All file systems supported by Windows use the concept of files and directories to access data stored on a disk or device. Windows developers working with the Windows APIs for file and device I/O should understand the various rules, conventions, and limitations of names for files and directories.
Both Key and Allen say the typical yard they deal with is about a quarter-acre in size and the sprinkler systems cost about $2,500 to $3,500 to install. Allen says the cost to install sprinklers on half-acre lawns runs $3,500 to $5,500, and one-acre properties cost $6,000 to $8,000.
Cost of installing sprinklers declines. According to a recent NFPA research report, fire sprinkler costs have dropped in recent years. âIn 2008, the average cost we found was $1.61 per square foot of installed sprinklers,â Carli says. âIn 2013, the average is $1.35.â She credits mandates, which means more contractors are installing fire sprinklers in those areas, with the price drop.