A (trans)portable PC-XT computer made by Zenith, with double 5''1/4 disk drives and amber monitor built-in (23cm).
The computer is unusual in that the 2 built-in disk drives are mounted in a tilting case, on top of the computer. The keyboard folded up over the CRT (if you look at the picture just rotate the keyboard in place so that the spacebar is at the top of the machine). It forms the cover over the CRT.
the cable went into the pop top.
To the right of the two 5.25" floppys is a dark rectangular area. That is an open space for the keyboard and power cable.
The Z-160 was equiped with a color graphic board which could be used with external monitor.
William Pociengel reports:
You could remove one of the floppys and add a hard drive (with an additional card?), you had to format the HD with debug. You could also change the occilator crystal for overclocking but then you had to retune the video circuitry to get the image back to full screen. Original speed was approx 4.78Mhz? same as a standard PC of the day but by changing the crystal you could get up to (on mine at least) a blazing ~5Mhz (whoopie! ;-). I _think_ there was a IC socket for an 8087 on the motherboard (if memory serves me correctly). I ran DR-dos and Desqview (no mouse at the time but it had a serial port, so later you could add one -when they became available-). This was one heavy machine as I recall running through JFK trying to catch a flight while hauling this puppy.
We need more info about this computer ! If you designed, used, or have more info about this system,
please send us pictures or anything you might find useful.
I would love to have the Zenith, if you could just shoot me an email about shipping and handling that would be cool!
Thursday 14th September 2017
ZeroCool235 (United States)
After 30 years of running my business I am retiring by the end of the year. For the first 8 years or so we were a ZDS dealer and I have seen them all. Z150m Z160, Z386, Z86, the whole offering.
The purpose of this post is that I have a Z160 in pristine running condition with a 20MB hard drive $ 5.25" FDD that I am willing to GIVE AWAY at no cost other than packaging $ shipping fees. I also have a Compaq Portable in the same shape. There are no strings, I just think it would be nice for Zenith people to get the Z160.
This was my first real computer. My employer at the time had one and wanted to get a different model. They sold it to me by letting me pay weekly with a little out of my paychecks for a year. It had 384K RAM that I expanded to 640K. I also took out a floppy drive and added a 20MB hard drive. It did have a socket for an 8087 chip. The monochrome monitor was clear, but the PC released a ton of radio interference from the video adapter. The neighbor upstairs complained that when I''d load a video game on it, he could see the video on his television overpowering his own antenna reception. I gave it to a friend after I got a Northgate 386 PC. When she passed away, I helped clear out her apartment and it wound up getting thrown away. I still regret doing that as I''d love to have it back again. One day I''ll find one somewhere for sale.
Monday 24th April 2017
Robert Carnevali (USA)
Zenith Data Systems
QWERTY full-stroke keyboard, 84 keys, 10 function keys.
4.78 MHz ?
128 KB (upgradable to 640 KB)
80 x 25 / built-in amber screen (23cm)
320 x 200 (CGA)
Yes (Color graphic board included, but built-in monitor is monochrom)
SIZE / WEIGHT
approx. 24'' (W) x 10'' (H) x 28'' (D) / 33 lbs
2 serial ports, parallel port, 4 x IBM extension slots
BUILT IN MEDIA
2 x 5''1/4 disk-drives (360k each)
CP-M, MS-DOS, Z-DOS, PC-Dos.
optional 20 MB hard disk
$2799 (USA, 1984) 128 KB model : 4565 (France, 1984)