Compaq Portable II (1985)

1985–1986 · laptop

Specifications

Cpu: Intel 8086, 8 MHz
Ram: max: 640 KB · base: 256 KB
Ports: Parallel · Serial · Expansion slots x3 (ISA)
Battery: none (AC only)
Display: 9" monochrome CRT, 720x350 (CGA-compatible)
Storage: base: Single 5.25" 360 KB floppy drive · options: Single floppy + 10 MB or 20 MB internal hard drive
Weight: 10.9 kg
Os Support: latest: MS-DOS 6.22 (unofficial, community-supported) · shipped: MS-DOS 2.11
Release Price: $3,490

Variants

Revisions

Portable II Model 1Model 11985, single 5.25in floppy, 256KB RAM

Portable II Model 2Model 21985, dual 5.25in floppy drives

Portable II Model 3Model 31985, 10MB hard disk plus floppy, 640KB RAM

Portable II Model 4Model 41985, 20MB hard disk

Upgrade paths

RAM

640 KB via ISA memory expansion cards · Base 256 KB on the motherboard, expanded through the three internal ISA slots with period memory cards.

varies

MODERATE

storage

10 MB or 20 MB internal hard drive in place of the second floppy bay · Redesigned case over the original Portable made room for a half-height hard drive alongside a single floppy, a factory option or later add-on.

varies

MODERATE

CPU

8 MHz 8086 was the only CPU offered · Soldered clock generation and board layout meant no faster CPU swap was practical; the follow-on Portable 286 addressed this instead.

LOCKED