Home > Amiga, Delphi, Language research, Linux, Object Pascal, Quartex Pascal > Aros, winner of most interesting OS

Aros, winner of most interesting OS

Right. As most readers know by now – once a year I get this unstoppable desire to check out all things alternative in the realm of operative systems. I mean, it’s important to stay on top of our game as developers, and the only way to do that is to make an effort. In this case an effort to look at upcoming systems which may become our own sometime in the future.

And as always one of the criteria is (drumroll) that they should support Object Pascal.

The AROS operative system

Aros desktop, not exactly graphically impaired

Aros desktop, not exactly graphically impaired

Now this year’s winner of “most interesting and promising operative system” must be Aros. It’s a fantastic little OS with plenty of features, and almost as interesting as the operative system itself is it’s exciting and rich background. How do you know that users love their OS? When they decide to reverse engineer it from scratch after the owner goes belly-up, just to make sure it survives (!).

Yes, that was the case with Aros; It’s actually an old-timer in the group of “new operative systems” because Aros is short for “Amiga research operative system”. Yes you read right, Amiga, as in the 1983-2001 prodigy home computer. Odds are that you owned one of these machines in your teens or at least heard of it, and if that is the case then you most likely remember Amiga OS. This was a wonderful operative system lightyears ahead of it’s time. It actually was technically superior to Microsoft, IBM and all the other players back then with around 12 years. That it’s potential was never realized ultimately came down to some spectacularly bad business decisions at Commodore. Never let people who cant code run a computer company.

For my part I remember Amiga OS vividly. My best friend at the time owned an IBM PC and while he was stuck in DOS playing Larry Leasure suite, I was doing things he could only dream about under Amiga OS. I actually learned all my programming skills on the Amiga, so I was an above and beyond fan of the system throughout my teens and well into college.

It was only when Windows 95 came along with it’s fancy new driver system, fast graphics processor and soundblaster cards that the tables were turned. But for roughly 13 years (in Norway at least) the Commodore Amiga was the undisputed champion; both operative-system wise and game/multimedia wise. It was cheap, efficient and the #1 creativity machine. In fact Apple only recently implemented support for REXX which is a scripting system Amiga OS supported from 1990 and beyond (version 1.3 of the software). That speaks volumes about how far ahead Commodore was.

Ok, but what can Aros offer?

Classic Amiga OS version 4

Classic Amiga OS version 4

If you are expecting a boring, grey desktop and faithful reproduction of the early 90’s then no, that is not what Aros is about. Aros is reverse engineered from the Commodore Amiga OS formula; based on available API documentation. As such it’s designed to be compatible on API level, not binary compatible with ancient 16 bit software. In short this means that you can take an Amiga C source-code for instance and re-compile it to run under Aros. But Aros really represents something much more valuable than retro flirting: It represents an actual future for an OS which delivered multitasking a desktop environment 10 years before Windows 3.11 was invented.

The reason Amiga OS has survived all these years is because it’s underlying architecture is brilliant. The way drivers work, the layout of the file-system, how libraries are loaded, how memory is managed, how multi-tasking is solved — all of these things are dealt with in a way which makes for a fast, responsive and highly enjoyable user experience.

It’s not like Windows where evolution meant patch after patch after patch. Amiga OS was designed to avoid bloat. It was designed to deal with libraries and extensions gracefully and intelligently. It was designed to boot fast, respond fast and deliver maximum performance with ridicules sparse resources. Amiga OS boots happily into as little as 4 megabytes of RAM. Yes you read right, four megabytes (not gigabytes). And the speed is phenomenal, you wont believe it until you try it.

Aros is absurdly fast

Aros is absurdly fast

So, with Commodore long gone and the copyright holders showing no interest in doing anything with the Amiga brand, Aros is ultimately the last hope of a realization of this 30 year old dream. A dream of a small, compact, fast and “no bloat” operative system performing miracles from pennies and scraps of ram and CPU. And it works brilliantly. The formula which Carl Sassenracht (the authorof large parts of the OS) deviced all those years ago has proven to be the software equivilent of the ARM processor. ARM was likewise an “old timer” technology until recently. It was almost shelved and taken off the market, it was just by accident that they discovered that the ARM architecture could run just as efficient on low-voltage as it did on “ordinary” power. Had it not been for that economic feature, ARM RISC cpu’s would be a thing of the past.

The Amiga is just like that. An older formula and architecture of an operative system, but one which delivers so much computing power with absurdly few resources. Imagine what Aros can be with a few years of development behind it, and perhaps a couple of hundred programmers?

Have you ever wondered just how fast your PC really is? Imagine how fast Windows would be if it was hand-coded in object pascal and assembler. Not a single procedure wasted and no bloat what so ever. Well with Aros you will find out, or at least as close as you can get. Aros is written in C/C++ (like most operative systems), but the architecture and philosophy ensures that it remains small, efficient and lean. My Aros PC boots in around 3 seconds from powering it on until I can use the desktop. And this is on older hardware (my test machine was a 8 year old dual-core system with 4 gigabytes ram). The desktop is snappy and things like moving windows around, playing video — it’s so bloody fast you will hardly believe it.

To be honest, if Aros keeps this up it will turn into a money saver. Windows and Linux has gained weight over the years, both in complexity and media integration. Aros represents in many ways a clean start, a start with a vision which is now 30 years old. A dream of an OS so lightweight, elegant and easy to use that it makes computing fun again. An OS where efficiency matters and everyone tries to tweak the last drop of CPU out of their code. A system where code is regarded as a work of art.

What about software?

This is why I have given Aros a Mickey rating (both winner and loser), because software will always be a new operating system’s achilles heel. But it’s really not as bad as you think. It’s millions of miles beyond obscure systems like Risc OS (recently re-surfacing and enjoying a renaissance on the Raspberry PI). Why? Well, first of all the Aros authors have provided tools for porting from Linux free for all. Secondly, they have made a few extra libraries to facilitate porting to the platform — and third, because Aros can run 68k (Motorola 68000 CPU) based software!

Loads of juicy titles for Aros, but more is needed

Loads of juicy titles for Aros, but more is needed

That’s right, Aros is capable of running almost all classic 16 bit Amiga software through UAE integration. And believe you me, 20 years of coding makes for a rich and mighty collection of software titles. But yes, this large resovare of software is older. So if you are expecting Adobe dreamweaver, mono developer or Photoshop — that’s not going to happen any-time soon.

But if you can live with The Gimp, like millions of Linux users do — then you will find Aros well stocked in the graphics department.

Software development

And now for the biggie. Does Aros support object pascal? That is the mother of all questions isnt it, at least for us Delphi, SMS and FPC developers. There is no point using a platform we cant program for right?

Well I am pleased to say that Aros does support object pascal and there is a full port of freepascal for the platform (!)

Lazarus is still being ported, so it's not quite ready

Lazarus is still being ported, so it’s not quite ready

It must be underlined that Lazarus is still being ported (!), only FPC is ready out of the box, but lazarus will be excellent on this platform! Lazarus feels more at home with Linux due to it’s multi-window layout. Well, Aros is based on Amiga OS which means you can run applications in their own separate screen. And in such an environment Lazarus really comes into it’s own. It’s the undisputed king on Linux, making mono/C# look like a sad toy in comparison.

Using Aros as a real desktop

Before you sell your house and donate your mother to science, you should give Aros a proper test-drive. You dont want to wipe you Windows installation without really knowing what you get. I recommend installing Aros into a VMWare image first (or some other x86 free emulator from Sun) just to get to know it properly. Remember to create two partitions, one boot and one work (larger). This is more or less traditional for Amiga systems.

Is it ready to be the default desktop? Soon

Is it ready to be the default desktop? Soon

To get a hold of software you point your browser at Aminet, which is the #1 source of 68k and more modern software. There you will find classic stuff like PPaint, Deluxe Paint and ofcourse, freepascal. Exploring the Aros website is also a good idea.

Like all small communities (just like the Delphi community) there are forums you can become a member of. This is perhaps a good start so you have someone to ask and help you out. But Aros / Amiga OS is so much simpler than any OS you have tried to date, so once you “get it” you will be able to navigate most of it without help.

Entering a platform with a bang

The utter upside of any platform is that there will be a huge demand for software. In fact, the worst platforms to create software for is in many ways Windows and OS X, because there you will find hundreds of different alternatives doing the same thing.

On a new, fresh OS the competition will be weaker and you stand a good chance of making some cach once the user-base has brown beyond 10.000. I have no idea how big the Aros world is, but I do know there are at least 10.000 Amiga users in the world, be they retro-gamers or die-hard Amigans. The Amiga is actually a phenomenon. It’s 30 years since it was created this summer; and it went out of production around 1999 (Commodore filed for bankryptsy in 1994, but the license to produce and sell Amiga lingered on for many years). Yet still there is a living market for these machines. These are 30 year old computers running at 7 Mhz (not Ghz, but Mhz), yet people love them to death and still use them in their thousands!

It's an impressive feat, remember this is a user project!

It’s an impressive feat, remember this is a user project!

It should be mentioned that a CPU frequency comparison really means little for the Amiga. It has a set of custom chips dealing with memory copying, pixel moving and everything else. Also the motorola CPU is very different and can do a lot of stuff intel cant with few instructions.

The Amiga was ultiately beaten technically by the lack of single-datatype pixels (e.g: 1 byte for 8bit, 2 bytes for 15/16 bit, 3 bytes for 24 bits and 4 bytes for 32 bit graphics) like the PC have. The Amiga had something called inter-leaved graphics which means a single picture is divided into X layers at different places in memory. For a 32 color display you actually have to write to 5 different memory addresses to set a single pixel (!)

In short, the Amiga has to work 5 times as hard to deliver the same as a PC. Yet you will see these old Amiga computers knock out effects and demos which are en-par with modern PC demos. It really is a strange and mysterious social phenomenon, shrouded in mystery and lore — the platform just wont die! It’s almost ridicules how much beating this system takes, yet there it stands — a reminder of what could have been. An alternative reality which could have been ours where operating systems were light, fast and fun – as opposed to big, bloated and expensive.

Freepascal on Aros

One of the things I love about object pascal no matter the dialect, is that just like the Amiga – object pascal is a language which just wont go away. People have been predicting the downfall of object pascal for decades now, yet object pascal is still highly popular and very much in demand around the world. And just like the Aros team reversed engineered Amiga OS from scratch, so did the FPC and Lazarus team do with Delphi. They cloned a free, open-source version of a language and development platform they loved – to ensure that it would survive regardless of it’s legal owner’s whims.

Older freepascal running under AROS

Older freepascal running under AROS

The result today is that object pascal has a huge, staggering, overwhelming public domain library of source code. You will find units and libraries for just about every conceivable topic. From super-fast games to serious and excellent tools — object pascal have it all.

This means that with a bit of porting work, replacing OS calls where possible – or re-implementing stuff in pure object pascal, thousands of titles could be implemented with ease on the Aros platform. A person with skill and a bit of time on his/her hands can really make a nice bit of money here, by charging a small fee for each program and being honest and give support, the Aros platform would grow rapidly — and your income with it.

Final verdict

Hm. This is always the tricky part.

Aros is slowly becoming a complete desktop environment. I think it’s important to separate OS from desktop, because they are essentially two different things. The OS is what makes a desktop possible, what makes windowing possible, what makes everything possible. A desktop is the human interface into those features- typically provided through default programs and behavior.

Aros is, shortly said, a pretty faithful re-implementation of Amiga OS. But it has evolved away from the old Amiga look and feel (thankfully). But while the underlying OS is no doubt up for the challenge, the desktop experience and default software doesnt quite impress. At least not users who havent started an Amiga in 20 years, or people who have never used an Amiga at all.

Having said that Aros is “almost there”. It’s missing a few minor applications which will add the final touches, but most of all it’s missing that “killer application” to make it popular. For Microsoft it was Word that started it all, for Mac it was no doubt Photoshop, Logic and pro-tools (counting from when Steve Jobs came back up until now), followed by the “family package” which is iMovie, iTunes, iThis and iThat. You get fantastic apps with your mac and that draws customers in.

What Aros really needs is a fantastic software package which only exists on that platform. What exactly that should be I leave to you, the reader. As object pascal programmers and armed with the might and onslaught of our collective source-code repositories, I have no doubt what so ever that it can be object pascal that delivers this — but it will require hard work, dedication and a vision.

If Linux is not your thing — head over to The AROS website and have a look — and yes, it’s free (!)

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  1. January 9, 2016 at 4:20 pm

    Classic Amiga OS would run in half a megabyte, never mind 4MB! 🙂

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