Don Haines said:
distant.star said:
tpatana said:
Well, most of us carry a device in our pocket that's smaller than a cigarette box, battery powered and would have been considered super computer some 30 years ago, capable of accessing all the information in the world.
The character, Virgil, in the 1974 movie "The Apprenticeship of Duddy Kravitz" said it best...
"That's a falsehood."
I used to use the UNB mainframe.... at one time it was the third most powerful computer in Canada.... It processed 32 bit instructions at one million instructions per second and had 200 Megabytes of online disk and tape storage.... that's not enough computing power to play an mpeg song....
The most powerful computer in Canada was a Cray 1 supercomputer.... 64 bit processor and capable of executing 80 MILLION instructions per second.... and it had 8 Megabytes of memory! It only weighed in at 11,000 pounds and sucked back 120 amps 3-phase at 600 volts/phase..... now THAT was a computer!
My ipad has a 3 core 64 bit processor that runs at 1.5Ghz, 6 Megabytes of on-chip cache.... and an 8 core GPU thrown in as well.... and 128Gbytes of storage.... over 100 times the computing power of that Cray 1 super-computer.... 16,000 times as much memory.... and it's a phone.... and it's a camera.... and it runs all day on battery..... and yes, you have access to all the info in the world.....
And yet, the cray might still run circles around it doing the job it was intended for. Iiphone and the like is fast because its ultra specialized, the cray could do math at crazy speeds. I remember when we got ours for aerodynamic computations and simulations.
I tool programming lessons on a pdp 8, throwing switches to set the program into the memory, and then learning to do a bootstrap loader to load the program via punched tape from a teletype machine. My first computer was a Atari 400 that I bought for my son, but used it myself too. When the IBM PC's came out, I bought a clone and learned that Dos was basically a Unix clone. Then next PC I built myself, and did that for many more years. At one early point, our not so computer savy boss bought a hundred or so HP150 pc's, intending to run them from a HP mini computer that he also bought. It was a disaster, but he did not have money left to buy software for the individual machines. Eventually, we talked him into buying Macs and PC's. We managed to get a Lisa which was a beautiful machine and precursor to the Macintosh.