incompatibility

-
the structure of data storage files usually become embedded in the application programs that access them. In many situations, different programming languages may be used to structure the data, with the resulting files dependent on the particular language used to create them. An application programmer might thus be required to write programs that convert the files to some common format so that they can be processed. This is a time- consuming, expensive, and inefficient approach to processing data.

Popular posts from this blog

-
selection, iteration, sequence ubuntu-12043-desktop-amd64 VirtualBox-438-92456-Win http://medical-dictionary.thefreedictionary.com/Atomic+value http://en.wikipedia.org/wiki/Atomic_value http://www.docstoc.com/docs/26533470/EXAMPLE-FLIGHT-ITINERARY http://www.mulesoft.org/documentation/display/33X/Flight+Reservation+Example
Read more

ch11 review silberschatz operating systems concepts essentials 2nd ed

-
Review Questions Section 11.1 11.1 True or False? Disk blocks are made up of one or more sectors. True 11.2 What is the name of the standard Linux file system? Extended file system (ext3/ext4) 11.3 What is the UNIX term for a file control block? inode Section 11.2 11.4 True or False? UNIX treats a directory exactly the same as a file. True 11.5 What does the acronym VFS refer to? Virtual File system Section 11.3 11.6 What are the two general approaches for implementing a directory? Linear list list of file names with pointers to the data blocks, hash table linear list stores directory entries but a hash data structure is used greatly reducing directory search time Section 11.4 11.7 Provide at least two different approaches for allocating disk blocks to files. contiguous allocation, linked allocation, indexed allocation 11.8 True or False? The UNIX inode is an example of linked allocation. False the unix inode is an example of indexed allocation Section 11.5 11.9 What would the...
Read more