Ch. 1 - Ch. 4 Exam
A bit consists on a
0 or a 1
Bit Byte Hertz Megabyte terabyte
0 or a 1 8 binary digits machine cycles per second greater than a kilobyte, smaller than a gigabyte more than one trillion bytes
Eight binary digits is equal to ____.
1 byte
A megabyte hold approximately ____ bytes of data.
1,000,000
A kilobyte holds ____ bytes of data.
1,024
To accommodate HD format video, new monitors have an aspect ratio of____
16:9
The resolution of a monitor has to be at least ____ to play a Blu-ray movie
1920 x 1080
How many bits does it take to spell the word yes?
24
CD DVD Blu-ray hard drive flash drive
700 MB of data 4.7 GB of data 50 GB of data 8 TB of data 256 GB of data
One byte is equal to
8 bits of data
Which of the following statements about flash memory is FALSE?
A flash drive is needed to read a flash memory card.
Which of the following statements is FALSE?
A single bit can represent a single letter
Which of the following CANNOT be represented by a single byte?
A word such as Tom
Two of the most important factors to consider when choosing an LCD monitor are its resolution and _____
Aspect ratio
Which of the following optical storage devices holds the most high-definition video?
BD
Computers use ____ language to process data.
Binary
The representation of a fact, figure, or idea is called ____.
Data
Which of the following ports are used to connect a computer to a DSL or cable modem to a network?
Ethernet
Which of the following is NOT an optical storage device?
Flash Drive
Which of the following storage devices has the most capacity?
Flash memory
Which of the following ports do you need to use with a home theater system?
HDMI
____ have the largest storage capacity of any storage device inside the computer.
Hard drives
Data that have been organized are called ____.
Information
Which of the following statements about your computer's primary hard drives is FALSE?
Internal hard drives use a laser to read and write data.
Which of the following is the smallest unit of measure?
Megabyte
Which of the following is the largest unit of measure?
Petabyte
____ are the places that peripheral devices attach to a computer
Ports
The colors displayed by a LCD monitor are made by combing which of the following colors?
Red, blue, and green
Which of the following is NOT an example of data?
Report
What is the purpose of the function keys on a keyboard?
They are assigned a set of tasks by software programs
A kilobyte contains approximately one ___ bytes of data.
Thousand
Which of the following ports has the fastest data transfer rate?
USB 3.0
which of the following statements about wireless mice is TRUE?
Wireless mice use batteries and send data to the computer using radio frequency or Bluetooth technologies
Bits and bytes are used as the language that tells the computer what to do and also as
a method to represent the data and information that the computer inputs and outputs
With a liquid crystal display (LCD) monitor, what causes images to be displayed on the screen?
an electronic current passing through the liquid crystal solution and moving the crystals to either block the fluorescent light or let the light shine through
Bit is short for
binary digit
USB Ethernet DVI VGA HMI
commonly used for connecting input and output devices used to connect a computer to a network commonly used to connect projectors to a computer system commonly used to connect CRT monitors in older systems used for home theater systems
A monitor's ____ is a measure of the difference in light intensity between the brightest white and the darkest black colors
contrast ratio
A LCD's viewing angle is measure in ____.
degrees
A printer's resolution is measure in
dpi
You can increase the number of USB ports on your computer by adding a(n)
expansion hub
Which of the following types of keyboards are recommended when portability is important
flexible
Response time refers to the amount of time it takes ____
for a pixel to change color
The QWERTY keyboard
is the standard keyboard for most computers
on notebook computers, the mouse is built into the ____ in the form of a trackpoint or touchpad
keyboard
printer speed printer resolution inkjet printers all-in-one laser printers
measured in ppm measured in dpi affordable and produce photo-quality images combines a printer, scanner, copier, and fax into a single machine produce high-quality printouts
An LCD screen is composed of a fixed grid of _____.
pixels
Speed for printers is measured in ____.
ppm
Which of the following keyboard type would NOT be a primary consideration when portability is an issue
standard
A ____ is a device similar to a notebook PC but features a touch-sensitive screen that cans swivel and fold.
tablet PC
contrast ratio brightness viewing angle response time resolution
the difference in light intensity between the brightest white and the darkest black colors a monitor can produce measured as candelas per square meter tells how far you can move to the side, above, or below a monitor before the image quality degrade below acceptable levels how long it takes a pixel to change color number of pixels on a screen
which of the following statements about wireless keyboards is FALSE?
they cannot be used with notebook computers
Most notebook computers have a touch-sensitive screen at the base of the keyboard
touchpad
suggestions for replacing a keyboard do not include
touchpad
A(n) ____ mouse has a rollerball on the top or side of the mouse
trackball
which mouse type is listed below is best for your wrist>
trackball
Similar to a small joystick, a(n) ____ is used as an input device on some notebook computers.
trackpoint
when using a notebook, a(n) ____ is normally used to move the cursor
trackpoint or touchpad
wireless keyboards
use either radio frequency or Bluetooth technology to connect to the computer
