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... The Grolier’s Electronic Encyclopedia
-The Oxford English Dictionary
WORM DISK:
-Optical laser disk are used by end user companies to store their own, propriety information.
-Once data have written to the medium, they can only be read, not update or changed.
MAGNETO-OPTICAL DISK (Recordable CD)
-New technology offers promise that optical laser disk will become commercially viable as a read-and-write like floppy disk storage technology.
-Can store up to 1000mb.
FIle Organization
Types of data and their storage in computer systems.
Details
| language |  | english |
| wordcount |  | 6508 (cca 18 pages) |
| contextual quality |  | N/A |
| language level |  | N/A |
| price |  | free |
| sources |  | 0 |
Table of contents
none
Preview of the essay: FIle Organization
FILE ORGANIZATION: The first computers in the 1950’s were mainframe. - Large, expensive, and reserved for a few select users - These monitors occupied entire buildings. These first computers were not designed for “On-line” response to a user’s command they used “batch Approach” Batch - Users submitted Coded cards containing data and program commands. - Computer professionals fed these cards into the computer and usually sent the printed results to the users the next day. - A miscoded Card usually meant that the user would have to resubmit the entire program the following day - At this time, there was little need to share computer resources (such as printers, and modems, storage disk). - Computers were so few (and so costly) that the average office could not afford one. - One solution to this expense problem was “time-sharing” - During the 1960’s- become possible for an office to use a “dumb” terminal, modem, and card header to connect with a mainframe computer through telephone line. - By leasing (or “sharing”) time on computer, they enjoy benefits of computer without massive expenditure. - The problem – with time-sharing, was how ...... The Grolier’s Electronic Encyclopedia
-The Oxford English Dictionary
WORM DISK:
-Optical laser disk are used by end user companies to store their own, propriety information.
-Once data have written to the medium, they can only be read, not update or changed.
MAGNETO-OPTICAL DISK (Recordable CD)
-New technology offers promise that optical laser disk will become commercially viable as a read-and-write like floppy disk storage technology.
-Can store up to 1000mb.
Essay is in categories
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Engineering
/Information Technologies
/Comments
Princess R.It is really good to know that there are essays like this which provides accurate and up-to-date info about computers.