| QuickSpecs | 
| Compaq Presario 660 | 
| August 1994 | 
| Model | COMPAQ PRESARIO 660 Compaq P/N - 164850-002 | 
| Standard Features | |
| Processor | Intel 486SX2/66MHz | 
| Upgradable | Upgradable using Intel OverDrive Processors | 
| Memory | Four MB of RAM standard, upgradable to 56MB | 
| Hard Drive | 340MB | 
| Modem | Integrated Fax (9600 BPS) Modem (2400BPS) with telephone answering machine | 
| Graphics | 1024x768 resolution with 1MB of DRAM | 
| Expansion Bays | Three 8/16 bit ISA expansion slots | 
| Diskette Drive | One 3.5 " 1.44MB Diskette Drive | 
| Interfaces | Parallel, serial, mouse, video, keyboard, game port | 
| Cache | 8 KB internal | 
| Security | MultiLock security features: Power-on password, keyboard password, key lock, cable lock provision, diskette drive control, diskette boot control, network server mode, parallel and serial interface control, administrator password, and asset management | 
| Power Supply | Steady state 145 watts with user selectable 120V/220V | 
| Preinstalled Software | - Microsoft MS-DOS Version 6.0 with SPD - Microsoft Windows Version 3.1with WSPD - TabWorks - Tseng Labs Ver 1.4 - On Line Owner Registration - MS-Works 3.0 - MaxFax - America Online - Quicken SE for Windows - Prodigy - MS Entertainment Pack | 
| Pointing Device | Compaq Mouse included | 
| Warranty | Compaq Care: Provides a wide range of offerings including 3-year, limited warranty; lifetimetoll-free 7 x 24 customer support; and RemotePaq allowing technical support engineers to remotely troubleshoot hardware and software configurations. | 
| Options | |
| 1MB Memory Module | 141682-001 | 
| 2MB Memory Module | 141683-001 | 
| 4MB Memory Module | 141684-001 | 
| 8MB Memory Module | 141685-001 | 
| 84-MB Hard Drive | 141070-001 | 
| 340-MB Hard Drive | 160043-001 | 
| 60-MB Tape Drive | 131251-001 | 
| 80/120-MB Tape Drive | 131247-001 | 
| Graphics | |
| VGA Color Monitor | 143660-001 | 
| SVGA Color Monitor | 143800-501 | 
| SVGA Color Monitor Low Emissions | 143800-503 | 
| 1024 Color Monitor | 141564-501 | 
| 1024 Color Monitor Low Emissions | 141564-503 | 
| 151 FS Color Monitor | 147250-501 | 
| 151 FS Color Monitor Low Emissions | 147250-503 | 
| 171 FS Color Monitor | 190901-001 | 
| QVision 200 Color Monitor | 166050-001 |