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--- glossary:glossary_b [2021/08/08 04:03] – Corrected the link to Wikipedia Wayne
+++ glossary:glossary_b [2022/10/10 21:55] (current) – [Booster] add bootloader Bob Vetterlein
@@ Line 89: / Line 89: @@
 A Booster in DCC is a second power supply to increase the power available from the main master power supply. This may also have the facility for voltage inversion to allow for reverse loops etc but this is more cheaply handled by a specific reversing module. It can also help to reduce potential damage and problems by being used to divide the whole layout into separate sections each supplied by a booster so that shorts in one section do not affect another and the potential current is reduced to that available from one booster.
+===== BootLoader =====
+The majority of [[glossary:glossary_m#microprocessor|Microcontrollers]] available today have [[glossary:glossary_f#flash_memory|Flash Memory]] as their program storage. A **BootLoader** is a special section of program, stored in a protected area of memory, which can overwrite any area of memory except its own. By this means the [[glossary:glossary_p#pic|PICs]] used in the [[glossary:glossary_c#cbus|CBus system modules]] can have their firmware updated via the BootLoad facility of the [[glossary:glossary_f#fcu|FCU]]. The [[glossary:glossary_a#atc|ATC Automatic Train Controller]] has a similar arrangement but requires a Bootloading attachment.
 ===== Bps =====
@@ Line 121: / Line 124: @@
-    * Buses are used for connecting components of a computer: a common example is the PCI bus in PCs. See [[https://en.wikipedia.org/wiki/Bus_(computing)|computer bus.]]
+    * Buses are used for connecting components of a computer: a common example is the PCI bus in PCs. See [[wp>Bus_(computing)|computer bus.]]
-    * Buses are used for communicating between computers (often microprocessors). See [[https://en.wikipedia.org/wiki/Bus_(computing)|computer bus.]]
+    * Buses are used for communicating between computers (often microprocessors). See [[wp>Bus_(computing)|computer bus.]]
-    * Buses are used for distribution of electrical power to components of a system. The (usually) thick conductors used are called busbars. In an electrical laboratory, for example, a bare bus-bar will sometimes line the wall, to be used by the engineers and technicians for its high electrical current carrying capacity, which allows a convenient approximation to zero voltage, or ground in the US, and earth in the UK. See [[https://en.wikipedia.org/wiki/Busbar|BUSBAR]]\\
+    * Buses are used for distribution of electrical power to components of a system. The (usually) thick conductors used are called busbars. In an electrical laboratory, for example, a bare bus-bar will sometimes line the wall, to be used by the engineers and technicians for its high electrical current carrying capacity, which allows a convenient approximation to zero voltage, or ground in the US, and earth in the UK. See [[wp>Busbar|BUSBAR]]\\
 =====Byte=====
 The byte is a unit of digital information that most commonly consists of eight bits, representing a binary number. Historically, the byte was the number of bits used to encode a single character of text in a computer[1][2] and for this reason it is the smallest addressable unit of memory in many computer architectures. [[wp>Byte|Byte]]