Phase X Systems Inc, Beaverton, Oregon, has cut the price of its CA Series of colour and monochrome X terminals and added local Motif window managers. The line comprises a 15CA1 15 colour model, costs $1,500; a 17CA1 17 colour model, $1,800; a 20CA2 20 colour model that costs $2,600; and a 19CA1 19 monochrome […]
Phase X Systems Inc, Beaverton, Oregon, has cut the price of its CA Series of colour and monochrome X terminals and added local Motif window managers. The line comprises a 15CA1 15 colour model, costs $1,500; a 17CA1 17 colour model, $1,800; a 20CA2 20 colour model that costs $2,600; and a 19CA1 19 monochrome model, at $1,400. They all sport an Am29000 RISC chip, plus a 64MHz ASIC as a graphics accelerator, and support Sun Microsystems Inc, Hewlett-Packard Co, IBM Corp, Digital Equipment Corp, and Santa Cruz Operation Inc Unix servers. The X terminals are rated at 65,000 XStones, and are targeted at such applications as transaction processing, finance, manufacturing, and two-dimensional computer-aided design. Phase X also sells the CE Series of X terminals, a family based on a MIPS Technologies Inc 33MHz LR33020 processor from LSI Logic Corp, which it launched jointly with Samsung Electronics Co at Unix Expo in September.users to be able share files, and interoperability, such as it exists, allows Distributed Computing Environment users to run Network File System clients, and DFS file names to be exported so that they are visible to Network File System systems via a DFS exporter. Network File System clients can access data from DFS data from Unix or DFS file systems. As both mechanisms work according to the constraints of Network File System, that may pose some problems because of Network File System’s lack of security provisions, say Kumar and Transarc chief executive Alfred Spector. In addition there’s no mechanism for users to share directory services under the two environments as yet.
By William Fellows
However, it is understood that at least one vendor is building a value-added gateway for Distributed File System that will provide some common naming space of DFS to Network File System, which could be made available to Network File System clients. Sun will enhance Network File System as a matter of course in any case, they observe. Both Kumar and Spector agree that it is unlikely that a Remote Procedure Call created in one environment could ever be picked up under both the Distributed Computing Environment and Open Network Computing. Spector says there are some Distributed Computing Environment RPC features simply not expressible in the Open Network Computing Remote Procedure Call and that therefore no-one should expect to see any kind of Remote Procedure Call translator either: there’s been no customer requirement in any case, he says. Looking at political and technical issues facing the Common Open Software Environment’s distributed computing effort, the problem is that Sun can’t roll over to Distributed Computing Environment like it did to Motif, says Kumar. Meanwhile, all COSE firms, bar Sun, have plumped for Distributed Computing Environment as their chosen distributed environment, as has X/Open Co Ltd. Kumar maintains the Open Software Foundation has a good working relationship with Sun, and is confident that it made the right technical choices in its original Distributed Computing Environment decision. Sun’s Open Network Computing will be picked up by the X/Open and Software Foundation federated naming service project, which will be compatible with Sun’s Open Network Computing NIS+ naming convention. A prototype will be built soon, according to Kumar.
Although Distributed Computing Environment services have been available for some time – IBM Corp has offered a Distributed Computing Environment implementation under AIX for a year now the Distributed File System element has only been available since the end of last year, when Transarc brought its system to market. Meanwhile, Transarc began shipping its Distributed File System implementation for Solaris last week, and says it has now has some 200-odd customers using its Distributed Computing Environment technologies. Digital Equipment Corp and Hewlett-Packard Co will soon ship their implementations of Transarc’s DFS supplied by the Foundation as part of Distributed Computing Environment, with NCR Corp and Siemens Nixdorf Informationssy
steme AG expected to follow suit. Transarc says it is waiting to announce a large Distributed Computing Environment-on-Sun deployment currently under wraps.