perception

n 1: the representation of what is perceived; basic component in

the formation of a concept [syn: {percept}, {perceptual

experience}]

2: a way of conceiving something; "Luther had a new perception

of the Bible"

3: the process of perceiving

4: knowledge gained by perceiving; "a man admired for the depth

of his perception"

5: becoming aware of something via the senses [syn: {sensing},

{perceiving}]

exception

An error condition that changes the normal {flow of control}

in a program. An exception may be generated ("raised") by

{hardware} or {software}. Hardware exceptions include

{reset}, {interrupt} or a signal from a {memory management

unit}. Exceptions may be generated by the {arithmetic logic

unit} or {floating-point unit} for numerical errors such as

divide by zero, {overflow} or {underflow} or {instruction

decoding} errors such as privileged, reserved, {trap} or

undefined instructions. Software exceptions are even more

varied and the term could be applied to any kind of error

checking which alters the normal behaviour of the program.

(1994-10-31)