P2 | VGA port | J7 | 
| Light pen connector | P3 | Serial port | J8 | 
| Floppy drive interface | P4 | Parallel port | J9 | 
| Serial port | J5 | Reset switch | S2 | 
| Serial port | J6 | ||
| USER CONFIGURABLE SETTINGS | |||
| Function | Label | Position | |
| BIOS type select 8KB | JP1 | Closed | |
| BIOS type select 16KB | JP1 | Open | |
| Graphics memory located in second 256KB | JP2 | Pins 1 & 3 closed | |
| Graphics memory located in first 256KB | JP2 | Pins 2 & 4 closed | |
| Keyboard voltage select 12v | JP3 | Pins 1 & 2 closed | |
| Keyboard voltage select 5v | JP3 | Pins 2 & 3 closed | |
| NPU not installed | S1/1 | On | |
| NPU installed | S1/1 | Off | |
| Floppy drives installed 1 | S1/2 | On | |
| Floppy drives installed 2 | S1/2 | 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 | S1/5 | S1/6 | 
| 128KB | On | On | 
| 256KB | Off | On | 
| 384KB | Off | Off | 
| 512KB | Off | Off | 
| MONITOR SELECTION | ||
| Setting | S1/3 | S1/4 | 
| None | On | On | 
| Color (40 x 25) | Off | On | 
| Color (80 x 25) | On | Off | 
| Monochrome | Off | Off |