Mac: dual-core 64-bit 1.83GHz CPU, 1GB RAM, 80GB hard disk, CDRW/DVD. Rich, superbly simple & easy to use 64-bit UNIX OS, with web browser, email, diary, address book, audio-video chat, image editing, video editing, word processing, DTP, spreadsheet, presentations, all provided as standard for free. Supports IMAP, Flash, Java, RealPlayer, Windows Media, PDF, out of the box. Supports Ethernet, USB2 & Firewire out of the box. Massive 3rd party software range, plus most Linux GPL apps, and and can run Windows via optional free add-on package.
Iyonix: more than twice the price. Single-core 32-bit system, less than one third of the speed. OS provides GUI, text editor, simple vector drawing app, simple music app. No Internet client as standard, I believe? Partial incomplete Flash support a paid-for 3rd-party extra. Offers no Java, no Real, no Quicktime, no Windows Media. Comes with no productivity apps, I believe? OS can be brought down by a single misbehaving app or frozen by one taking all available CPU time. Small selection of 3rd party apps, mostly commercial, little Free or GPL software.
The Iyonix is much slower, much lower spec, does less, offers less, and costs more than 200% of the Mac's price to buy and yet more to run.
I'm not an Apple advocate here - I'm typing on a generic several-year-old PC running Ubuntu - but come *on,* play fair!
Apple alone currently sells one-sixth of all notebook and portable computers in the USA. I realise the comment was at least in part facetious, but it's not even slightly factual.
RISC OS has its uses, but it is a *very* /seriously/ expensive option today.
You can buy an entry-level Sun Ultra 20 workstation with Solaris for £600. Thw world has moved on. Macs are price-competitive, small cheap PCs are £300, professional high-quality kit starts from six or seven hundred quid. A cheap PC today is a couple of hundred quid. That's with a screen and so on.