CrashCourse Computer Science: Integrated Circuits and Photolithography

What was the main focus of the first six episodes of CrashCourse Computer Science?

• Hardware advancements

• Software development

• Networking

• Artificial Intelligence

What was the main drawback of using vacuum tubes in early computers?

• They consumed too little power

• They were unreliable and large

• They were too cheap

• They were too fast

What was the significant improvement of transistors over vacuum tubes?

• Transistors consumed more power

• Transistors were more reliable and smaller

• Transistors were larger

• Transistors were slower

Who is credited with making Integrated Circuits practical by using silicon?

• Gordon Moore

• Alan Turing

• Robert Noyce

• Jack Kilby

What is the primary advantage of using Integrated Circuits (ICs) over discrete components?

• ICs are larger

• ICs are more complex to manufacture

• ICs are less reliable

• ICs reduce the number of individual components and wires

What innovation allowed engineers to connect components without using many wires?

• Vacuum tubes

• Transistors

• Printed Circuit Boards (PCBs)

• Mechanical switches

What is the first step in the photolithography process?

• Etching the silicon

• Applying a photoresist

• Adding a thin oxide layer

• Doping the silicon

What is the purpose of doping in the photolithography process?

• To clean the silicon wafer

• To change the electrical properties of silicon

• To remove the oxide layer

• To apply a photoresist

What is Moore's Law?

• A trend that the number of transistors on an IC doubles approximately every two years

• A rule that IC prices double every year

• A principle that the size of ICs doubles every year

• A law that states the speed of computers doubles every year

What was the significance of the Intel 4004 CPU?

• It was the largest CPU ever made

• It was the first processor shipped as an IC

• It was the first computer

• It was the first CPU to use vacuum tubes