| A | B |
|---|
| bus | a parallel collection of conductors that carry data or control signals from one unit to another |
| data bus | a bidirectional pathway linking the cpu to the memory and i/o devices |
| address bus | a pathway that carries data generated by the cpu to the various memory and i/o elements of the computer |
| pc bus | the bus architectures used in thee first ibm pc's originally on 8-bit bus expanded to a 16-bit bus |
| isa | the 8- and 16-bit original connectors in PC's they run at a bus speed of 8mhz |
| eisa | Extended industry standard architecture 16-bit psa was extended to 32bits and they called it EISA |
| pci | a high-performance 32/64-bit bus |
| Plug and Play (PnP) | a standard that was supposed to make adding peripherals to your computer as easy as plugging them in and using them |
| Bandwidth | A measure, in some amount of bits per second, of the amount of data that can be sent over a particular cable, interface of bus |
| bus master | Any class of microprocessor unit with the ability of being able to take control of a system of busses of a computer |
| bus speed | a measurement, usually in mhz, of how many times data can be sent through the bus per second |
| expansion slot | refers to any type of slot in a computer that you can plug an expansion card into |
| Legacy | describes older computer systems, software, or hardware |
| Fire-Wire | high speed serial bus, allows for connection up to 63 devices primaraly used for digital video |
| Jumper | a jumper fits on 2 metal connectors. it provides an electical connection between the 2 wires the enable semi-perminent hardware configuration |
| Adapter | hardware that must communicate with the host system in an ordinary and established way |
| dma | direct memory access. the ability of certain inteligent, high speed i/o devices to perform data transfer themselves, with the help of the dma controller |
| i/o address | after the addapter had used an interupt to signal the processor that needs attention |
| agp | used to speed up video data, includes 32-bit wide channel running at 66mhz dirrect to memory to increase speed and throughput |
| interrupt | signals the system processor that the adapter card, system hardware, or application software needs attention |
