| The popular computer saying "Garbage In, | | | | send the correct sales code. The clerk does not |
| Garbage Out" is more true today then when the | | | | have to know the code, just which key to press |
| words where first uttered. Large parts of a | | | | and that is labeled and color coded. |
| program are dedicated to trying to keep the | | | | Pressing the wrong key when controlling other |
| garbage from being entering into a program. One | | | | equipment can be reduced. By programming |
| example is the spell checker included with all types | | | | individual keys to send long complicated control |
| of programs. | | | | sequences the sequence is sent quickly and in the |
| Some other garbage examples are: | | | | proper order. |
| 1. Entering incorrect sales codes | | | | Hitting the wrong key when play a game |
| 2. Pressing the wrong key when controlling other | | | | becomes passé. Not only is the correct |
| equipment | | | | sequence sent but the speed with which it is sent |
| 3. Hitting the wrong key when playing a game | | | | can be controlled. Each key stroke can be sent |
| 4. Mistyping complicated words or phrases | | | | much faster then even the best game player can |
| 5. Forgetting the correct sequence when entering | | | | attain. |
| data | | | | Mistyping complicated words and phrases |
| An overlay keyboard can help eliminate many of | | | | becomes a thing of the past with an overlay |
| these errors. Each key on an overlay keyboard | | | | keyboard. A perfect example is in medical |
| can be programmed to send any sequence of | | | | transcription. When long medical phrases and |
| characters, digits and functions available on a | | | | terms can be programmed into the keys on an |
| standard computer keyboard. A graphic overlay is | | | | overlay keyboard error rates quickly decrease. |
| created to label what command each key | | | | Forgetting the correct sequence when entering |
| reproduces. | | | | data is impossible when an overlay keyboard is |
| Entering incorrect sales codes can be eliminated | | | | used. Each key will always send the sequence in |
| by configuring each key to the sales code for an | | | | the same order every time it is pressed. The |
| item. The overlay keyboard will remember the | | | | overlay keyboard never forgets the sequence of |
| sales codes. The key for chewing gum will always | | | | the order. |