Software Tools

Communications Applications

Refer to Lesson 2 - Technology, which examines the appropriate communications applications.

Packing Lessons

Packing lessons means the following:

• Lessons which include more than one file, which is often the case, may be packed into one file. This is practical when transferring on the net as is transferred in one go.

• Packing files usually implies compressing them as well. This reduces size by a factor of 10 or 20. This is important for modem users.

The DOS software PKZIP and PKUNZIP are very useful for these purposes. Both are available on the Internet. Using simple commands it is easy to pack the lesson files, as this example shows:

PKZIP leksj03.zip *.doc

This command packs all files with the doc extension in the directory into the ZIP file leksj03.zip.

Similarly the student will unpack the ZIP file using the command

PKUNZIP leksj03.zip

when this file has been transferred to his/her own PC.