computer dictionary

auxiliary and vector.

Words 

auxiliary = assistant,help,helper,supporter.
vector    = a one dimensional array.

source: http://www.thefreedictionary.com

Application 

Vector graphics is the use of geometrical primitives such as points,
lines, curves, and shapes or polygon(s), which are all based on mat
hematical equations, to represent images in computer graphics.Vector
graphics formats are complementary to raster graphics, which is the
representation of images as an array of pixels, as it is typically used for
the representation of photographic images.[1] There are instances when
working with vector tools and formats is the best practice, and instances
when working with raster tools and formats is the best practice. There are
times when both formats come together. An understanding of the adv
antages and limitations of each technology and the relationship between
them is most likely to result in efficient and effective use of tools.

source : http://en.wikipedia.org/wiki/Vector_graphics

define bus, topology

Bus
An electronic pathway. In networks, a configuration (topology) with a single linear cable, terminated at each end, to which computers and devices are connected. There are no loops or branches in the cable. Also called a daisy chain.

Topology.
The arrangement in which the nodes of a LAN are connected to each other.

Cuckoo.
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