fivemack: (Default)
Tom Womack ([personal profile] fivemack) wrote2004-06-07 09:32 pm

Rightsizing

I have a laptop fit for an itinerant computational mathematician; half a gigabyte of memory, P4/2800, three large fans.

I have now realised that I am not an itinerant computational mathematician, and, after looking around the sea of iBooks and Vaios at NotCon, have gone onto eBay and bought a second-hand Thinkpad 240. It's the kind of laptop I used to have, carried backwards and forwards to college for eighteen months in a standard A4 Jiffy bag; I wrote most of the text in my thesis on it. It weighs a third as much as my current laptop, and has a tenth the CPU power; that is, it'll be idle only 90% rather than 99% of the time.

It's, err, about the equivalent of downgrading from a Cray 2 to a Cray 1 in order to read email, IRC, and write Livejournal postings. Since these are tasks the equivalents of which our ancestors performed quite happily with a quill pen, and the new machine will still be more powerful than the systems on which the US's current nuclear arsenal was designed, I don't feel I'll be underpowered.

I'll put the big laptop on ebay when the small one arrives, and see if I was right to anticipate depreciation of 50% per year.

On that subject...

[identity profile] tombee.livejournal.com 2004-06-07 02:58 pm (UTC)(link)
Louisa and I were recently unsure as to whether a 1984-ish Cray 2 was actually more or less powerful than, say, a 2002 top of the range desktop PC. I reckon less. Are you a) able to advise, and b) ever so slightly scared by all this?

[identity profile] dd-b.livejournal.com 2004-06-07 02:59 pm (UTC)(link)
Laptops were one of the last things in computers to get there, but *good enough* is one of the most important milestones; specifically the point where down-market stuff is *good enough*.

There's a laptop I'm faunching after at the moment (but have no actual need for, and no money to buy just as a toy); it's a 12" display (and laptop form-factor), 2GHz AMD processor, 512MB ram, CD-RW/DVD drive, I think a 30GB disk. And at least last week I could have bought it new at a local store for $700. I think it's powerful enough and has enough RAM for photo work on the road, and the ability to write CDs means I would have a meaningful way to make relatively secure archive copies of photos I took away from home.