Announces First Full-Featured, Integrated Data Compression for MS-DOS 6.0

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Stacker Note                                                  Stacker Note



STAC FAX Index # 1104



  Anounces First Full-Featured, Integrated Data Compression for MS-DOS 6.0


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CARLSBAD, Calif., March 30, 1993 - Stac Electronics (NASDAQ:STAC), 


the leading supplier of high performance data compression, today announced 


Stacker®  3.1 for Windows & DOS The latest version of Stacs award-winning 


compression software achieves new levels of safety and ease of use by taking 


advantage of special operating system features available for the first  time 


in Microsoft's new MS-DOS® 6.0.  


Stacker 3.1 replaces DoubleSpace, and seamlessly integrates the Stacker LZS  


compression into the MS-DOS 6.0 operating system.  Unlike DoubleSpace, which 


is based on data compression technology which Microsoft licensed from 


Vertisoft Sytems, Stacker 3.1 is also fully compatible with earlier versions 


of MS-DOS. With MS-DOS 6.0, Stacker 3.1 drivers are pre-loaded, no longer 


requiring the Stacker commands in the CONFIG.SYS file.  This eliminates any 


risk of accidental deletion by the user.  With Stacker 3.1, all DOS commands 


work directly on Stacker drives, without modification:  For example, the DIR 


and CHKDSK commands can be used directly on Stacker drives.


"The fully integrated Stacker 3.1 removes the one advantage that DoubleSpace 


had over Stacker 3.0," said Gary Clow, founder and CEO of Stac Electronics.  


Stacker 3.1 for Windows and DOS, based on the patented Stacker LZS technology 


relied upon daily by more than four million users worldwide, is the latest 


addition to the Stacker family of data compression products for the DOS, 


Windows, Macintosh® and OS/2® environments. Stacker was the first data 


compression product to satisfy all requirements users consistently demand 


in data compression software:


  o  Speed:   Must work in real time, compressing and decompressing files 

      on-the-fly.


  o  Space:   Must double the computer system’s storage capacity.


  o  Support: Must be compatible with all hardware systems and peripherals. 

      Must be compatible with all applications and utilities.  

      Must be compatible with all versions of Windows and DOS.


  o  Safety:  Must preserve the integrity of all data. 

      Must be able to recover data in the case of system failure.


When used in conjunction with DOS 6.0, Stacker 3.1 achieves the same level 


of integration into the operating system as DoubleSpace, Microsofts 


first-generation compression product.  In addition to its superior 


compression and performance over DoubleSpace,  Stacker 3.1 also 

provides the additional Windows functionality and disk optimization 


features that have made its predecessor, Stacker 3.0 for Windows and 

DOS, the No. 1 selling utility, according to PC/Computing, 

April, 1993 - surpassing even Windows 3.1 and DOS 5.0.  These features, 

which evolved over three generations of product development in response 

to user needs, include:


  o The Windows Stackometer :  Graphical gauges that allow Windows users to 

    monitor disk capacity, compression ratio and fragmentation levels 

    continuously, in real time. DOS users are provided similar tools for 

    monitoring these critical parameters.


  o Flexible Setup:  Facilitates easy installation of Stacker 3.1 from either 

    Windows or DOS. Express Setup allows automatic installation with a few 

    keystrokes or mouse-clicks; Custom Setup allows users to tailor Stacker 

    for optimal system performance.

  

  o Compression Tuning:  Allows users to optimize their systems for speed or 

    compression ratio.  Users of fast machines may opt for maximum 

    compression, while those with slower machines might opt for maximum 

    speed, which trades off some compression efficiency for faster performance.


  o Stacker Anywhere :  Allows users to read and write to Stacker floppies, 

    Bernoulli disks, Syquest cartridges, Flopticals or any removable media 

    on any PC, even one where Stacker is not installed. With Stacker 

    Automount, Stacker removables are immediately available for use.


  o Two-gigabyte drives:  Supports Stacker drives up to 1 gigabyte in size, 

    yielding 2-gigabyte Stacker drives.


  o Stacker Optimizer :  Defragments data quickly and offers a visual 

    representation of the defragmentation process.  A quick defragmentation 

    option speeds the process even further.  Or, users can choose a full 

    defragmentation, achieving the highest compression available.


  o Unstack:  Automatically returns a Stacker disk system to its original 

    state.

  

  o Stacker AutoProtect :  Detects disk errors dynamically and at boot time 

    and immediately protects your Stacker volume.


  o Stacker AutoRecovery:  Automatically repairs errors on the disk.


  o Stacker Security :  Password-protects Stacker drives for read-only or 

    read/write access.


  o Stacker Preview :  Allows users to see how much disk space they can 

    gain by installing Stacker.


Price and Availability Stacker 3.1 for Windows and DOS will be available 


within 30 to 60 days of the release of  MS-DOS 6.0.  Stacker will be 


available through retail channels at the suggested retail price of $149.  


An upgrade for all registered users of Stacker 3.0 for Windows and DOS will 


be available in the same tiime frame, directly from Stac for $19.95 plus the 


cost of shipping and handling.  


Stacker 3.0 units sold after March 30, 1993, will qualify for a free upgrade 


with proof of purchase.


The Company


Stac Electronics is the leading supplier of high performance data compression 


products for personal computers.  Implemented in software and silicon, 


Stacs products are sold direct from the company and through retail and 


OEM sales distribution channels worldwide.






















________________________________________________________________________

Copyright 1993, Stac Electronics


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