National Instruments DAQPad-6508, Руководство пользователя

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© National Instruments Corporation G-3 DAQPad-6507/6508 User Manual
Glossary
B
b bit—one binary digit, either 0 or 1
B byte—eight related bits of data, an eight-bit binary number. Also used to
denote the amount of memory required to store one byte of data.
bandwidth the range of frequencies present in a signal, or the range of frequencies to
which a measuring device can respond
base address a memory address that serves as the starting address for programmable
registers. All other addresses are located by adding to the base address.
baud rate serial communications data transmission rate expressed in bits per second
(b/s)
BCD binary-coded decimal
binary a number system with a base of 2
BIOS basic input/output system or built-in operating system
bipolar a signal range that includes both positive and negative values (for example,
–5 V to +5 V)
BIRQ0 PPI B interrupt request bit for Port A
BIRQ1 PPI B interrupt request bit for Port B
BNC a type of coaxial signal connector
BPA bidirectional data lines for Port A of PPI B
BPB bidirectional data lines for Port B of PPI B
BPC bidirectional data lines for Port C of PPI B
break-before-make a type of switching contact that is completely disengaged from one terminal
before it connects with another terminal
breakdown voltage the voltage high enough to cause breakdown of optical isolation,
semiconductors, or dielectric materials. See also working voltage.
buffer temporary storage for acquired or generated data (software)