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- Xref: sparky comp.windows.x:14397 comp.windows.misc:1104
- Path: sparky!uunet!cs.utexas.edu!torn!utzoo!censor!isgtec!bmw
- From: bmw@isgtec.com (Bruce M. Walker)
- Newsgroups: comp.windows.x,comp.windows.misc
- Subject: Re: Xterminals versus PC-with-eXcursion
- Summary: X-Terms: Yeah! PC's: Phht!
- Message-ID: <2885@isgtec.isgtec.com>
- Date: 25 Jul 92 19:09:09 GMT
- References: <1992Jul23.150517.19063@alw.nih.gov>
- Sender: root@isgtec.com
- Distribution: na
- Organization: ISG Technologies Inc., Mississauga Ontario
- Lines: 65
-
- In article <1992Jul23.150517.19063@alw.nih.gov> susanc@helix.nih.gov (Susan Chacko) writes:
- > We were thinking of getting some NCD Xterminals to replace our
- > VT220s when we came across a demo for eXcursion, which is
- > offered by Digital [...]
- > Since one could buy a PC with Windows for less than
- > the cost of an Xterminal, and get the potential for local
- > applications like wordprocessing as well, what's the
- > advantage of an Xterminal?
-
- I don't think this is really true when you talk about similar screen
- sizes, which is a key point.
-
- Typically, X display screens are larger than 1024x768; the inexpensive
- NCD-15b's have 1024x800, most workstations are in the 1280x1024 range.
- The largest 'inexpensive' PC display is Super VGA, 1024x768, but any
- I've seen has flickered badly enough to make it unusable on a daily
- basis (even with non-interlaced displays).
-
- If you just need to replace VT220's, then you can live with a "smaller"
- X screen. An "xterm" window (VT220 emulator) is about 700 pixels wide,
- with window-manager decorations and all. So let's look at that.
-
- An NCD-15b is about $1000 US, so is the new Tektronix. They're
- monchrome, high resolution, high vertical scan rate (rock-solid
- display, no flicker). The box is compact, has no fan, comes with your
- choice of keyboards: VT220, 97 key "Unix" style, etc. They have
- excellent X performance, the processor has a fast path to video RAM.
-
- The PC: you need a 33 MHz 386 (at least) to run Windows with any
- performance, min 4 Meg RAM, a hard disk to boot it. It has a fan,
- likely fairly large box (mini tower), you have one keyboard flavour,
- 101-key IBM. Let's put in a SVGA card and non-interlaced monitor
- capable of 1024x768. It will cost a lot: $700 for PC, $300 for
- display, $200 for TCP/IP stack, $200 for X-on-pc s/w, $100 for
- windows. Total: $1500. It'll be fuzzy (mono vs. colour) and it'll
- flicker (low vertical scan rate). I bet it will have pretty slow X
- performance (I've played with them), the bottleneck is the poor
- performance of VGA on an ISA bus.
-
- > I'm also interested in any experiences with particular
- > brands of Xterminals, i.e performance, cost etc., especially
- > from anyone who has been through this decision recently.
- > Any additional comments are most welcome.
-
- I suggest that you get some vendors to let you try them on a trial
- basis. Make sure they support XDM (for booting and the login: prompt
- management). Find out how much RAM you need to get some real work
- done, and believe them, don't cheap-out later.
-
- Oh, and try a copy of the X-on-PC s/w out as well. Have people try
- real work on it. Bring up a couple of xterms and a clock, play with
- the scrollbars (this will likely look bad). Just buy one copy and
- install it on an existing PC. We went through this and no-one uses the
- X-on-PC s/w :-)
-
- We ended up with NCD-15b's (10) and one colour NCD-14c. We are a
- s/w development shop (imaging) with a lot of workstations (HP, DEC,
- IBM, Sun, SGI etc.)
-
- Have fun and good luck!
-
- --
- "The path of my life is strewn with cowpats from the devils' own herd."
- -- Edmund Blackadder II
- bmw@isgtec.com [ ...!uunet.ca!isgtec!bmw ] Bruce Walker
-