In computing, an emulator is hardware or software that enables one computer system (called the host) to behave like another computer system (called the guest). An emulator typically enables the host system to run software or use peripheral devices designed for the guest system.
i.e. and e.g. are abbreviations of Latin phrases and each has its own specific meaning. i.e. stands for id est, meaning that is.. It is used to explain what exactly something means, or to say the same thing in other words. It is an abbreviation (Latin) of id est. Meaning that is.
An acronym (pronounced AK-ruh-nihm, from Greek acro-in the sense of extreme or tip and onyma or name) is an abbreviation of several words in such a way that the abbreviation itself forms a pronounceable word.The word may already exist or it can be a new word. An acronym is an abbreviation that forms a word. 2  An initialism is an abbreviation that uses the first letter of each word in the phrase (thus, some but not all initialisms are acronyms).