The Nintendo DS or simply, DS, is a 32-bit dual-screen handheld game console developed and released by Nintendo. The device went on sale in North America on November 21, 2004. The DS, short for "Developers' System" or "Dual Screen", introduced distinctive new features to handheld gaming: two LCD screens working in tandem (the bottom one featuring a touchscreen), a built-in microphone, and support for wireless connectivity. Both screens are encompassed within a clamshell design similar to the Game Boy Advance SP. The Nintendo DS also features the ability for multiple DS consoles to directly interact with each other over Wi-Fi within a short range without the need to connect to an existing wireless network. Alternatively, they could interact online using the now-closed Nintendo Wi-Fi Connection service. Its main competitor was Sony's PlayStation Portable as part of the seventh generation era. It was likened to the Nintendo 64 from the 1990s, which led to several N64 ports such as "Super Mario 64 DS", "Diddy Kong Racing DS", among others. 

Prior to its release, the Nintendo DS was marketed as an experimental, "third pillar" in Nintendo's console lineup, meant to complement the Game Boy Advance and GameCube. However, backward compatibility with Game Boy Advance titles and strong sales ultimately established it as the successor to the Game Boy series. On March 2, 2006, Nintendo launched the Nintendo DS Lite, a slimmer and lighter redesign of the original Nintendo DS with brighter screens. On November 1, 2008, Nintendo released the Nintendo DSi, another redesign with several hardware improvements and new features. All Nintendo DS models combined have sold 154.02 million units, making it the best selling handheld game console to date, and the second best selling video game console of all time behind Sony's PlayStation 2. The Nintendo DS line was succeeded by the Nintendo 3DS family in 2011. QUESTIONS:

Q1:
1. How was the Nintendo DS marketed prior to its release?
2. Before it came out, what did ads characterize the Nintendo DS as?
3. 
Q2:
1. What series of game systems did the Nintendo DS replace?
2. What was the Nintendo DS the successor of?
3. 
Q3:
1. How can the Nintendo DS be described?
2. What sort of thing is the Nintendo DS?
3. 
Q4:
1. How many units have been sold of all models of the Nintendo DS?
2. What is the total number of Nintendo DSs sold, taking into accounts all models of it?
3. 
Q5:
1. When was the Nintendo DS's North American release?
2. On what date did the Nintendo DS come out in North America?
3. 
Q6:
1. What is the only game console to outsell the Nintendo DS?
2. What is the sole gaming console to have sole more units than the Nintendo DS?
3. 
Q7:
1. In what manner did the Nintendo DS connect to other DS consules as a manner of interacting?
2. Wha did the Nintendo DS do to interact with other DS consules?
3. 
Q8:
1. What novel features did the Nintendo DS Lite have?
2. What made the Nintendo DS Lite unique when it came out?
3. 
Q9:
1. What was the number of LED screens featured on the Nintendo DS?
2. How many LED screens was the Nintendo DS equipped with?
3. 
Q10:
1. What was the successor to the Nintendo DS?
2. What console came after the Nintendo DS?
3. 
Q11:
1. What redesign of the Nintendo DS was released in November 2008?
2. What remodeled version of the Nintendo DS came out in November 2008?
3. 
Q12:
1. What are some games from the Nintendo 64 that were ported to the Nintendo DS?
2. What are some examples of Nintendo 64 games that were put on the Nintendo DS?
3. 
Q13:
1. What older consule did the Nintendo DS have backwards compatibility with?
2. What previous gaming system was the Nintendo DS compatible with?
3. 
Q14:
1. What was the Nintendo DS mainly in competition with?
2. What consule was the primary competitor of the Nintendo DS?
3. 
Q15:
1. What does DS mean?
2. What is DS an acronym for?
3. 
