Tamerlan Tsarnaev had a brother.
The 60-series NORbit is a very early form -LRB- 1960s -RRB- of digital logic developed by Philips that uses modules containing discrete components to build logic building blocks .. digital logic. Digital electronics. Philips. Philips. There are three basic types contained in a large -LRB- one by two inch -RRB- 17 pins dual in-line package , with nine pins on one side and eight pins on the other side .. dual in-line package. dual in-line package. There were different logic functions available and each function was recognizable by the color of its plastic container , black , blue , red or green .. The most important block contained A NOR port -LRB- hence the name -RRB- , but there were also blocks containing drivers , and a timer circuit which resembled the later 555 timer IC .. 555 timer IC. 555 timer IC