Electronics and Computer Systems Engineering is responsible for a lot of the modern products (and gadgets!) which we take for granted.
Your iPod, car, washing machine, mobile phone, stereo, Xbox, TV, PC, to mention just a few, they all contain electronics and computer systems engineering systems.
So do the following: defence systems, irrigation controls for vineyards and process control systems for food and wine production, multimedia systems, including TV commercial production and movie animation, communication systems from wireless to satellite communications, medical equipment, safety and security systems , computer networks, robotics and the list goes on and on.
Electronics and Computer Systems Engineering is concerned mainly with the systems used for the transmission and processing of information of all kinds, from simple control circuits to complex ones like aircraft and ship control and navigation systems.