we don't need to work physically. we don't need to leave bed to switch off lights fans etc.use only apps, WiFi, Bluetooth.

2. EC/11/121

3.  The technique of making an apparatus, a process,
or a system operate automatically.
 The creation and application of technology to
monitor and control the production and delivery of
products and services.

4. The fundamental components of a well-designed
room automation system include a computer (or
computers) with the appropriate programming, the
various devices and systems to be controlled,
interconnecting cables or wireless links, a high-speed
Internet connection, and an emergency backup power
source for the computer, its peripherals, and the
essential home systems.

5. HOW???

8.  The apps might not be supported in
back dated android.
 The internet connection must be
there.
 The WI-FI must be long range.
 When power off then it does not
work.

9. Future prospects
20 years down the lane all appliances will be
controlled without any physical effort..!!