LASER COMPUTER, INC.
LASER TURBO XT-2
| Processor | 8088 | 
| Processor Speed | Unidentified | 
| Chip Set | Unidentified | 
| Video Chip Set | None | 
| Maximum Onboard Memory | 1MB | 
| Maximum Video Memory | None | 
| Cache | None | 
| BIOS | Unidentified | 
| Dimensions | 330mm x 218mm | 
| I/O Options | None | 
| NPU Options | 8087 | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Auxiliary power connector | CN1 | Front panel connector | J12 | 
| Speaker | J11 | Reset switch | JP3 | 
| USER CONFIGURABLE SETTINGS | |||
| Function | Label | Position | |
| Parity check enabled | JP5 | Pins 1 & 2 closed | |
| Parity check disabled | JP5 | Pins 2 & 3 closed | |
| » | Factory configured - do not alter | SW1/1 | Off | 
| NPU not installed | SW1/2 | On | |
| NPU installed | SW1/2 | Off | |
| » | Factory configured - do not alter | SW1/4 | Unidentified | 
| » | Factory configured - do not alter | SW2/4 | Unidentified | 
| DRAM CONFIGURATION | ||||
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | 
| 512KB (A) | None | None | None | (16) 41256 | 
| 512KB (B) | None | (16) 41256 | None | None | 
| 640KB (A) | (4) 4464 | None | None | (16) 41256 | 
| 1MB (B) | None | (16) 41256 | (16) 41256 | None | 
| Note: A = conventional memory. B = expanded memory. | ||||
| DRAM PARITY CONFIGURATION | ||||
| Size | U25/U41 | U35/U40 | U58/U59 | U76/U77 | 
| 512KB (A) | (2) 41256 | None | None | None | 
| 512KB (B) | None | None | (2) 41256 | None | 
| 640KB (A) | (2) 41256 | (2) 4164 | None | None | 
| 1MB (B) | None | None | (2) 41256 | (2) 41256 | 
| Note: A = conventional memory. B = expanded memory. | ||||
| DRAM SWITCH CONFIGURATION | |
| Size | SW1/3 | 
| 512KB | On | 
| 640KB | Off | 
| FLOPPY DRIVE SELECTION | ||
| Drives installed | SW1/7 | SW1/8 | 
| 1 | On | On | 
| 2 | Off | On | 
| 3 | On | Off | 
| 4 | Off | Off | 
| MONITOR SELECTION | ||
| Type | SW1/5 | SW1/6 | 
| EGA | On | On | 
| Color (40 x 25) | Off | On | 
| Color (80 x 25) | On | Off | 
| Monochrome | Off | Off | 
| I/O PORT ADDRESS SELECTION | |||
| Address | SW2/1 | SW2/2 | SW2/3 | 
| 208 | Off | On | On | 
| 218 | On | Off | On | 
| 258 | Off | Off | On | 
| 268 | On | On | Off | 
| 2A8 | Off | On | Off | 
| 2B8 | On | Off | Off | 
| 2E8 | Off | Off | Off | 
| Expansion memory disabled | On | On | On |