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49
the same. Why on earth these have not been altered, considering the widespread
criticism is anyone's guess.
Those of you who were expecting an advance in reliability in multi-tasking will
also have to console yourselves. Has this aspect been improved on in Windows 98? I
could detect nothing in the literature or in operation to suggest this.
Better reliability?
Claims for better reliability in Windows 98 do not centre on improved multi-
tasking but on testing and automatic error-fixing the hard disk system files and
configuration. Here there has been a significant improvement with Registry Checker
and System File Checker. Windows 98 can check itself on loading with Registry
Checker and c orrec t its elf from a set of bac kup files that it holds.
System File Checker as the name implies, checks Windows system files for
corruption and can restore them from the CD or from a backup set.
The most likely cause of trouble is badly-written third-party programs
interfering with the system files. This used to be a problem with Windows 95.
However, with both registry and system file checkers, if the system is so corrupt it
w on’t load.
TEXT 3
Read the text and give it a title. Answer the following questions:
1. Where is UNIX used now?
2. What are the advantages of the system?
Despite the lack of unification, the number of UNIX systems continues to grow.
As of the mid 1990s, UNIX runs on an estimated five million computers throughout
the world. Versions of UNIX ran on nearly every computer in existence, from small
IBМ PCs to large supercomputers such as Crays. Because it is so easily adapted to
new kinds of computers, UNIX is the operating system of choice for many of today's
high-performance microprocessors. Because a set of versions of the operating
system's source code is readily available to educational institutions, UNIX has also
become the operating system of choice for educational computing at many
universities and colleges. It is also popular in the research community because
computer scientists like the ability to modify the tools they use to suit their own
needs.
UNIX has become popular too, in the business community. In large part this
popularity is because of the increasing numbers of people who have studied
computing using a UNIX system, and who have sought to use UNIX in their business
applications. Users who become familiar with UNIX tend to become very attached to
the openness and flexibility of the system. The client-server model of computing has
also become quite popular in bus iness environments, and UNIX systems support this
paradigm well (and there have not been too many other choices).
Unix vendors and users are the leaders of the «open systems» movement:
without UNIX the very concept of open systems would probably not exist.
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