EXHIBIT 99.1 
  
  
                           CONTACTS:      Larry B. Schlenoff 
                                          Chief Financial Officer 
                                          Zitel Corporation 
                                          510-440-9600 
  
                                          Robert J. Luth 
                                          Chief Financial Officer 
                                          MatriDigm Corporation 
                                          408-360-3210 
  
                                          Marianne O'Connor 
                                          Sterling Communications, Inc. 
                                          408-441-4100 
                                          moc@sterling.com 
  
  
               ZITEL CORPORATION SIGNS DEFINITIVE MERGER AGREEMENT
                           WITH MATRIDIGM CORPORATION
  
                --NEW COMPANY TO BE NAMED MATRIDIGM CORPORATION--
  
 FREMONT and SAN JOSE, CALIFORNIA, October 6, 1998 -- Zitel Corporation

 (Nasadq:ZITL) ("Zitel") and MatriDigm Corporation ("MatriDigm") jointly

 announced today that they have signed a definitive merger agreement

 providing for a combination of the two companies.  Zitel currently owns

 approximately one-third of MatriDigm, a privately held company that

 provides Year 2000 solutions software and services. 


           The resulting combination of Zitel and MatriDigm will be a

 leading provider of software and services for information systems

 optimization.  Its primary businesses will include MatriDigm, a provider of

 highly automated factory solutions for the Year 2000 IBM COBOL code

 problem, and Datametrics, a provider of automated performance analysis and

 correlation software designed to solve computer performance problems. 


           The merger will be effected by combining the ownership of Zitel

 and MatriDigm into a new publicly traded Delaware corporation.  Following

 the consummation of the transaction, the current shareholders of Zitel and

 MatriDigm will own approximately 55.5% and 44.5%, respectively, of the new

 Company.  The merger will include a tax-free exchange of stock whereby

 existing Zitel shareholders will receive one share of the new Company for

 each share of Zitel common stock they currently own, and existing MatriDigm

 shareholders will receive approximately 0.65 share of the new Company for
 each MatriDigm share they currently own. The name of the new Company will

 be MatriDigm Corporation.  For accounting purposes, the transaction will be

 treated as a purchase. 


           The merger is subject to, among other things, Zitel and MatriDigm

 obtaining shareholders' approval of the transaction, as well as regulatory

 approval.  The financial advisers to Zitel and MatriDigm are Salomon Smith

 Barney Inc. and Robert E. LaBlanc Associates, Inc., respectively.  The

 transaction is expected to be completed early in calendar 1999. 


           Jack H. King, who is currently President and Chief Executive

 Officer of Zitel, will continue as President of Zitel, which will consist

 of the Datametrics business unit, and serve as a member of the new

 MatriDigm Corporation Board of Directors.  Richard W. Ormond, currently

 Chairman, President and Chief Executive Officer of MatriDigm, will serve as

 President, Chief Executive Officer and a Member of the Board of Directors

 of the new MatriDigm.  The Chairman of the Board will be nominated and

 elected following the closing of the transaction. 


           Mr. King said, "The new MatriDigm will be well-positioned in two

 promising segments of the technology marketplace: Y2K solutions and

 performance analysis and correlation software.  Our two companies are

 technologically and strategically an excellent fit.  In addition, Zitel

 shareholders will benefit from direct ownership and greater visibility of

 the MatriDigm business." 


           Mr. Ormond commented, "Zitel had the vision and foresight to

 invest in the formation of MatriDigm in 1996, and has supported our company

 as we evolved to provide a unique solution to the Y2K problem.  We believe

 the Y2K market is reaching a critical point and that this is the most

 appropriate time to bring these two companies together to capitalize on

 this opportunity.  As we look toward the future, our technological

 synergies will have important applications beyond the year 2000." 


           The agreement was unanimously approved by the Board of Directors

 of each company who were eligible to vote.  In connection with the

 execution of the merger agreement, certain shareholders of MatriDigm have
 entered into shareholder agreements with Zitel.  The shareholder agreements

 provide for, among other things, such shareholders' commitment to vote in

 favor of the MatriDigm merger and the approval and adoption of the merger

 agreement.   


           Zitel Corporation is an information technology company.  Its

 Datametrics subsidiary specializes in automated performance analysis and

 correlation software and its Year 2000 services include consulting, project

 management, planning, analysis, code conversion, code audit and testing. 

 Zitel is headquartered in Fremont, California.  For additional information

 about Zitel, including instructions on how to receive press releases via e-

 mail, visit the Company's web site at http://www.zitel.com.   


           MatriDigm Corporation is a software technology company

 specializing in the development of technologies and services that improve

 the understanding, maintenance, migration, modification, and testing of

 software applications.  MatriDigm currently offers products and services

 addressing the year 2000 problem for IBM COBOL code.  MatriDigm has

 received ITAA *2000 certification of its products and services.  For the

 nine months ended June 30, 1998, the company recorded revenues of $3.8

 million and an net loss of $10.8 million (unaudited).  For more information

 about MatriDigm's business, please visit the company's web site at

 www.matridigmusa.com or call the Company's Response Center toll free at 1-

 888-YRS-2001. 


           Investors are invited to participate in a teleconference call on

 Tuesday, October 6 with the management of Zitel and MatriDigm to discuss

 the transaction.  The call is scheduled to begin at 10:30 a.m. Eastern

 Daylight Time and can be accessed by dialing 1-888-790-1771.  The password

 is "Zitel."  Investors may listen to the conference call over the Internet

 through Vcall at http://www.vcall.com.  To listen to the live call, please

 go to the website at least 15 minutes early to register, download and

 install any necessary audio software.  A replay will also be available.  

           This press release contains projections and other forward-looking

 statements regarding future events or the future financial performance of

 the Zitel Corporation and MatriDigm Corporation.  These statements are only

 predictions and actual events or results may differ materially.  Refer to

 the documents Zitel Corporation files from time to time with the Securities

 and Exchange Commission.  These documents contain and identify important

 factors that could cause the actual results to differ materially from those

 contained in the projections or forward-looking statements in this press

 release.   















































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