The L293D is a dual H-bridge driver which able to control two DC motors in forward and backward direction.

The ULN2003A is a seven channel Darlington (NPN) array which able to control seven output.

Matrix IO Converter is used to convert each I/O pin to different I/O pins 

External LCD Port is used to allow user to extend the 2x16 & 4x20 LCD Display.

External LCD Port is used to allow user to extend the 128x64 Graphic LCD Display.

8x Servo & ADC Port is used to extend the normal IO port to 8x Servo Motor and Analog Sensor ports.

The iCM22 is a high frequency switching DC−DC Step-Down Regulator with 2.5A output

This Mini-B USB Port can be used to communicate the PC with PIC by using USB method. 

This PS/2 Port is a 6-pin Mini-DIN connector and used for connecting the PS/2 keyboard and mouse to a PIC.

1x12 IO Port is used to extend the 2x6 IO port to 1x12 IO pins for the breadboard connection.

1x11 IO Port is used to extend the 2x6 IO port to 1x11 IO pins for the breadboard and iBoard Tiny series connection.

1x9 IO Port is used to extend the 2x6 IO port to 1x9 IO pins for the breadboard and iBoard Tiny series connection.