Four Operating Systems Dominate the Use of Handheld Computers Including

question 48

Short Answer

Four operating systems dominate the use of handheld computers including Windows Mobile, iPhone, Symbian and ____________________.

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Definitions:

Electrophilic Aromatic Substitution

Electrophilic aromatic substitution is a type of organic reaction in which an electrophile replaces a hydrogen atom in an aromatic ring, forming a new substituent on the ring.

Deactivator

In organic chemistry, a substance that reduces the reactivity of a catalyst or chemical reactant, often by adsorption or by changing its chemical nature.

O,p-director

Substituents in aromatic chemistry that direct incoming substituents to the ortho and para positions on a benzene ring.

Electrophilic Iodination

A chemical reaction involving the addition of an iodine atom to a substrate, typically facilitated by an electrophile.