Bandwidth comparisons Notes: Byte = 8 Bits K = Kilo = 2 raised to power 10 = 1,024 M = Mega = 2 raised to power 20 = 1,048,576 G = Giga = 2 raised to power 30 = 1,073,741,824 T = Tera = 2 raised to power 40 = 1,099,511,627,776 Acronyms Used: bps - bits per second Bps - Bytes per second Kbps - Kilobits per second KBps - Kilobytes per second Mbps - Megabits per second MBps - Megabytes per second irDA - Infrared Data Association ISDN - Integrated Services Digital Network USB - Universal Serial Bus SCSI: * SCSI - 5 MBps * Fast SCSI - 10 MBps * Fast Wide SCSI - 20 MBps * Ultra SCSI - 20 MBps * Wide Ultra SCSI - 40 MBps * Ultra2 SCSI - 40 MBps * SCSI-2 - 5 MBps * Fast SCSI-2 - 10 MBps * Wide SCSI-2 - 20 MBps * Fast Wide SCSI-2 - 40 MBps * Ultra2 SCSI - 40 MBps * Wide Ultra2 SCSI - 80 MBps * Ultra3 SCSI - 160 MBps * Wide Ultra3 SCSI - 160 MBps Ports: * Serial - 115 Kbps * Parallel - 920 Kbps * USB 1.0 - 1.2 to 12 Mbps * USB 1.1 - 1.5 to 12 Mbps * USB 2.0 - 480 Mbps Backwards compatible with 1.1 * FireWire (IEEE 1394) - 12 Mbps to 400 Mbps * Ethernet - 10-100 Mbps Wireless Technologies: * irDA - 115.2 Kbps to 4 Mbps * BlueTooth - 1 Mbps (range 10 meters) * Wi-Fi (802.11) - 802.11b - 1-11 Mbps - 802.11a - 54 Mbps - 802.11g - slower than a, faster than b, compatible with b - 802.11e - technology that makes existing 802.11 technology better * iMode - 9600 bps (384 Kbps anticipated with W-CDMA) * 1G - 9.6 to 14.4 Kbps * 2G - 9.6 to 14.4 Kbps * 2.5G - GPRS 117 Kbps, CDMA 144 Kbps * 3G - 144 Kbps to 2+ Mbps * 4G - 20+ Mbps (anticipated 2006-2010) Modem Speeds * 14.4 - 14.4 Kbps * 28.8 - 28.8 Kbps * 56k - 56 Kbps * ISDN - 64 Kbps (1 B-channel) or 128Kbps (2 B-channels) * DSL: 256 Kbps to 1.5 Mbps * Cable Modem: 1.5 to 3 Mbps * T1: 1.544Mbps * T2: 6.312Mbps * T3: 44.736Mbps * Satellite - 64 Kbps --------- Notes: PAN (personal area network): Bluetooth, IrDA LAN (local area network): 802.11b, HomeRF WAN (wide area network): CDPD, 2G, 2.5G, 3G, Metricom GAN (global area network): Teledesic, GlobalStar