Vintage HP Omnibook 600C. Am not able to test due to the lack of power cord. and no battery Physically looks decent. .

The Omnibook 600C and 600CT are 11.1" by 7.28" by 1.6", and weigh 3.8 pounds, including the battery. They have 75MHz 486DX4 processors and come with 8M of RAM. Ours came with NiMH batteries, although they can also be obtained with Lithium-Ion ones. The keyboard is full-size and has a nice touch. The 600C has a 8.5" dual scan monitor. The 600CT has a 9.5" active matrix monitor. In both cases, the resolution of the monitor is 640 by 480 pixels and the screen can be tilted back almost parallel to the keyboard.

You should not, however, deduce that the two models differ primarily in screen quality. The 600C has an extremely nice dual scan display, so nice that the better quality of the 600CT's screen is only apparent when the two are seen side by side. The important differences between the models lie elsewhere. The 600CT has 16-bit sound system, whereas the 600C only beeps. The 600CT comes with a later version of DOS/Windows, but it has on-line manuals, whereas the 600C comes with proper hardcopy manuals. Finally, the 600C can be upgraded to 16M, but the 600CT can be upgraded to 32M.

The current models have 340M hard disk drives. Linux sees the disk drive as a standard IDE disk drive, but it is physically a standard type III PCMCIA card. Therefore, the size of the hard disk has increased, and presumably will continue to increase, as larger PCMCIA hard disks become available. Machines from discount houses may still have the older (and much less acceptable) 260M hard drives. On the other hand, upgrading or replacing these disks should be extremely easy.

Both models come with the following peripherals:

a floppy disk drive,

a PCMCIA port: two type II or one type III,

IR, parallel and serial (16550AF) ports,

SVGA out, and

a pop-out mouse: non-standard but no worse than any other pointing device.

In addition, HP sells an "enhanced port replicator" for these machines, which provides

a PS/2 mouse port,

a keyboard port,

a SCSI-2 port (Adaptec AIC-6x60/aha152x ISA single chip controller), and

a slot for installing one of several HP LAN cards.

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