[d:Calculations]    [s:c][m:numbers]
[d:Display text]    [s:d][m:print]
[d:File system]     [s:f][m:filer]
[d:Games]           [s:g][m:games]
[d:Information]     [s:i][m:information]
[d:Mail]            [s:m][m:mail]
[d:Network]         [s:n][m:network]
[d:Programming]     [s:p][m:program]
[d:Reminder service][s:r][m:remind]
[d:Searching, Pattern Matching]       [s:s][m:pattern]
[d:Security]        [s:S][m:security]
[d:Terminal handler][s:t][m:terminal]
[d:Writing aids]    [s:w][m:write]
