You can't, but you have choice not to eat it. Just like people have a choice not to eat fast food or junk food.
Cisco is currently selling the Unified Communications and offering cash for old PBX systems.
Supermarkets have computer systems for receiving payments during checkout, recording sales and keeping customer information.
Yes
A toxin is a substance that is toxic or poisonous. That is, it has a harmful effect on body systems or organs.
PCBs have serious poisons which have been shown to cause damage to the reproductive, neurological and immune systems of wildlife and humans and are known to cause cancer so yes they are poisonous.
One can find information on clocking systems at Time Clock Window. This website is selling a software for time-keeping as well. Also they're selling the software for 60 dollars.
Stars and any associated solar systems, dust, some gases and (potentially) dark matter.
According to 'Wikipedia" the following are the best selling games systems of this year; Pacman and Pitfall for Atari 2600, ColecoVision games, and Microsoft Xbox Halo2, Halo Combat evolved to name a few.
Many steel tanks are used for potable water systems if protected properly
The client and those in the clients environment who are potentially influential in contributing to a resolution of the client problems
It is thought that chocolate can be poisonous to mice, but only in large amounts. Chocolate is poisonous to most all animals when consumed in large amounts.
The top selling stereo systems for 2011 were Kenwood, Visio, LG and Sony. A cheap brand that had high sells volume was Emerson. Bose sells a really good stereo system/speaker set for cars and home entertainment.