Short for Backup Domain Controller. BDCs maintain a read-only backup of the PDC’s master directory. Although BDCs cannot be changed, they can be upgraded to PDCs and regularly synchronized with PDCs.
Windows 2000 (W2K) approaches the domain controller concept a little differently. Unlike Windows NT, where a PDC must be accessible to make changes to the directory, W2K relies on Active Directory’s multimaster replication model to update all domain controllers when only one is updated. There is no PDC or BDC. All domain controllers are equal.
Short for backward explicit congestion notification. A Frame Relay message that notifies the sending device that there is congestion in the network. A BECN bit is sent in the opposite direction in which the frame is traveling, toward its transmission source. Compare with FECN.
- BEDO DRAM
Short for Burst EDO DRAM, a new type of EDO DRAM that can process four memory addresses in one burst. Unlike SDRAM, however, BEDO DRAM can only stay synchronized with the CPU clock for short periods (bursts). Also, it can’t keep up with processors whose buses run faster than 66 MHz.
Short for bit error rate. In a digital transmission, BER is the percentage of bits with errors divided by the total number of bits that have been transmitted, received or processed over a given time period. The rate is typically expressed as 10 to the negative power. For example, four erroneous bits out of 100,000 […]
Acronym for best friends forever. BFF is commonly used in newsgroups, chat rooms, instant messaging, text messaging, SMS, e-mail and other real time text-based communications.
Short for ball grid array, a surface-mount integrated circuit package in which the die is attached to the printed circuit board with either plastic or ceramic solder balls instead of metal leads that are used in other packaging. BGA is similar to PGA packaging, but the pins are replaced with balls of solder to allow […]