Science and Technology Quiz: Military & Telecommunications

B-CDMA (Broadband Code Division Multiple Access) is a digital cellular technology that allows multiple users to share the same frequency band by assigning unique codes to each transmission. The 'Broadband' prefix indicates it's designed for high-speed data transmission over wide bandwidth channels.

GRX (GPRS Roaming Exchange) is the infrastructure that enables mobile operators to exchange GPRS data traffic when subscribers roam internationally. It provides the necessary connectivity and interworking between different operators' GPRS networks, allowing data services to work seamlessly across borders.

The Motorola DynaTAC 8000X was the first commercially available mobile phone, released in 1983 after 10 years of development. It weighed 2.5 pounds, cost $3,995, offered 30 minutes of talk time, and took 10 hours to charge - making it a revolutionary but impractical device for its time.

WML (Wireless Markup Language) is an XML-based markup language designed specifically for mobile devices with limited display capabilities and processing power. It was used in WAP (Wireless Application Protocol) enabled phones to browse simplified web content before modern smartphones and HTML5 became dominant.

GSM networks use A5 series encryption algorithms to secure voice and data transmissions over the air interface. A5/1 is the most common (used in Europe and US), A5/2 is weaker (export version), A5/3 (KASUMI) is stronger for 3G, and A5/8 provides enhanced security for modern implementations.

Zittara is a submachine gun jointly developed by India's DRDO (Defense Research and Development Organization) and Israeli weapons manufacturers for Indian Special Forces. It's a compact weapon designed for close combat operations. INSAS 5.56 is an Indian assault rifle, INSAS LMG is a light machine gun, and FN FAL SLR is a battle rifle - none are submachine guns developed with Israel.

ABS stands for Anti-lock Braking System, a safety feature that prevents wheels from locking up during hard braking. It maintains steering control by allowing the driver to steer while braking. The system modulates brake pressure to each wheel to maximize stopping power.

F-INSAS (Future Infantry Soldier As a System) is India's equivalent to the US Land Warrior Program. It aims to modernize the infantry with state-of-the-art weaponry, communication systems, and surveillance capabilities. The program integrates multiple subsystems to create a networked soldier system.