http://www.ck12.org Chapter 5. Energy
- A computer contains millions of tiny electronic components. Parts of a computer that transmit, process, or
store information include the CPU, hard drive, ROM, and RAM. The motherboard ties all these parts together.
Vocabulary
- electronic device: Device that uses electric current to encode, analyze, or transmit information.
Explore More
At the following URL, learn how a TV remote works. Then answer the questions below. http://electronics.howst
uffworks.com/inside-rc1.htm
- Which electronic components are found inside a TV remote?
a. diode
b. transistor
c. integrated circuit
d. all of the above - Which component of a TV remote detects when a key is pressed?
a. chip
b. diode
c. capacitor
d. resistor - The chip sends electronic signals that are amplified by the
a. diode.
b. battery.
c. transistor.
d. light emitter. - Signals in a TV remote are sent to the
a. LED.
b. chip.
c. circuit board.
d. conductive disks. - The function of the diode in a TV remote is to
a. make the signals stronger.
b. emit infrared light.
c. complete a specific connection.
d. sense infrared light.
Review
- What is an electronic device?
- Give three examples of electronic devices.
- Which part of a computer allows the CPU and RAM to communicate?