XT Computer: The computers which have 8086 microprocessor or 8088 microprocessor are called as XT computer. XT Computer has processing speed of 4.77 MHZ
AT Computer: The computer which have 80286 microprocessors are called as AT computer. These are faster that XT computers.
PS/2 Computers: IBM Company started manufacturing next model of computers in 1990. This model is called as PS/2 (Personal System-2) model computers. Most of the computers manufactured after 1990, including laptop computers belong to this model.
AT Computer: The computer which have 80286 microprocessors are called as AT computer. These are faster that XT computers.
PS/2 Computers: IBM Company started manufacturing next model of computers in 1990. This model is called as PS/2 (Personal System-2) model computers. Most of the computers manufactured after 1990, including laptop computers belong to this model.
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