Test out
How many AC volts of electricity could you be shocked with if you don't unplug a computer before opening it and touching the internal parts?
120 volts AC
How many symbols are used in the Hexadecimal number system? Correct Answer:
16
How many pins can a motherboard's main power connector accept? (Select two.)
20, 24
How many pins can a CPU power port accept? (Select two.)
4, 8
How much information can an eight-bit parallel bus send at a time? I
A byte
What do you connect to a NAS? Correct Answer:
A network
Which of the following BEST describes a decimal number system?
A number system that uses ten symbols.
What is the easiest way to speed up a computer?
Add more RAM
What type of electrical current comes from a wall socket?
Alternating
What do you call the area located on the back of a desktop computer that houses many different ports?
Back Plane
Which storage technology is becoming obsolete because of streaming services and cloud storage?
CD-ROM
Which of the following best describes a parallel computer bus? (Select two.)
Can have many wires working together to send or receive information., Width depends on how many wires it has
What does the power supply do for the computer?
Converts AC current to DC
Which of the following is an input device?
Digital camera
Which of the following input devices can use a FireWire cable to connect to a computer? (Select two.)
Digital camera, scanner
Which of the following was originally designed to replace the VGA and DVI standards?
DisplayPort
What does DDR stand for? Correct Answer:
Double Data Rate
What is the term used to describe the shape and size of a motherboard? Correct Answer:
Form Factor
What is the processor called that is used on video cards?
GPU
What is the RAM capacity measurement for modern memory sticks?
Gigabytes
Which connection port is available on many different devices, like Smart TV's, game consoles, and home theater systems?
HDMI
Where does the CPU store the information when you start a program?
In random access memory
Which of the following are the main manufacturers for home and laptop computer CPUs? (Select two.)
Intel, AMD
Which of the following are disadvantages of using a laser printer? (Select two.)
It is more expensive to purchase., It is more difficult to maintain. it is more difficult to maintain
Which of the following BEST describes an Inkjet printer?
It is relatively inexpensive to purchase.
Which of the following BEST describes a laser printer?
It uses electrical charges.
Which of the following is a disadvantage of using an Inkjet printer?
Its replacement cartridges are expensive.
Which of the following flat screen technologies allow for the screen to curve?
LED
Which of the devices listed are designed to input information to a computer? (Select two.)
Microphone, Camera
Why should you unplug the AC power before working inside a computer? Correct Answer:
Modern computers are never really off
What do you call a processor with multiple processors built into it?
Multicore
Which of the following helps us express small numbers? (Select three.) Correct Answer:
Nano, Mili, Pico
What is the step after the computer processes information?
Output information
Which motherboard slot works exclusively with video cards?
PCI Express x16
Which of the following words BEST describes a device that is connected to a computer's external port?
Peripheral device
What does an LCD screen use to create an image?
Polarized filters separated by liquid crystals.
Which of the following output devices can use a FireWire cable to connect to a computer?
Printer
Which of the listed devices output information from a computer? (Select two.)
Printer, monitor
Which of the following are considered internal devices? (Select three.)
Processor, RAM, Sound card
Which storage device requires power to retain information?
RAM
What does RAM stand for?
Random access memory
What are the most important characteristics to consider when purchasing a motherboard? (Select two.)
The CPU it supports, The RAM type it supports
What part of the human body is like a computer's CPU? Correct Answer:
The brain
What should you touch to remove static electricity from your skin when working with a computer?
The computer's metal power supply.
Which of the following BEST describes a Hertz?
The measurement of how many times a repeating process happens per second.
What is the main reason that everything must connect to the motherboard?
To send information to the CPU
Which input device lets you interact with a computer by using one of your fingers, multiple fingers, or a stylus? Correct Answer:
Touchscreen
How do you become a go-to user?
Understand how a computer really works.
Which of the following has become the long-term storage location of choice?
cloud
Which of the following is an output device?
monitor
