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Module-2-Components-of-the-Computer-System-Unit
Component Systems Module
Schedule:
After deadline.Ended 09/01/2013 11:59 PM EDT
Started:08/30/2013 9:45 PM EDT
Submitted:08/30/2013 10:26 PM EDT
Score:100%
Points:100 out of 100
Question 1
Points: 10 out of 10
What is a system unit?
a circuit board to which many electronic components are attached
a component of the processor that directs and coordinates most computer operations
a device that interprets and carries out the basic instructions used to operate the computer
a case containing the electronic components of the computer used to process data
Feedback
Correct. The system unit consists of the case and the internal components used to process data into information.
Question 2
Points: 10 out of 10
What are the two main components of the central processing unit (CPU)?
the memory chips and memory slots
the control unit and arithmetic logic unit
the chip and the system clock
the expansion slots and motherboard
Feedback
Correct. The control units retrieves instructions and returns results to memory. The arithmetic logic unit processes data into information.
Question 3
Points: 10 out of 10
RAM is a form of
non-volatile memory
volatile memory
Feedback
Correct. The data stored in RAM is lost when the computer is turned off.
Question 4
Points: 10 out of 10
The function of the system clock is to:
speed up retrieval of data from the hard drive
control the timing of all computer operations.
display the date and time.
control the refresh rate of the monitor
Feedback
Correct. The system clock works with the CPU to regulate the speed at which data is retrieved and processed within the CPU.
Question 5
Points: 10 out of 10
Which component controls the timing of all computer operations?
the system clock
the ALU
the memory modules
the CPU
Feedback
Correct. The system clock is the quartz crystal circuit that controls the timing of computer operations.
Question 6
Points: 10 out of 10
What is the purpose of a port?
Ports are used to interpret and coordinate all signals in the computer.
Ports are used to join a cable to a peripheral.
Ports provide high-speed storage locations for sensitive data.
Ports provide memory locations for video and audio files.
Feedback
Correct. Ports are on the outside of the computer case. Cables and cords are plugged into ports. Peripherals such as USB devices are connected to the computer through ports.
Question 7
Points: 10 out of 10
The , sometimes called the system board, is the main circuit board of the system unit.
Feedback
Correct. The term “motherboard” is used to reference the primary circuit board in the computer, much in the way “motherlode” and “mothership” refer to primary components in those contexts. Other circuit boards that attach to the motherboard are sometimes called “daughterboards.”
Question 8
Points: 10 out of 10
Which of the following is true?
Nonvolatile memory is temporary.
The contents of nonvolatile memory are lost when the computer’s power is turned off.
The contents of volatile memory are lost when the computer’s power is turned off.
Volatile memory is permanent.
Feedback
Correct. “Volatile” means changeable, and volatile memory is erased when the power is turned off.
Question 9
Points: 10 out of 10
An external component such as a mouse, monitor, or printer is called a
Feedback
Correct. A peripheral is an external component that attaches to the system unit via cables, cords, or USB-type connectors.
Question 10
Points: 10 out of 10
If you often play the latest computer games on your PC, which of the following would you consider the most critical components of the PC?
the weight and size of your PC
sophisticated graphics and sound adapter cards
processor speed and amount of RAM
A and B
B and C
Feedback
Correct. In order to fully enjoy video games, appropriate graphics and sound cards are needed along with adequate speed and RAM for processing.
Close
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