Buses Study Guide Exam.

Bus Architecture - correct answer An expansion bus used to connect peripheral devices Transistors and Connectors - correct answer Computers transmit data using electrical signals and process and store it using these components Bus - correct answer An electrical pathway on the motherboard or through cabling that carries signals and carries power to components Traces - correct answer Tiny wires running between components that are used to physically implement a bus Data - correct answer Information that is being carried by the bus and processed by the computer Address - correct answer Information about where the data is located in memory Timing signals - correct answer Synchronizes data transfers between components Internal Bus or Local Bus - correct answer This connects core components such as the CPU, memory and the system controllers External bus or Expansion Bus - correct answer Allows additional components such as peripheral devices (outside the case) and adapter cards (inside the case) to be connected to the computer using cabling. USB, SCSI, FireWire. PCI Express - correct answer The distinction between internal and external bus types are becoming more clear thanks to Bus technology such as this that will be used to before both types of roles System clock - correct answer Synchronizes the operation of all parts of the PC and provides the timing signal for the CPU Megahertz (MHz) of Gigahertz (GHz) - correct answer Used to measure clock speeds Clock generator - correct answer Sets up a timing signal for the system clock Clock multipliers - correct answer Take timing signals provided by the generator and apply a multiplication factor to produce different timing signals for different types of bus. This means that one bus can work at a different speed or frequency than another type of bus Single Ended Signaling - correct answer Used by older computer bus types such as PS/2 ports or VGA display ports Differential signaling - correct answer Used by newer bus types such as USB, FireWire or PCI express. This allows the use of lower voltages, reducing power consumption and heat Parallel - correct answer Multiple physical wires to carry the signals Serial - correct answer Transfer one bit at a time but working at a higher frequency Digital - correct answer Used by computers, pulses in the electrical signal refer to discrete binary values (1's and 0's) Analog - correct answer Continuous variable signal. Just like natural sound waves. For some types of communication, a computer needs to translate between digital and analog signals External bus technologies - correct answer Do not always extend outside the computer. For example, PCI (the most popular expansion bus) provides connections to internal adapter cards only Multi-bus design - correct answer Used to support older technologies. Computers can support more than one expansion bus