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A motherboard is the heart of a computer. It is the main printed circuit board present in the computers which holds the main electronic components of the system like the central processing unit and memory and also provides the connectors for other important peripherals. A motherboard is a large system in itself which contains a number of subsystems like the processor and other components. The basic function for which a motherboard is used in a computer is that it holds the important electronic components of the system including the memory and central processing unit and helps in establishing some sort of bridged connection between other internal components of the system.
AT Motherboard
An AT motherboard is a motherboard which has dimensions of the order of some hundred millimeters, big enough to be unable to fit in mini desktops. The dimensions of this motherboard make it difficult for the new drives to get installed. The concept of six pin plugs and sockets is used so as to work as the power connectors for this type of motherboards.
The hard to distinguish power connector sockets make it difficult for many users to easily make the proper connections and thus leading to the damage of the device.
Produced in the mid 80’s, this motherboard lasted a good span from the Pentium p5 to the times when Pentium 2 had been started to be used.

ATX Motherboard
Advanced technology extended, or popularly known as the ATX, are the motherboards which were produced by the Intel in mid 90’s as an improvement from the previously working motherboards such as AT.

This type of motherboards differ from their AT counterparts in the way that these motherboards allow the interchangeability of the connected parts. Moreover the dimensions of this motherboard are smaller than the AT motherboards and thus proper place for the drive bays is also allowed.

Some good changes were also made to the connector system of the board. The AT motherboards had a keyboard connector and on the back plates extra slots were provided for various add-ons.
LPX Motherboard
The low profile extension motherboards, better known as LPX motherboards, were
created after the AT boards in the 90’s.
AT Motherboard
An AT motherboard is a motherboard which has dimensions of the order of some hundred millimeters, big enough to be unable to fit in mini desktops. The dimensions of this motherboard make it difficult for the new drives to get installed. The concept of six pin plugs and sockets is used so as to work as the power connectors for this type of motherboards.

The hard to distinguish power connector sockets make it difficult for many users to easily make the proper connections and thus leading to the damage of the device.

Produced in the mid 80’s, this motherboard lasted a good span from the Pentium p5 to the times when Pentium 2 had been started to be used.

ATX Motherboard
Advanced technology extended, or popularly known as the ATX, are the motherboards which were produced by the Intel in mid 90’s as an improvement from the previously working motherboards such as AT.

This type of motherboards differ from their AT counterparts in the way that these motherboards allow the interchangeability of the connected parts. Moreover the dimensions of this motherboard are smaller than the AT motherboards and thus proper place for the drive bays is also allowed.

Some good changes were also made to the connector system of the board. The AT motherboards had a keyboard connector and on the back plates extra slots were provided for various add-ons.

LPX Motherboard
The low profile extension motherboards, better known as LPX motherboards, were
created after the AT boards in the 90’s.
Pico BTX Motherboard
Pico BTX is a motherboard form factor that is meant to manufacture even smaller size BTX standard. This is smaller than many current “micro” sized motherboards, hence the name “Pico” has been used. These motherboards share a common top half with the other sizes in the BTX line, but they support only one or two expansion slots, designed for half-height
or riser-card applications.
Mini ITX Motherboard

Mini-ITX is a 17 × 17 cm (6.7 × 6.7 in) low-power motherboard form factor. It was designed by VIA Technologies in year 2001. These are largely used in small form factor (SFF) computer systems. Mini-ITX boards can also be cooled easily because of their low power consumption architecture. Such an architecture makes them widely useful for home theater PC systems or systems where fan noise can diminish the quality or worth of cinema experience. The four mounting holes in a Mini-ITX board line up with the four holes in ATX specification