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Comment: Re:EEE (Score 0) 212

by Dadoo (#48620749) Attached to: What Will Microsoft's "Embrace" of Open Source Actually Achieve?

To extend and extinguish, of course.

Yeah... My guess is that, after this announcement, developers are going to say to themselves, "Great, now we don't have to learn how to use new tools to create software for Linux", and do all their work on Windows. Fewer people will work on development tools for Linux, too, because they can use tools that already exist on Windows to create software for Linux.

Then, in five or ten years, when everyone's using Microsoft's tools, they'll claim no one's using them to port to Linux, anyway, and drop support. Developers will have no choice but to use Linux's (poor or non-existant) development tools, or drop support for Linux, altogether.

Brilliant!

Comment: Anything that's OS independent? (Score 3) 258

by Dadoo (#48596143) Attached to: Ask Slashdot: Best Software For Image Organization?

As long as we're on the subject, I'd like to know about such software, too, but I'd like something that's OS independent, and stores images locally. My mom has an enormous collection of family photos, dating back to the early 20th century, that I'd like to catalog while she's still around. It would be nice if she could do the annotations on her Windows machine, while I organize everything on my Linux machine. Ideally, we could copy the images and associated data back and forth using a CDROM or USB key.

Comment: Re:YES !! (Score 1) 238

by Dadoo (#48586507) Attached to: Is Enterprise IT More Difficult To Manage Now Than Ever?

"Why do you need that $700 enterprise-grade AP? Just use the $69 linksys one like I do at home!"

I just got a very similar question, yesterday.

We're adding 350 workstations (and PoE phones) to our network - something for which we should be seriously looking at a Catalyst 6500 or a Nexus 7000, right? No, I cheaped out and got some Catalyst 2960s and a pile of SF500s. Total cost? $20000.

What's the first question they asked me? "Nowadays, I can get two terabytes of hard disk for $100. Why do we have to pay so much for our network ports?"

Comment: Re:They can go bite a donkey (Score 1) 693

by Dadoo (#48549295) Attached to: French Publishers Prepare Lawsuit Against Adblock Plus

They use my bandwidth (without permission)

You know, I don't even have a problem with that. I kind of feel like looking at their ads is the price I pay for viewing their content, and (assuming the ads were less intrusive) it's better than having to explicitly pay for every site we access. I held off installing Adblock for a long time, but when their ads are so CPU intensive they hang my browser for minutes at a time, that's where I draw the line.

Comment: Re:The original 68000 interrupts were inadequate (Score 1) 147

by Dadoo (#48442557) Attached to: Linux On a Motorola 68000 Solder-less Breadboard

Interrupts worked fine. It was bus errors (i.e. for off-chip memory protection and/or mapping units) that were a problem. The 68010 fixed that particular issue if I recall.

You're correct, except for the fact that it wasn't a bug. The original 68000 simply wasn't designed for use with demand-paged virtual memory. To make that happen, you need to either save the processor state somewhere (which the 68010, 68020, etc. did) or have restartable instructions (the approach used by National Semiconductor, for their 32000 series). I vaguely remember reading that Motorola switched to restartable instructions in the 68040 or 68060, but I'm not sure.

Comment: Re:68010/@2MB ran a unix variant (Score 1) 147

by Dadoo (#48442495) Attached to: Linux On a Motorola 68000 Solder-less Breadboard

My first exposure toboth UNIX and 68K was with a Motorola VME/10 system

I've actually used one of those. Pretty decent machines, for their day. I especially liked how they had two ways to access the graphics memory: one by bit-planes, and the other by pixels.

You're lucky; my first 68K experience was on a Vicom image processor. It was a 68000-based machine, running VersaDOS. Talk about a terrible OS - even MS/DOS would have been better.

Comment: Re:Nice... (Score 1) 147

by Dadoo (#48442457) Attached to: Linux On a Motorola 68000 Solder-less Breadboard

The '020 supported external memory management (MC68451)

No, the 68451 was for the 68010 - though since it was a segmented MMU (rather than demand-paged), I imagine it could have worked with the 68000, too. The 68020 used the 68851, which was a demand-paged MMU.

http://en.wikipedia.org/wiki/M...

http://en.wikipedia.org/wiki/M...

Comment: Re:Hey, congratulations (Score 1) 147

by Dadoo (#48442397) Attached to: Linux On a Motorola 68000 Solder-less Breadboard

The 68030 could hold short loops in its chip logic with some tricks, despite not really having a cache. Unfortunately, the 68040's on-chip cache implementation was horrible and created all sorts of problems for implementers, and by then Intel chips were running much much faster

No, you're thinking of the 68010's "loop mode", where tight loops didn't require memory accesses for instruction fetches (after the initial instruction fetch). Both the 68020 and 68030 had caches.

http://en.wikipedia.org/wiki/M...

http://en.wikipedia.org/wiki/M...

Comment: Re:"Now the userbase needs to expand" (Score 1) 77

by Dadoo (#48223515) Attached to: PCGamingWiki Looks Into Linux Gaming With 'Port Reports'

Why would anyone want to watch someone else play video games?

Have you never heard of YouTube? Try searching for "let's play", sometime. Some of those videos have over a million views. Even the less popular stuff, like Minecraft, pulls in enough advertising money for these people to make a living from it.

Comment: Re:Every time XKCD 936 is Mentioned (Score 2) 549

by Dadoo (#48134353) Attached to: Password Security: Why the Horse Battery Staple Is Not Correct

Just because the author asserts that the password system is broken doesn't make Randall Munroe's point about passwords incorrect.

That was the first thing I thought of, but I still thought the author made a few good points - especially the part about wanting to get rid of passwords, entirely - and I wanted to see what other Slashdotters thought.

+ - Password Security: Why the horse battery staple is not correct

Submitted by Dadoo
Dadoo (899435) writes "By now, everyone who reads Slashdot regularly has seen the XKCD comic discussing how to choose a more secure password, but at least one security researcher rejects that theory, asserting that password managers are the most important technology people can use to keep their accounts safe. He says, 'In this post, I’m going to make the following arguments: 1) Choosing a password should be something you do very infrequently. 2) Our focus should be on protecting passwords against informed statistical attacks and not brute-force attacks. 3) When you do have to choose a password, one of the most important selection criteria should be how many other people have also chosen that same password. 4) One of the most impactful things that we can do as a security community is to change password strength meters and disallow the use of common passwords.'"

"There is nothing new under the sun, but there are lots of old things we don't know yet." -Ambrose Bierce

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