Answer:
Transistors are comparatively cheaper and consume less power as compared to vacuum tubes.
Explanation:
Transistor when compared to vacuum tubes perform much faster processing, are small and lightweight which enables it to integrate them into circuits.
They also show a high amplification factor than vacuum tubes.
Trash bin
Reasons:
When you remove a file from the hard drive it is still written in binary code. So, windows places files in the *trash bin* if you did not want to delete it.
Unless USB or Removable flash drive, when you delete that it does not place any files in the trash bin.
Click the Launchpad icon in the Dock, or pinch closed with your thumb and three fingers on your trackpad. Then click an app to open it. You can also type an app's name to find the app in Launchpad, then press the Return key to open it.