Rolling back to OS 7.0 from 7.5, and Ram Doublers

[bob5820]

I recently picked up a classic II with OS7.5 installed. From what I've read compacts such as the Classic II perform better with 7.0 then they do with 7.5. I'm thinking of rolling the Mac back to 7.0, is there any reason not to do so?

The system also has Conectix Ram Doubler 2 installed. About this Mac shows 4096k of built in Ram and 12288k total. IIRC the Classic II actually has 2m of Ram built in, so I assume that the Ram Doubler is somehow tricking the system into believing it has 4 m of built in Ram. Does this mean my Classic II also has an additional 4m of ram installed? 2 megs built in + 4 megs add on *2 (RAm Doubler) = 12 megs, right? I vaguely remember having a Ram doubler in Windows 3.1, is this the same type of program?

 

[weckart]

RamDoubler on Windows = Fraud and ultimately a joke application. Waste of money. Never did try it on a Mac, so have no idea, whether it legitimately could compress active programs on the fly to occupy less memory space, but I doubt it. Probably the time overhead in compressing/uncompressing active threads offers no benefit over paging to the HD.

 

[dpaanlka]

RamDoubler on Windows = Fraud and ultimately a joke application. Waste of money. Never did try it on a Mac, so have no idea, whether it legitimately could compress active programs on the fly to occupy less memory space, but I doubt it. Probably the time overhead in compressing/uncompressing active threads offers no benefit over paging to the HD.

RamDoubler on a Mac does work. Thats where it originated from.

Its slow though.

OP: You'll probably want to focus on finding 7.1 rather than 7.0.

 

[shu82]

System 7 is a free download from Apple. Also, all ram doublers are is a virtual memory program.

 

[dpaanlka]

System 7 is a free download from Apple.

System 7.0.x and 7.5.x are. Neither 7.1.x nor 7.6.x are free, which is a shame since those are the better ones.

 

[gnasher729]

I recently picked up a classic II with OS7.5 installed. From what I've read compacts such as the Classic II perform better with 7.0 then they do with 7.5. I'm thinking of rolling the Mac back to 7.0, is there any reason not to do so?

The system also has Conectix Ram Doubler 2 installed. About this Mac shows 4096k of built in Ram and 12288k total. IIRC the Classic II actually has 2m of Ram built in, so I assume that the Ram Doubler is somehow tricking the system into believing it has 4 m of built in Ram. Does this mean my Classic II also has an additional 4m of ram installed? 2 megs built in + 4 megs add on *2 (RAm Doubler) = 12 megs, right? I vaguely remember having a Ram doubler in Windows 3.1, is this the same type of program?

There was a huge jump in quality between 7.5.3 and 7.5.5. If you have 7.5.5 installed, leave it installed. Basically, virtual memory actually worked as intended for the first time in 7.5.5.