I know it was an Ultimate. I worked with MCD during that time and they used the ultimate x's somewhat for comparison purposes. I worked with Ted in 1978-79 before he spun off from 4 Gary Rd.
Again, what would an 'x' be in MHZ. Or for that fact, what would a MCD spirit 600 be. One of my clients still has one and I could reference it against some of my 2.4Ghz D3 clients. my 1 cent. ----- Original Message ----- From: "Roger Glenfield" <[EMAIL PROTECTED]> To: "U2 Users Discussion List" <[EMAIL PROTECTED]> Sent: Saturday, April 24, 2004 11:17 AM Subject: RE: How far can U2 scale? > Circa 1983-85. I'm pretty sure that Ted was showing off a Honeywell Level 6 > and not a Microdata. > > Ultimate's X calculations were based on the native speed of the cpu. > > Original Level 6, circa 1979-81 = 1x > The 5x board came out in 1982-83. If I remember correctly, my tests showed > the speed was more like 3-4 times faster. But you could add a bunch more > terminals without slowing down. > I never saw a 7x and don't know when it came out. > We had one site that needed a 10x, but Ultimate and Honeywell Bull Germany > couldn't keep the machine stable. So the site went to another platform. > > At least that's my 20 year old recollections. > Roger > > -----Original Message----- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > > Behalf Of Mark Johnson > > Sent: Saturday, April 24, 2004 12:55 AM > > To: U2 Users Discussion List > > Subject: Re: How far can U2 scale? > > > > > > A bit of history here. I'm sure that these high user counts all > > participate > > with telnet connections. Back in the day, I believe circa 1983-5, Ted > > Sabarese, president of Ultimate, illustrated one of the highest number of > > connected *serial* terminals on one system. It was an interesting > > photograph > > as he lined up 1,000 dumb terminals on the bleachers at a local > > high school > > and had them all BLOCK-PRINTing something like their port number. > > > > I don't exactly remember the machine's specs, but given the Microdatas of > > that time it probably had 260MB disc drive, 8 MB of 'core' memory and the > > latest '14x' processor. Boy, I wish I knew what those speeds of > > those older > > systems were in today's terms. 2x, 7x, 14x...What's an 'x'? IIRC, the > > original IBM-PC was 4.7Mhz. > > > > My 4.7 cents. > > > > > > > -- > u2-users mailing list > [EMAIL PROTECTED] > http://www.oliver.com/mailman/listinfo/u2-users -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users