Off-Line Internet: A Timesaver For Slow WWW-Sessions
G. Valet1, M. Valet1, J.P. Robinson2, 1Max-Planck-Institut für Biochemie, D-82152 Martinsried, Germany, 2Flow Cytometry Lab., Purdue Univ., West Lafayette, IN 47907, USA
Overloaded networks delay www-sessions very significantly, especially with backward jumps within the network requiring frequently multiple data transfers for reloading the screen information. Other network services like the FTP (file transfer protocol) access as "anonymous" user permit an unattended file transfer from multiple sites according to a command list (WS_FTP, AUTONET in:pcv4.biochem.mpg.de/pub/ftp). If www-text (.HTML) and image files (.GIF) were available on FTP sites (dto:: /pub/cytorely), the question arises, whether downloaded files can be displayed from harddisk (400-700Kbyte/sec) by the off-line "Open File" (OF) option of Netscape and Mosaic network browsers. This would be substantially faster than on-line loading (0-5Kbyte/sec) via the URL (uniform resource locator) cell. Mosaic and Netscape display indeed text and image files with fully conserved jumping possibilities upon OF loading. While Netscape requires the presence of an active network, Mosaic operates in the absence of a network after acknowledgment of error messages by mouse clicks. Off-Line Internet is therefore not only a timesaver but permits in addition the use of network browsers for CD-ROM replay of www-net or other educational or scientific documents.