Benzene Derivatives in Organic Chemistry. Click to enlarge. Benzene is a hugely important compound in organic chemistry. It consists of six carbon atoms joined together in a ring, with a hydrogen atom bonded to each carbon; by replacing one or more of these hydrogens with a functional group, a large number of different compounds can be formed.
Â· just now. Report Abuse. system error memory dump files are created when yr computer encounters a error it cannot resolve so it dumps all the content in the RAM onto yr harddisk for you to debug it after it reboot But since you can't debug it is safe to delete. freebsd-unix.sg Â· 8 years ago.
(March 2013). Disk Cleanup (cleanmgr.exe) is a computer maintenance utility included in Microsoft Windows designed to free up disk space on a computer's hard drive. The utility first searches and analyzes the hard drive for files that are no longer of any use, and then removes the unnecessary files. There are a number of different file categories that Disk Cleanup targets when performing the initial disk analysis: 1  Compression of old files. 2  Temporary Internet files.