effect of a typical checksum function the unix cksum utility a checksum is a small size datum from a block of digital data for the purpose of detecting errors which may have been introduced during its transmission or storage it is usually applied to an installation file after it is received from the download server
Ketone, a source of energy in heart, brain. Ketones are produced in the body when fats, rather than glucose, are used to produce energy. This substance is an acid which can be harmful to the body if ketones are allowed to accumulate.
Most cells, including the brain cells, are able to use ketones for at least part of their energy. But there is one type of ketone molecule, called acetone, that cannot be used and is excreted as waste, mostly in the urine and breath (sometimes causing a distinct breath odor).