ISDN - Definition
ISDN is an abbreviation for Integrated Services Digital Network. It is a a high-speed communications network developed to provide all-digital service over the existing telephone network. ISDN was designed to carry not only voice but data, images, and video. ISDN is available in two forms, known as BRI (Basic Rate Interface) and PRI (Primary Rate Interface). BRI consists of two B (bearer) channels that carry data at 64 Kbps and one D (data) channel that carries control and signal information at 16 Kbps. In North America and Japan, PRI consists of 23 B channels and 1 D channel, all operating at 64 Kbps; all elsewhere, PRI consists of 30 B channels and 1 D channel.
Top Reasons To Wipe Away Your Internet History
- Information about all the web sites you have visited is stored on your computer!
- Every image you have ever viewed, sent or received over the Internet is stored on your system!
- There is a record of every program that you have ever downloaded or used on your hard drive!
- Pressing the delete button and emptying the recycle bin does NOT completely delete your files!
- Cleaning your History Files improves the speed of your computer and frees valuable disk space!
Return Back To Windows Glossary
Feel Free To Bookmark, Share Or Print This Page:  |
 |
