LAN is short for Local Area Network which describe a group of computers, associated devices and also peripherals in limited area that are interconnected into a network.
KBps is short for Kilobytes per second. It is a measurement of data flow.
Kbps is short for Kilobits per second. It is a measurement of data flow.
KB is short for Kilobyte (1024 bytes).
Kb is short for Kilobit (1024 bits).
Icon is a representation of a file or of an application or a peripheral device and so on as a graphic or symbol in a graphical user interface (GUI).
IC, short for Integrated Circuit is actually a chip or most accurate a microchip because this electronic component contains thousands of miniaturized components in it, transistors, capacitors, resistors. One microchip replace large circuit boards and in this way it is possible to design more efficient everything and compact and still containing the functionality of thousands of components.