| We often hear the {{U}}(21)
{{/U}} "Bug" while using computers. But what is a bug? In computer science,
a bug {{U}}(22) {{/U}} an error in software or hardware. In software, a
bug is an error in coding or logic that causes a program to malfunction or to
{{U}}(23) {{/U}} incorrect results. Minor bugs, for example, a cursor
that does not behave as {{U}}(24) {{/U}} -can be inconvenient or
frustrating, but not damaging to {{U}}(25) {{/U}} More severe bugs can
cause a program to "hang" (stop responding to {{U}}(26) {{/U}} and might
{{U}}(27) {{/U}} the user with no {{U}}(28) {{/U}} but to
restart the program, losing whatever {{U}}(29) {{/U}} work had not been
saved. In {{U}}(30) {{/U}} case, the programmer must find and correct
the error by the {{U}}(31) {{/U}} known as debugging. Because of the
{{U}}(32) {{/U}} risk to important data, commercial aplication programs
are tested and {{U}}(33) {{/U}} as completely as possible before
release. Minor bugs found after the program becomes {{U}}(34) {{/U}} are
corrected in the next update; more {{U}}(35) {{/U}} bugs can sometimes
be fixed with special software, called patches, that circumvents or otherwise
{{U}}(36) {{/U}} its effects. In hardware, a bug is a recurring {{U}}(37) {{/U}} problem that prevents a system or set of {{U}}(38) {{/U}} from working together properly. The {{U}}(39) {{/U}} of the term reputedly goes back to the early days of computing, when a hardware problem in a computer at Harvard University was {{U}}(40) {{/U}} to a moth caught between the contacts of a relay in the machine. |