Mastering Intranet and Internet Technology
Data Search and Retrieval
All data on the Internet is kept in a file somewhere. To access or retrieve that data we may take a copy of a file in full or use some management program to retrieve and send us the information required.
Databases
Text or Graphical?
File Names
File Types
Moving Files
Databases
Gopher (and Veronica)
Archie
WAIS
Text or Graphical?
Traditionally data was stored in text based systems
Latest systems store graphics, and audio and video clips.
File Names
Unix - 24/256 characters, case sensitive, no spaces.
Macintosh - 27 characters, not case sensitive, spaces allowed.
DOS/Windows - 8.3 characters, not case sensitive, no spaces.
OS/2 HPFS - 254 characters, not case sensitive, no spaces, 64 KB attribute.
Windows 95 - 256 characters, not case sensitive, spaces allowed.
Windows NT - 256 characters, some case sensitivity, spaces allowed.
File Types
See
Some Common File Extensions
in the Appendix.
Moving Files
FTP
NFS
Method
Search, THEN
Retrieve
Other Clients
Gopher
WWW
Last Update: 25/11/98
Web Author: Geoff May
Copyright © 1997, 1998 by Network Business Services Pty Ltd.
All Rights Reserved.
