Retro PC thread...go!

Retro PC thread...go!

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visual6502.org/images/6502/index.html
ebay.com/itm/Vintage-Commodore-PET-4032-12-Computer/163256826838?hash=item2602dd7bd6:g:qIIAAOSwDehbg3i3
ebay.com/itm/Vintage-Tandy-TRS-80-Model-1-one/163264020027?hash=item26034b3e3b:g:vR0AAOSw38VboDwf
twitter.com/SFWRedditGifs

What aspect ratio monitor is that?

Was the C128 a mistake?

>lots of cool features in BASIC 7, but it ran slower than BASIC 2
>most BASIC 7 features could be obtained from C64 BASIC extenders like Simons BASIC
>fast disk interface, but you could achieve as good results with a 1541 fast loader
>2Mhz mode can only be used with the VDC
>BASIC has no VDC support
>extra memory was nice, but you could do that on a C64 with an REU
>slow, utterly useless CP/M mode

Did anyone actually ever use theirs in CP/M mode?

Doubtful. If you've tried it, it is slow, man. I did the ol' Sieve of Erasothenes test in MBASIC on CP/M mode and it took goddamn 7 minutes. It was about 2:35 on native mode in 2Mhz.

Its BASIC is definitely slower unless using 2Mhz mode. Probably because it has to constantly switch between the two RAM banks (one contains the BASIC program text and the other variables).

To elaborate a bit, I was playing around with the CP/M mode in x128 on VICE and yes it's slow, very slow. MBASIC gives you some cool features not in the native mode Commodore BASIC, but you also lose a lot of stuff and you also get only 34k of program memory instead of the 90k available in native mode.

IBM PC-110

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Probably not. CP/M was pretty goddamn obsolete by the mid-80s and there was no real reason to not just use native mode C128 applications like Paperclip. The main reason really for adding the Z80 to the system board was that it solved a compatibility problem with some C64 cartridges and it added all of $1 to their manufacturing costs.

Wasn't there a C64 CP/M cartridge?

That's a pretty comfy looking UI. It shows quite well that "screen real estate" is a matter of design and not of resolution or size.

Yes and it only worked on early silver label machines because apparently the fixes to some hardware bugs in the initial VIC-IIs broke CP/M compatibility. The cartridge was never that popular so Commodore didn't bother fixing it. The 1541s couldn't read MFM CP/M disks anyway, so you pretty much had to transfer software over to them via a modem cable and hardly anything was released on 1541 format disks, just one Pascal compiler and a few programs Commodore offered themselves. Plus CP/M software was mostly designed for an 80 column screen which caused problems with the C64.

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it seems like 4:3

The 128 was okay. The Plus/4 was a mistake.

They're more reliable than C64s, which is surprising considering what a ridiculously complicated design the thing has. The power supply alone is leagues better than those wretched black bricks.

If you didn't know, MBASIC was the generic CP/M release of Microsoft BASIC-80. It's mostly like GW-BASIC sans the PC-specific hardware features.

I used Wordstar in CP/M on my Amstrad and that had a 40 col display. It had to access the disk a lot.

Does anyone know where to get the original CAD-like files that where used to make these PNGs?
visual6502.org/images/6502/index.html

Despite being a 128k machine and running CP/M 3.0, which was supposed to be designed for that, it still only gives you 64k for programs.

It puts the OS kernal in bank 0 and bank 1 is used for programs.

Anyway, here was the Sieve of Erasothenes program, taken from the September 81 Byte Magazine.

5 ?chr$(147)
10 si=8190
20 dimfl%(8191)
30 ?"Only one iteration"
40 ct=0
50 fori=0tosi
60 fl%(i)=1
70 nexti
80 fori=0 tosi
90 iffl%(i)=0then170
100 pr=i+i+3
110 k=i+pr
120 ifk>sithen17
130 fl%(k)=0
140 k=k+prime
150 goto120
160 ct=ct+1
170 nexti
180 ?ct," Primes"


In Commodore BASIC, you pretty much have to set the array to an integer to conserve memory, because the default floating point array size is 5 bytes per element, so that thing would take 40k of memory. Setting it as integer gets it down to 16k, but also executes slower because it can't really use integer numbers. The Plus/4 and C128 have enough BASIC memory that you can leave the array as floating point, other machines it will have to be set as integer.

From the testing I did on VICE, in C128 2Mhz mode, if I ran it with an integer array, it took 2:35. Setting it as floating point finished in 2:28. Running it in C64 mode took 5 minutes (yeah the C64 is slow).

>also executes slower because it can't really use integer numbers
???

Just what I said. Commodore BASIC is FP only. If you use integer variables, it just converts them back to FP, slowing down program execution.

The Amiga 500 was the only viable machine Commodore ever made after the C64.

What's with that one dude who, like, posts random Ebay auctions of TRS-80s and stuff.

They done fucked up good.

ebay.com/itm/Vintage-Commodore-PET-4032-12-Computer/163256826838?hash=item2602dd7bd6:g:qIIAAOSwDehbg3i3

>not in working condition
Meaning...?

not too retro but definitely old
muh new toy

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>ebay.com/itm/Vintage-Commodore-PET-4032-12-Computer/163256826838?hash=item2602dd7bd6:g:qIIAAOSwDehbg3i3
they probably just cant get it to turn on, it can be a large variety of things with these machines but theyre not too complicated
if the screen works, its a matter of fairly simple board repair for everything else
the 8 bit guy has a video on his restoration of one

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ebay.com/itm/Vintage-Tandy-TRS-80-Model-1-one/163264020027?hash=item26034b3e3b:g:vR0AAOSw38VboDwf

This could be caused by many things including loose/corroded connectors or ICs, it could also be a bad 7102 VRAM chip (they're notoriously flaky).

2102 SRAMs you mean. I wonder if it wouldn't be a better idea to just use an adapter and install a modern, freshly-made SRAM you can get from Digikey instead?

The ribbon cable for the EI and the keyboard tends to delaminate with time. You can make a new one by cutting down an IDE cable.

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I don't want to punch my computer screen, so no thanks.

Charging $300 for that thing if it's not in working condition is bullcrap. Fuck that seller.

I bet he licked that Himalayan salt lamp

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...so? It's salt.

Specs? Also, love the Live! Drive.

Continuing with my adventures, here I was trying to enter a very very long type-in BASIC Civil War sim from 101 BASIC Computer Games. It's long, it's tedious, compared to native mode Commodore BASIC, MBASIC is dogshit slow and editing lines is vastly more difficult--the manual for MBASIC is online, but I can't seem to wrap my head around the EDIT function. It's not like in Commodore BASIC where you can just move the cursor anywhere you want to go to edit a line.

So you ask yourself "Why do you do this, user? Why do you torture yourself like this?" Probably because I can.

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That shit with black drives (optical/floppy) would look sexy.

LGR would never do that.

I'd give him $50 for the whole thing.

Why does every one of these threads turn into LGR bashing? You guys need to seriously lay off the haterade.

>t.lgr

/v/iggers are obligated to hate anything that gets remotely popular regardless of property

Seriously, he's a cool guy who really knows his shit and probably has a lot more sex than all of you.

I see you Clint.

Clint its time to take a break from Jow Forums

No it doesn't.

Does sex with a dakimakura count?

...

The TRS-80 Model 4 was the first of the line to have a sound generator built in, although it was quite useless because it could play only 7 tones at 32 fixed durations, ranging from C to G flat.

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I don't hate anything, I just don't want to see this hipster shit in every thread.

If I could turn back time I'd convince IBM to stay out of the micro business for a few years and then clone the A500. Imagine a world where the Amiga dominated and the 68k took over instead of x86.

You wouldn't happen to own a Nintendo Switch, would you?

Wouldn't have happened. The Amiga wasn't a viable machine for the mass business/utility computer market.

>hipster
>switch basedface meme

red alert

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>saw a post on Lemon64 complaining he couldn't get new ribbons for his Commodore MPS printers
It is possible to make your own.

>get Mylar or a fabric ribbon
>cut it into strips
>dip it in ink
Done and done.

The hell it wasn't. Name one thing an IBM 5150 does better than an A500, both machines in stock configuration.

A PC among other things could have hi-res monochrome text/graphics, a math coprocessor, viable hard disk support, and was easier to write software for with fewer layers of abstraction. It was also far easier to upgrade and the software library was 100x better. The Amiga was too proprietary and did not have an architecture that lent itself to upgrading or customizing for whatever job was needed. Tasks like running CNC equipment would have been frustratingly difficult on an Amiga.

It would be more proper to use the IBM AT as a comparison since it was nearly a contemporary of the Amiga while the PC was a couple of years older.

Athlon xp 3200+, Geforce 4 ti 4600, 512mb of 400mhz ddr, 37gb WD Raptor, soundblaster audigy of some variant i cant remember
it runs windows 2000 and has a bunch of drafting software installed, still works fine
when i get the time ill set it up and test it out some, ill get more detailed specs too

got it in a lot of my entire dodge durango full of late 90's and early 2000's pcs and parts, met a cool dude who used to be a software tester as a hobby, 63 years old and used to run game servers for things like action half life and cs 1.6

hes trying to get back into it and is looking into building a new pc

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also in the lot was this John Deere themed PC
which is the most I N D I A N A thing ive ever seen

its a socket 7 system of some kind, i havent fiddled with it much

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It was purely marketing, capability wise it was obviously better. Nobody also used a C64 in the office either while everyone had one at home. The PC was supposed to be a glorified typewriter and it did that well.

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Just got these for free

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Everyone can get trash for free, user.

It had industry standard office applications and came with IBMs support and warranty.

it's an amiga 600 you doublenigger

1200*

Bump

Anyone know what server line my school may have had? It was a large Sun tower with a bunch of terminals that looked like this It was 2005-2006 and they were at least a few years old.