The Bandwidth Guide

Maximum Dedicated Bandwidths

13.21 Gbps
 OC-255
10 Gbps
 OC-192
4.976 Gbps
 OC-96
2.488 Gbps
 OC-48, STS-48
1.866 Gbps
 OC-36
1.244 Gbps
 OC-24
933.12 Mbps
 OC-18
622.08 Mbps
 OC-12, STS-12
456.56 Mbps
 OC-9
155.52 Mbps
 OC-3, STS-3, Category 5 Cable, High- Speed ADSL  Downstream
100 Mbps
 CDDI, FDDI, Fash Ethernet
51.84 Mbps
 OC-1, STS-1
44.736 Mbps
 T-3, DS-3 North America
34.368 Mbps
 E-3 Europe
20 Mbps
 Category 4 Cable
16 Mbps
 Token Ring LANs
10 Mbps
 Thin Ethernet, Category 3 Cable, Cable  Modem
8.448 Mbps
 E-2 Europe
6.312 Mbps
 T-2, DS-2 North America
6.144 Mbps
 Standard ADSL downstream
3.152 Mbps
 DS-1c
2.048 Mbps
 E-1, DS-1 Europe
1.544 Mbps
 T-1, DS-1 North America
128 Kbps
 ISDN
64 Kbps
 DS-0, Pulse Code Modulation
56 Kbps
 56flex, US Robotics x2 Modems, V.90  Standard
33.6 Kbps
 56flex, x2 Modem Communications Rate
28.8 Kbps
 V.34, Rockwell V.Fast Class modems
20 Kbps
 Level 1 Cable, Minimum Cable Data  Speed
14.4 Kbps
 V.32bis Modem, V.17 Fax
9600 bps
 Modem Speed Circa 1980s
2400 bps
 Modem Speed Circa 1980s

Units Of Mesaurement

bit     = Smallest Unit Of Digital Information, i.e. Ones & Zeros
byte
 = A Set Of Bits
Bps
   = Bits Per Second
Kbps
 = Kilobits Per Second = 1000 Bits Per Second
Mbps
= Million Bits Per Second = 1,000,000 Bits Per Second
Gbps
 = Gigabits Per Second = 1,000,000,000 (One Billion) Bits Per Second
Tbps
 = Terabits Per Second = 1,000,000,000,000 (One Trillion) Bits Per Second

INFO TAKEN FROM THE DIRECTORY OF INTERNET SERVICE PROVIDERS