Prospective Conversion: Data Transfer between Fossil and New Microcomputer Technologies in Libraries.

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Authors:	Vratny-Watts, Janet, Valauskas, Edward J.
Format:	Recurso educativo Open Access
Language:	en
Published:	1989
Subjects:	Case Studies Computer Software Computer Storage Devices Cost Effectiveness Database Management Systems Information Storage Library Automation Microcomputers
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

Microcomputers in Libraries: The Quiet Revolution.
by: Boss, Richard
Published: (1985)

Microcomputers for Libraries: Features, Descriptions, Evaluations.
by: Warden, William H., et al.
Published: (1983)

Personal Bibliographic Systems (PBS) for the PC: A Generic Survey of Features.
by: Schoonbaert, Dirk
Published: (1997)

Storage Technology: Present and Future.
by: Goldstein, Charles M.
Published: (1984)

The Invisible Drip...How Data Seeps Away in Various Ways.
by: Cribbs, Margaret A.
Published: (1987)

Negotiating Your Way through the Pitfalls of CD-ROM Installation; A Guide to Systems Requirements.
by: Jacso, Peter
Published: (1989)

InfoStation: A Low-Cost Electronic Document Storage, Retrieval, and Transmission System.
by: Hessier, David
Published: (1987)

Researching, Evaluating, and Choosing a Backup Service in the Cloud
by: Hastings, Robin
Published: (2012)

Software Choices for In-House Databases.
by: Tenopir, Carol, et al.
Published: (1988)

CD-ROM: An Introduction.
by: Duchesne, Roddy, et al.
Published: (1988)

Technology and the Online Catalog.
by: Graham, Peter S.
Published: (1983)

Why Use a Minicomputer? Some Factors Affecting Their Selection.
by: Wainwright, Jane
Published: (1975)

Microcomputers for Information Storage and Retrieval.
by: Kanters, Ben
Published: (1983)

Time Study of the Digitization of Images in a Microcomputer Environment.
by: Fontaine, Claudia
Published: (1987)

High Density Data Storage, the SONY Data DiscMan Electronic Book, and the Unfolding Multi-Media Revolution.
by: Kountz, John
Published: (1991)

Creating a Newspaper Index: Microcomputers to the Rescue!
by: Walker, Alice
Published: (1986)

Online Searching with a Microcomputer: Downloading Issues.
by: Tenopir, Carol
Published: (1985)

The Evolution of Spreadsheets.
by: Schuyler, Michael
Published: (1985)

The Microcomputer in the Library: II. Hardware and Operating Systems.
by: Leggate, Peter, et al.
Published: (1985)

MicroUse: The Database on Microcomputer Applications in Libraries and Information Centers.
by: Chen, Ching-chih, et al.
Published: (1984)

Microcomputers and the Library: A Planning Guide for Managers.
by: Walton, Robert A.
Published: (1982)

Squeeze and Search: Implementing Data Compression in Small Systems.
by: Grotophorst, Clyde W.
Published: (1988)

PCs and Education.
by: Mason, Robert M.
Published: (1986)

Configuring a Professional Microsystem for Information Processing.
by: Grosch, Audrey N.
Published: (1984)

Attention Novices: Friendly Intro to Shiny Disks.
by: Bardes, D'Ellen
Published: (1986)

Will Optical Discs Be the End of Online Networks?
by: Epstein, Susan Baerg, et al.
Published: (1987)

A Bibliography of Text Information Management Software for IBM Microcomputers and Compatibles.
by: Nieuwenhuysen, Paul
Published: (1990)

Word To Compute By: Keeping Up with Personal Computing Terminology.
by: Crawford, Walt
Published: (1997)

CD-ROMs for the Library.
by: Dodson, Carolyn
Published: (1987)

Old PCs: Upgrade or Abandon?
by: Perez, Ernest
Published: (1997)

Pastime--A System for File Compression.
by: Hultgren, Jan, et al.
Published: (1975)

You're in the Chips; or The Computer: What It Is and What It Can Do.
by: Matthews, Joseph R.
Published: (1981)

An Online Catalog for an Elementary School Library Media Center.
by: Costa, Betty
Published: (1982)

Constructing and Using an Apple IIe Computer AppleWorks Document Library.
by: Schlenker, Richard M.
Published: (1987)

Microcomputer Database Management Systems for Bibliographic Data.
by: Pollard, Richard
Published: (1986)

Serials and New Technology: The State of the "Electronic Journal."
by: Piternick, Anne B.
Published: (1989)

Using Microsoft Access: A How-To-Do-It Manual for Librarians. How-To-Do-It Manuals for Librarians, Number 76.
by: Butler, E. Sonny
Published: (1997)

Microcomputer Software for Indexing.
by: Hodgson, Elizabeth
Published: (1987)

Optical Disc Technology and the Cooperative Television Library.
by: Kranch, Douglas
Published: (1989)

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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