Transcript Chapter 2: Force & Newton`s Laws

Chapter 3: Electronics &
Computers
Where are the instructions to
start a computer stored?
 ROM
The volume of a radio travels as
what type of signal?
 Analog
What are semiconductors?
 Semiconductors have high electrical
conductivity. They are better conductors
of nonmetals, and they are worse
conductors than metals.
Where are the instructions that
tell a computer what to do?
 In the memory of the computer
What number system is used by
a computer to store information?
 Binary (2 numbers: 1 and 0)
Why are flash drives more useful
than the hard disk of a computer?
 Flash drives are portable, and a hard
disk of a computer is not.
What are some examples of
software?
 Word processing programs
 Games
 PDF reader
 iTunes
What is hacking?
 Hacking is illegally gaining access to a
computer system.
What is our number system?
 Base 10
What is a p-type semiconductor?
 One that can accept electrons.
Which signal has continuous,
smooth values?
 Analog
Name the device that acts as a
switch in our computers.
 Transistor
What are Java and C++?
 They are programming languages.
What kind of device is a computer
(electrical or electronic)?
 Electronic
Labs
 Go over each of our labs and make a
connection from that lab to the concept
we were learning in class.
Short Answer
 Compare and contrast RAM and ROM.
Short Answer
 What is a diode?
 Tell why it conducts current in only one
direction.
Short Answer
 Know electrical devices.
 Know electronic devices.
 Know examples of both.
Short Answer
 Compare and contrast Analog and
Digital signals.
 Give examples of each.
Short Answer
 Know input devices.
 Know output devices.
 Know one that can be both.
Short Answer
 Explain why the transistor is such an
important device.
Short Answer
 What is a computer network?
 How do we use the computer network?