Re: [vcf-midatlantic] Happy Birthday IBM-PC
On Thu, Aug 12, 2021 at 4:27 PM madodel via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> wrote:
I don't think anyone had GB of anything back in the 80's. I remember back then when our IBM mainframe was upgraded to 1mb of core memory and that was serving 3 hospitals with 100's of terminals.
When I first started working at Software Results in the Fall of 1984, me and one of the other student workers were marveling at the 32-bitness of the VAX-11/750 (with 8MB of physical RAM in a 4GB virtual address space) and trying to envision how expensive and how large *Four Gigabytes* of RAM would be, and it was *immense*. This same machine (8MB RAM) could handle 70 dumb terminal users, but to be fair, it did swap a bit over 40 users. The two fattest apps we had were were VMS MAIL and MASS-11 (word processing). -ethan
On 8/13/21 3:24 PM, Ethan Dicks via vcf-midatlantic wrote:
I don't think anyone had GB of anything back in the 80's. I remember back then when our IBM mainframe was upgraded to 1mb of core memory and that was serving 3 hospitals with 100's of terminals.
When I first started working at Software Results in the Fall of 1984, me and one of the other student workers were marveling at the 32-bitness of the VAX-11/750 (with 8MB of physical RAM in a 4GB virtual address space) and trying to envision how expensive and how large *Four Gigabytes* of RAM would be, and it was *immense*.
This same machine (8MB RAM) could handle 70 dumb terminal users, but to be fair, it did swap a bit over 40 users. The two fattest apps we had were were VMS MAIL and MASS-11 (word processing).
I will take this opportunity to point out that that model has a clock speed of 3.125MHz. This is what efficient design is all about. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
On 8/13/21 3:27 PM, Dave McGuire via vcf-midatlantic wrote:
On 8/13/21 3:24 PM, Ethan Dicks via vcf-midatlantic wrote:
I don't think anyone had GB of anything back in the 80's. I remember back then when our IBM mainframe was upgraded to 1mb of core memory and that was serving 3 hospitals with 100's of terminals.
When I first started working at Software Results in the Fall of 1984, me and one of the other student workers were marveling at the 32-bitness of the VAX-11/750 (with 8MB of physical RAM in a 4GB virtual address space) and trying to envision how expensive and how large *Four Gigabytes* of RAM would be, and it was *immense*.
This same machine (8MB RAM) could handle 70 dumb terminal users, but to be fair, it did swap a bit over 40 users. The two fattest apps we had were were VMS MAIL and MASS-11 (word processing).
I will take this opportunity to point out that that model has a clock speed of 3.125MHz.
This is what efficient design is all about.
When the AT came out, to much fanfare, I was disappointed to find it could only run 1 application at a time. I have been so spoiled by OS/9 (Microware not Apple) that I couldn't understand why the AT (286/8MHz) cost more than the Gimix Ghost we had (multiuser/multitask, 6809 2Mhz - clocked at 8MHz). -- Linux Home Automation Neil Cherry ncherry@linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies
participants (3)
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Dave McGuire -
Ethan Dicks -
Neil Cherry