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- Message-ID: <01GO2W0TFT9Y00200Z@vaxb.acs.unt.edu>
- Newsgroups: bit.listserv.cdromlan
- Date: Thu, 27 Aug 1992 15:19:54 -0500
- Sender: "CDROMLAN@IDBSU - Use of CDROM Products in Lan Environments"
- <CDROMLAN@IDBSU.BITNET>
- From: FB23@VAXB.ACS.UNT.EDU
- Subject: Re: Menus vs Windows
- X-To: CDROMLAN%IDBSU.BitNet@pucc.PRINCETON.EDU
- Lines: 71
-
- Edward J. Craft recently made some comments concerning workstation selection
- in regard to a discussion on the pros and cons of Windows used with CD-ROM
- networks:
-
- The gist of the message seemed to be that processor technology, graphics
- standards, etc., were not terribly important in the choice of a workstation
- for LAN CD-ROM access. I would like to disagree for the following reasons:
-
- 1. In a LAN environment, CPU speed/technology is vitally important. Remember
- that applications (such as CD-ROM search software) is running at the
- WORKSTATIONnot at the server. We have done tests indicating radically
- different search
- performance between XTs, ATs (both 12 and 16 MHz) and 386s. This one factor
- may be the greatest single factor in ensuring patron satisfaction. The novelty
- of patron 'self-searching' of CD-ROM databases wears off fairly quickly. Fast
- performance becomes ever more important since patrons quickly tire of waiting
- for system response.
-
- 2. Certain capabilities inherent in 386 and better chips (such as advanced
- memory management, etc.) are becoming ever more important due to performance
- enhancing features of the search software programs themselves, the large
- required free memory space and the increasing use of Windows compatible
- search software.
-
- For example, with the virus software that we load, redirectors, LAN drivers,
- etc., you can easily be left with much less than 500K on a 640K PC/XT. DOS
- 5.0 and 4.01, in this case, can exacerbate the problem since the kernal is
- larger and you cannot make use of DOS 5.0's memory management tricks to
- free conventional memory. It is vital to have the capabilities of the 386,
- 486, or even the limited capabilities of the 286, to make things run better,
- or in some cases, the enable applications to run at all.
-
- 3. Graphics capabilities (including color) can be very valuable at the
- CD-ROM workstation. Information is highlighted and delineated through
- color. Color provides a more attractive display for the patron. More
- applications require graphics capabilities. Sorry, but CGA just doesn't
- do it. The standard is not usable with many graphics applications and
- text generally is very painful to read for any length of time. If you
- have to economize, straight monochrome is preferable due to text quality.
-
- VGA (and SVGA, for that matter) have come down in price to the point where
- there really is very little reason to forego the advantages of this
- technology simply for reasons of cost.
-
- All of the above is not to say that IF YOU REALLY HAVE TO, that you cannot
- make do with slow equipment. If you cannot afford better, you do what you
- have to do. However, if you have any choice in the matter, the WORKSTATION
- IS NOT THE PLACE TO ECONOMIZE.
-
- Our minimum new workstation configuration is an 80386SX/20-25MHz PC with
- 4 megabytes of RAM, and Super VGA color display (public access workstations).
- We install 5.25" and 3.5" floppy drives, but do not install hard disks for
- reasons of security. This configuration combines low cost with fairly good
- performance. Our options are also open for the future in terms of Windows,
- and we have flexibility in terms of memory management.
-
- In our installation, we also have a number of 80286/12 MHz-based diskless
- workstations. These machines have 2 meg of RAM installed, along with
- color VGA. The performance of these machines is quite good. Two factors
- would prevent us from adding '286s (regardless of low cost): The chip is
- at the very end of its life cycle; '386SX-based machines are almost as
- inexpensive.
-
- Arne J. Almquist
- Assistant to the Director, Networking and Microcomputer Resources
- University of N. Texas--Libraries
- P.O. Box 5188
- Denton, TX 76203-0188
-
- ph. 817/565-3024
- Bitnet: FB23@UNTVAX
-