Name: 1995年に発売されたAppleのMS-DOS互換486 Macintosh! (Apple’s MS-DOS Compatible 486 Macintosh from 1995!)
Uploaded: 2021-01-14T10:38:11.000Z
Duration: 11 min 41 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

Greetings and welcome to a classic LGR computer thing!

And this time we've got a fascinating hybrid system from 1995:

the Power Macintosh 6100/66 DOS Compatible.

Yep, this is an Apple product built to run both Mac OS and Microsoft DOS, with the ability

to switch between the two at any time and even run programs simultaneously.

Ahh, this is precisely my kinda fun right here.

Sure, you can perform similar tasks running Windows software on a modern Mac using Parallels,

but that uses virtualization software and an existing Intel CPU to do the job.

This 6100, however, doubles up on hardware to achieve a high level of integration between

So in addition to the Power Mac's 66 megahertz PowerPC 601 CPU, there's also a legit Intel

486 inside, working in tandem with the Macintosh half of things

starting at $2,199 when it hit the market in January of 1995.

At least for one with a 2x CD-ROM drive, 500 megabyte hard disk, and 16 megs of RAM.

But memory upgrades were very much recommended, since by default,

system RAM was split between DOS and Mac.

So the total cost could rise to about $5,049 in 1995, if you wanted the officially-supported

Yeah memory was expensive stuff back then, I mean look at these prices from October '95.

Over $1,400 for a single 32 meg memory module,

and you needed two of them to max out this machine.

Then there's the DOS Compatible PDS board itself that can take its own 72-pin SIMM module,

so adding just 16 megs to that would've set you back another $700.

Still, even without any RAM upgrades at all, the 6100/66 DOS Compatible was appealing on

a multitude of levels for the right customer.

You're effectively getting two complete systems in one here, and for folks that used

DOS at work and a Mac at home, or vice versa, then this was a mighty tempting setup.

but it was still less than buying a 486 PC and a Power Macintosh individually.

And if you already happened to own a compatible Mac, Apple also sold the DOS Compatible PDS

There were a whole slew of these cards from Apple in the mid-90s too, but this card here

comes with a 66MHz 486DX2 processor on-board, 256K of L2 cache, and a Chips & Technologies

graphics chipset accessing 512 kilobytes of video memory.

You also get a Creative Labs Sound Blaster Vibra 16 chipset, providing both 16-bit stereo

PCM sound and Adlib-compatible OPL3 music for MIDI playback and FM synth sound effects.

This passes through the CD-ROM audio header on the Macintosh mainboard, meaning that both

DOS and Mac go through the same audio system to play through the 6100's internal speaker.

And around back is a multi-function port with a breakout cable providing both video output

and a 15-pin gameport, so PC joysticks and monitors both plug in here.

Speaking of monitors, there are two ways of displaying DOS.

One is to use a single monitor and combine the two outputs using that breakout cable,

making the DOS system pass through to the Mac.

Doing it this way, a keyboard shortcut is used to switch between DOS and Mac mode, so

only one or the other can be viewed even though they're both running simultaneously regardless.

Or you can use two separate monitors, one for the DOS card and one for the Mac, by plugging

each display into their respective video output ports.

This lets you see both operating systems running at the same time side by side, though you

can still only use or the other seeing as peripherals are shared between systems.

Though, I suppose you could play a game with a joystick on the DOS side and play another

one with a mouse on the Macintosh side, but uh yeah,

not much point to that other than it being awesome.

Oh and in my case, I'm doubled up on dongles here, since the 6100 uses an HDI-45 port for

video and I don't have a monitor that uses that.

But for now let's ignore this array of Apple adapter aggravation, hide it all away behind

here like it doesn't exist, and try out some classic DOS games

Ah that short-lived Mac startup chord, haven't heard that in a while.

Not that it was easy to hear at all with how loud the fans and hard drive are.

The latter of which is louder than it should be

but like my local city council that's mostly due to its age.

Anyway yeah, this particular 6100/66 received some upgrades by its previous owner, with

the aforementioned 72 megs of RAM and also System 7.5.3

an incremental update over the factory-installed 7.5.

And while there are plenty of powerful Mac things to do on this Power Mac, the DOS Compatibility

mode is the star of this particular show.

The way this works is that you simply press Command+Return on the keyboard, and it'll

switch right on over into DOS mode and begin booting the system just like a PC.

Eh okay, I've been beating around the bush this entire video so far, but you may have

noticed that I haven't yet called this “PC compatible.”

Apple specifically calls it “DOS compatible” because it is specifically made to be compatible

with software for MS-DOS, not an entire Intel-based PC.

Due to its reliance on the Apple software used, which manages everything from peripheral

sharing to booting the system, it's only designed to run MS-DOS version 6.0 and higher.

So that means no OS/2, no Linux, no x86 BeOS, no Windows NT.

Although, this does mean that it fully supports Windows 3.1

But yeah, Windows 3.1 running under DOS 6.22 is the ideal environment for this setup,

which is why Apple bundled those with the system.

You get manuals and disks for both of them, some software for the Macintosh and DOS sides

of things to communicate with one another,

as well as driver disks for the DOS card's graphics and sound.

And man is it strange to see Apple-branded Sound Blaster 16 disks, that is just surreal

And hearing proper Adlib music emanating from a Macintosh?

It feels wrong, but in the best kind of way.

And then there's just the whole act of running PC applications and playing DOS games on a

mid-90s Macintosh, while simultaneously running System 7.