Forum Home
Press F1
Thread ID: 42515	2004-02-13 08:10:00	History lesson	mark.p (383)	Press F1

Post ID	Timestamp	Content	User
215192	2004-02-13 08:10:00	For those interested in computer Operating Systems- www-306.ibm.com	mark.p (383)
215193	2004-02-13 08:32:00	"The only thing that you learn from history is that you learn nothing from history" attrib. Georg Wilhelm Friedrich Hegel "Those that do not remember the past are condemned to relive it" attrib. George Santayana. Why do Georg(e) possess all of the world's wisdom? What more do you need to know?	rugila (214)
215194	2004-02-14 02:39:00	"History is bunk" --- Henry Ford. The classic book on the process of building an OS is The Mythical Man-Month by Frederick Brooks. He was in charge of the project to build an OS for the IBM 360 in the 1960s for the IBM 360 family of "mainframe" computers. Some of them has as much as 32kB of memory.:D	Graham L (2)
215195	2004-02-14 03:10:00	Now, now, let us not be unkind about the System/360 machine range. The 360/40 that I cut my teeth on as an operator in 1968 had 256k, and the 360/65 that the big boys played with had a massive 1mb! That was an enormous machine, with 2m high cabinets stretching the whole width of the room. Nobody could understand what they would do with so much memory... Tony (those were the days...) Bacon	tbacon_nz (865)
215196	2004-02-14 09:02:00	>IBM 360 in the 1960s for the IBM 360 family of "mainframe" computers. Some of them has as much as 32kB of memory. I'm very puzzled by this. I was using the Univ of NSW IBM 360 in 1969 which was at the time reputed to be the most powerful computer in Australia. It had 1200kb of memory, lots more than the "as much as 32kb" posted here. What's the origin or reference to this claim of "as much as 32kb"? since at least one 360 at the time had far more than this, and I would have thought that even for then 32kb was a pretty low figure?	rugila (214)
215197	2004-02-14 09:26:00	I think the 360/30 had pretty limited memory, and there was even a 360/25, I think. However Rugila is right, the system 360 had some fairly grunty beasts in the range. The 360/65 I referred to was actually a very powerful machine, and it was not the top dog. The machine room I was working in at the IBM Development Laboratory in southern England had one /65 at one end, and another at the other, with the minnows in between. The two /65s were used to develop the IBM PL/1 compilers (For all you youngsters :D PL/1 was supposed to be IBM's answer to COBOL), and the experts could tell what the machines were doing from the other end of the room by recognising the patterns of blinking lights on the front panel. Tony B.	tbacon_nz (865)
215198	2004-02-14 09:30:00	Does bring back fond memories?- www.beagle-ears.com	mark.p (383)
215199	2004-02-14 09:57:00	>Does bring back fond memories?- Fascinating! So Graham L is right. I see they went down as low as 4k on a model 25, and even my model 40 of fond memory went down to 16k. The whole system/360 concept was a huge gamble for IBM. A man name T.V. Learson basically bet the company on the concept of a range of machines with a unified instruction set, and fortunately for them it was hugely successful. Tony (getting more nostalgic by the minute) Bacon	tbacon_nz (865)
215200	2004-02-14 21:39:00	There's some quite neat links off that page. It's interesting see how far computing has come. You guys must must have been at fore front of the "revolution" ;). Me, I'm just a curious hobbiest.	mark.p (383)
215201	2004-02-14 22:38:00	> "The only thing that you learn from history is that > you learn nothing from history" attrib. Georg Wilhelm > Friedrich Hegel > > "Those that do not remember the past are condemned to > relive it" attrib. George Santayana. > > Why do Georg(e) possess all of the world's wisdom? > > What more do you need to know? "Only a lack of intelligence has prevented me from finding weapons of mass destruction..." - George W Bush Jr. The exception that disproves the rule... ;) :D Lizard	Lizard (2409)
1