Who are the two major manufacturers of processors?

In recent decades, astronomers discovered stars even cooler than the traditional spectral type M stars. Astronomers gave these cool stars a new spectral type, L. If you wanted to go out and find more such type L stars, what kind of instrument would it be smart to use? 

When testing your theory, you discover that you are wrong. ​ What is your next step in the troubleshooting process?

The standard bulbs (standard candles) that made it possible for astronomers to discover the acceleration in the expansion of the universe were 

In Python, what is the closest concept to pointers that allows the reference and manipulation of objects indirectly?

Which of the following must be performed prior to creating a spanned, striped, or mirrored volume on unallocated space in Windows?

Molly, an end user, connects an external monitor, external keyboard and mouse, and a wired network cable to her laptop while working in the office. She leaves the office frequently to meet with customers and takes the laptop with her. Disconnecting and reconnecting these external connections has become inconvenient.   Which of the following devices will allow the user to disconnect and reconnect the laptop to the external connections with the least amount of effort? (Select TWO).

Question: What is the output of the following code?   class MyClass:     def __init__(self, value):         self.value = value obj = MyClass(10) obj = MyClass(0) print(obj.value)

Which operator cannot be overloaded in C++?

The figure below shows the H-R diagram of a star cluster. How old is it? (The dashed line is the position of the stars. The solid line is the main sequence.) You can estimate the life of a main-sequence star by using t = 1010 M/L years (M and L in solar units).