Star Wars Advent Calendar Day #6

Finally one I recognise AND know the name of - Battle Droid.

Though developed earlier, battle droids served as frontline units in the Trade Federation Army and for the Confederacy of Independent Systems during the Clone Wars era. They were mass produced on Confederate planets such as Geonosis, and some units survived into the Galactic Civil War and Legacy era. Battle droids were originally made by Trade Federation Viceroy, Nute Gunray, to prevent pirate attacks. When he was contacted by Darth Sidious, he attacked the peaceful planet of Naboo. The droids easily overwhelmed Naboo's military and put the people in camps where many died.

Overview
The Battle droid's appearance is based on the skeleton of the Star Wars species Neimoidian.[1] Battle droids are designed to win through overwhelming numbers, even though a swarm of battle droids can be cut down by only a few Jedi Knights, as shown several times in the prequel films. Despite this, enough droids can take down many Jedi, as seen in the Episode 2 Geonosis arena battle.
Battle droids were originally portrayed as being controlled by a large central computer, usually located on a heavily defended starship. If the central computer is destroyed, all battle droids under its control would cease to function. This occurred during the Battle of Naboo in Star Wars Episode I: The Phantom Menace, when Anakin Skywalker destroyed the Droid Control Ship. The monumental defeat spurred interest in independent droids, and this technique was put into action following the defeat. To combat this, the Trade Federation programed a short list of commands for the droid to complete if their command system is destroyed.[2]
History
Star Wars Episode II: Attack of the Clones revealed that there were battle droid factories on the planet Geonosis and other Outer Rim Planets. As depicted in Star Wars Episode III: Revenge of the Sith, there are similar factories on the planets Mustafar and Mygeeto.
Super battle droids were bulkier, stronger and smarter versions of the droids, which were created for combat after the Battle of Naboo, and brought more firepower to the Jedi. In Revenge of the Sith, all battle droid units were ordered deactivated by Emperor Palpatine in order to create his empire. Many of the clones died during the wars and were replaced by Stormtroopers. Gizor Delso, a Geonosian Separatist who survived Darth Vader's slaughter, designed a third kind of battle droid during an uprising, but the plans were destroyed by Imperial stormtroopers.