Lexmark 2 Tri-colour & 3 Black Ink Cartridges - Twin Pack, Black

Black - A colour which does not emit any colour of the spectrum. Black absorbs all frequencies of the spectrum.

Ink - A liquid containing pigments and dyes

Lexmark - An American manufacturer of printing and imaging equipment. Formed in 1991

Colour - The categorised spectrum of light visable to humans

Resistant - Something that can repel against something.

Twin - A pair of people or animals that are born at the same time.

PC World is one of the biggest and most well-known computer retailers in the market. Founded in 1991 the company now trade under the brand name of Currys PC World, since their recent merger. The brand now have over 160 stores throughout the UK selling a range of computers, entertainment and electrical items. PC World sells some of the best brands in the market such as Sony, Lenovo, Samsung, Hewlett Packard and most recently Dell. They also stock a range of accessories such as printers, hard drives, monitors and computer peripherals. Their entertainment section features televisions, DVD players, home stereo systems and accessories. They have also launched their 'Know How' desks in many stores. This allows customer with software or hardware faults to being in their products to be repaired by fully qualified engineers.