The prototype of the Altair 8800 was completed in Oct 1974 and was
announced in Jan 1975.
On Mon, Nov 4, 2024 at 10:01 AM Murray McCullough via cctalk
wrote:
>
> A lot happened in the computer industry in early Nov. in the past: Intel's
> x86 PC architecture was born; lo & behold Windows ME was r
> On Nov 4, 2024, at 12:15 PM, Mychaela Falconia wrote:
>
> Paul Koning wrote:
>
>> On the "one word clear", I missed a detail. I pointed out you get to
>> initialize the registers. You can also initiate one memory word. In other
>> words: choose two words in memory, and registers contents
On Mon, 4 Nov 2024, Bill Gunshannon via cctalk wrote:
I used Elephant. Still have piles of them and they are all still
readable (and probably writable but I don't want to lose the data
they hold.)
SOME batches of Elephant were quite good.
The biggest laugh I ever had was when we complained a
On 11/4/2024 1:38 PM, Fred Cisin via cctalk wrote:
Non-descript 5.25 DS/DD (they don't format as 1.2M disk using a 1.2
5.25"
drive, so I'm pretty sure they are actual 360KB disks). That said, I
On Mon, 4 Nov 2024, osi.superboard via cctalk wrote:
from my experience, these "Non-descript"
Non-descript 5.25 DS/DD (they don't format as 1.2M disk using a 1.2 5.25"
drive, so I'm pretty sure they are actual 360KB disks). That said, I
On Mon, 4 Nov 2024, osi.superboard via cctalk wrote:
from my experience, these "Non-descript" are often the cause for format
errors. Look for high q
haven't really fully confirmed if it's a 1.2M drive. TEAC FD-55GFR
142-U, because I haven't actually come across any 1.2M formatted media.
Teac FD-55GFR is a 1.2M drive that can also be used as a 720K 5.25" drive.
(FD-55G is 1.2M; FD-55F is 720K)
On Mon, 4 Nov 2024, Chuck Guzis via cctalk wr
On Sun, 3 Nov 2024, Steve Lewis via cctalk wrote:
Non-descript 5.25 DS/DD (they don't format as 1.2M disk using a 1.2 5.25"
drive, so I'm pretty sure they are actual 360KB disks). That said, I
haven't really fully confirmed if it's a 1.2M drive. TEAC FD-55GFR
142-U, because I haven't actuall
The other dectape (image below)
1 bit =- 1/8th inch
1 byte = 1 inch
DECtp Tape Measure DEC DIGITAL EQUIPMENT CORPORATION - 1980's - Picture
1 of 5
On 2024-11-04 7:23 a.m., Murray McCullough via cctalk wrote:
A lot happened in the computer industry in early Nov. in the past: Intel's
x86 PC architecture was born; lo & behold Windows ME was released upon the
world; for the corporate in us the IBM Portable Computer was introduced.
The PC world
Paul Koning wrote:
> On the "one word clear", I missed a detail. I pointed out you get to
> initialize the registers. You can also initiate one memory word. In other
> words: choose two words in memory, and registers contents, such that
> execution will give you a memory full of zeroes and a ha
> On Nov 4, 2024, at 12:34 AM, ben via cctalk wrote:
>
> On 2024-11-03 9:37 p.m., Tony Duell via cctalk wrote:
>> On Mon, Nov 4, 2024 at 4:06 AM Mychaela Falconia via cctalk
>> wrote:
>>>
>>> Paul Koning wrote:
>>>
1. Show a one-word PDP-11 program that writes all of memory, in reverse
Steve,
from my experience, these "Non-descript" are often the cause for format errors.
Look for high quality disk media like
Dysan 100 5.25 MD2D
2D/2D "BASF"
MD2-DD "Maxell" or
DS,DD from "3M"
In addition, these "Non-descript" disk are most likely pre-formatted by
factory, so Degaussing is rec
A lot happened in the computer industry in early Nov. in the past: Intel's
x86 PC architecture was born; lo & behold Windows ME was released upon the
world; for the corporate in us the IBM Portable Computer was introduced.
The PC world hasn't been the same since.
Happy computing,
Murray 🙂
not wrong, but in my benchmarks, the order of how long it took to clear out a
255 byte area exactly reversed between the 370/168 and 3033. I hope I remember
all the ways, not sure if I remember the order, or the exact syntax. Not
included are the 'costs' of storage required for code and data a
14 matches
Mail list logo
