Discussion Topic of the Week: Have you ever owned a computer with two different primary CPUs in it?
It was possible, however, to make up for some of those shortcomings with a wide array of plug-in peripheral modules from Memotech, seen here in this ad from 1983. Furthermore, by piggybacking one module onto the next, it was possible to create an even more capable — and far longer — ZX81.
I wish I had some of these Memotech modules to mess around with. All I have is the bulbous Timex-Sinclair 16K RAM Module. Time to check eBay.
Discussion Topic of the Week: What's the smallest non-portable computer you've ever used? (e.g. Timex-Sinclair 1000)
Discussion Topic of the Week: Of the systems listed in the ad above, which is your favorite?
But I don't think I've ever posted a plain 'ole ad for the Commodore 64 itself. Until now, that is. Here's a colorful one that graced the back of many computer magazine issues back in 1983.
Discussion Topic of the Week: When did you first get a Commodore 64? Tell us the story.
I've never owned a Visual 1050 Personal Computer System (seen here), but I have an old Visual brand terminal that uses the same (or a very similar) keyboard. That's the first thing that comes to mind when I see this, because it's a distinctively wide, flat keyboard.
The 1050 sported a Z80 CPU and ran the CP/M operating system, the grandfather of MS-DOS. Curiously, even though CP/M was a popular platform for business computers in the late 1970s and early 1980s, I only have a a handful of pure CP/M-based machines in my collection. (My favorite such machine is probably the Kaypro II.)
In regard to the chart in the advertisement above, it's interesting to note that it was pretty easy to undercut IBM, price-wise, not long after the IBM PC came out. Fast advances in IC design allowed computer makers to inexpensively cram more functions (think serial, parallel, game ports, disk controller, graphics card, etc.) directly onto motherboards instead of offloading them onto separate plug-in cards. While the 1050 was not an IBM PC clone, true PC clone makers took advantage of this effect to hollow out the inside of IBM's hold on the PC market from the bottom up.
Discussion Topic of the Week: Do you have a favorite machine that runs CP/M?
Discussion Topic of the Week: What's your favorite educational video/computer game of all time?
I'll admit that I've never encountered a Durango Poppy in person, nor do I know much about them aside from ads like this in old magazines.
So I did some digging, and I found that the Poppy model seen here was an 80186-based system that ran either MS-DOS for a single-user setup or Xenix for a multi-user configuration. It retailed for between $4,395 and $11,475 in early 1984 ($9,881 to $25,798 when adjusted for inflation), which was quite a bit of money — but actually far cheaper than IBM's comparable offerings at the time.
A March 5, 1984 issue of InfoWorld available through Google Books has a neat article that mentions the Poppy.
I didn't realize it at first, but the rose in the ad above is meant to symbolize IBM. IBM's PC ads at the time featured Charlie Chaplin's Tramp character, which always carried a rose.
Discussion Topic of the Week: Did you ever purposely pass up IBM hardware for a cheaper alternative? Tell us about it.
See also: The Osborne 1 (RSOTW, 2012)
Discussion Topic of the Week: If you could take any computer with you into the afterlife, which would it be?
Discussion Topic of the Week: Do you own any composite video monitors? Which model/brand is your favorite?
Discussion Topic of the Week: Have you ever run as fast as you can while holding a computer? If not, what's the largest object you've ever held while running full speed?