Collection of Vintage Compaq Computers

Contura Aero 4/25

i486SX-S (SL enhanced 486SX) running at 25MHz
Display: Passive matrix gray scale VGA (16 shades (640x480) high resolution, 64 shades (320x200) low resolution, color capable when using an external VGA monitor)
RAM: 4MB built-in (expandable to a maximum of 8 or 12MB using an optional 4 or 8MB Compaq branded module, or 20MB using a third party 16MB module)
256KB video memory (512KB exists in the system, but is not accessible by the GPU.)
84, 170 or 250MB 2.5" IDE hard disk drive
1 PCMCIA slot (Type II)
1 ECP/EPP 1.9 capable parallel port
1 RS-232 serial port (16550 UART)
1.5 x 10.25 x 7.5 inches (3.8 x 26 x 19 cm)^[1]
Integrated trackball