A binary digit is referred to as a ________.
bit
Which of the following numbering systems is ordinarily used by people?
Decimal
Hexadecimal represents numbers using which base?
16
In the RGB system, when all three component colors are set to zero, what is the result?
The resulting color is black.
How many colors are used in the RGB system?
3
A single hexadecimal number is represented by ________ digits in the binary numbering system.
4
Which of the following is the largest storage space?
Hard drive
Which of the following is a portable storage device?
Flash drive
Which of the following is NOT a main component of the motherboard?
DVD
Where does the computer store instructions and data that are needed frequently by the CPU?
Cache memory
Where are the instructions stored that the computer needs when it starts up?
ROM
What card translates binary data into images on a monitor?
Video
Which of the following is sealed in a case so no dust gets inside?
Hard drive
What cards are added to the computer to control certain functions, such as sound and video?
Expansion
Which statement about ports is FALSE?
All ports operate at the same speed.
Which of the following is a wireless protocol for connecting devices to your computer?
Bluetooth
Which of the following data ports is the most popular?
USB
Which type of port connects a computer to a local wired network?
Ethernet
Which of the following is true about Bluetooth?
Devices using Bluetooth must be no more than 30 feet apart.
Currently, which type of port has the fastest data transfer speed?
USB 3.0
Which type of port can be used to connect a TV to your computer?
HDMI
Which of the following devices does NOT use a sound card to connect to a computer?
iPad
Which of the following is/are caused by the mismatch between movement and muscle capacity?
Musculoskeletal disorders
Where should your feet be in the perfect ergonomic setup?
Flat on the floor
Where should your forearms be positioned when you are using the keyboard?
Parallel to the ground
What is the science of fitting the workspace to the worker?
Ergonomics
Which is NOT a requirement for an ideal chair for the workplace?
Tilting seat back
Which of the following is NOT true about the correct placement of a keyboard?
You should place it at least four inches above your lap.
You should place your mouse ________ the keyboard.
level with
What causes computer vision syndrome?
Improper placement of the monitor
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