There are two types of central air conditioning systems: Direct Expansion (DX) type of central air condition plants and Chilled Water type of the central air conditioning plants. This article describes the DX central air conditioning system.
Ghostscript is a suite of software based on an interpreter for Adobe Systems' PostScript and Portable Document Format (PDF) page description languages. Its main purposes are the rasterization or rendering of such page description language files, for the display or printing of document pages, and the conversion between PostScript and PDF files.
Antispam A type of application that defends against the threats that spam poses (such as viruses, phishing attempts, and denial-of-service attacks) and reduces the amount of spam entering an email system. Antivirus software A type of software that scans a computer's memory and disk drives for viruses. If it finds a virus, the application informs the user and may clean, delete, or quarantine any files, directories, or disks affected by the virus. The term antimalware is preferred because it covers more threats.