Chapter 2 -- Part 1 – Check Your Understanding (50 Points)
Multiple Choice – Circle the most correct answer
1.
Which of the items below represents a megabyte.
a.
one million bytes
b.
one trillion bytes
c.
one trillion bits
d.
one billion bits
2.
The type of computer that you might find in your automobile is
a.
a mainframe computer.
b.
an embedded computer.
c.
a supercomputer.
d.
none of the above.
3.
Which of the following is not an input device?
a.
a laser printer
b.
a keyboard
c.
a touch-screen monitor
d.
an optical mouse
4.
Which is TRUE about supercomputers?
a.
They are specially designed computing devices that reside in other devices.
b.
They perform complex calculations rapidly.
c.
They support hundreds of users simultaneously.
d.
They execute many programs at the same time.
5.
Which is NOT important to consider when buying a monitor?
a.
screen resolution
b.
aspect ratio
c.
viewing angle
d.
color depth
6.
Data and information are NOT interchangeable terms.
a.
True
b.
False
7.
Inkjet printers are considered legacy technology.
a.
True
b.
False
Chapter 2 -- Part 2 – Check Your Understanding (50 Points)
Multiple Choice – Circle the most correct answer
1.
2.
Which port enables your computer to communicate with networks and other computers?
a.
USB
b.
connectivity
c.
DVI
d.
VGA
To add ports to your computer, what do you need?
a.
an expansion hub
b.
a digital media card reader
c.
an external hard drive
d.
a flash memory card
3.
Which of these are NOT located on the motherboard?
a.
hard drive
b.
CPU
c.
ROM
d.
RAM
4.
Which of these is NOT an optical storage device?
a.
flash drive
b.
Blu-ray drive
c.
DVD drive
d.
CD drive
5.
Ergonomics is an important consideration
a.
only for laptop computers.
b.
for all computing devices.
c.
only for desktop computers.
d.
only for laptop and desktop computers, but never for mobile devices.
6.
The hard drive is an example of a volatile storage device.
a.
True
b.
False
7.
The processor speed of the CPU is not the only measure of a processor’s expected performance.
a.
b.
True
False
Chapter 2 --Sound Byte – Binary Numbers Interactive (50 Points)
Multiple Choice – Circle the most correct answer
b
1.
.
An 8-bit binary digit can be interpreted by the computer as all of the following EXCEPT
__________.
a. a character
b. a number
c. a sound
d. an entire file
2. What types of data are stored in computers as binary numbers?
a. Only numbers
b. Only numbers and letters
c. All alphanumeric characters
d. All data
3. Binary numbers are based on a series of __________.
a. decimals
b. two digits
c. bytes
d. bases
4. The digit to the far right in any base system always has a place value of __________.
a. 0
b. 10
c. 5
d. 1
5. Each __________ of binary can be represented with a single digit of hexadecimal.
a. bit
b. two digits
c. four digits
d. eight digits
6. What is the value of the third column from the right in base 16?
a. 1
b. 16
c. 256
d. 161
7. What is the binary representation of the number 15?
a. 1111
b. 1101
c. 0111
d. 0101
8. When referring to RGB, each of the three colors can have values ranging from __________.
a. 0 to 100
b. 00 to FF
c. 1 to 16
d. 0 to 255
9. When referring to the colors displayed on a computer monitor, what results when the Red, Green,
and Blue values are all set to 0?
a. The color is transparent.
b. The color is black.
c. The decimal and hexadecimal values are different.
d. The color is white.
10. Referring to the demonstration in the Sound Byte, what happens when you dump the 102 bucket
ten times?
a. The decimal number is 1,000.
b. The example cannot display the results.
c. The bucket is empty.
d. It stops after nine times.
Chapter 2 -- Sound Byte -- Healthy Computing (50 Points)
Multiple Choice – Circle the mot correct answer
1. Which of the following is NOT a healthy computing habit?
e. The monitor should be an arm’s length away from your eyes.
f. The seat should not cause pressure at the back of your knees.
g. The mouse should be at about the same level as the keyboard.
h. The keyboard should be placed on a shelf above the desktop.
2. An ideal chair for the workplace does all of the following EXCEPT __________.
a. include lumbar support that fits into the curve of your lower back
b. allow your feet to be flat on the ground
c. support your legs without applying pressure to the back of your knees
d. allow legs to make contact with the sides of the chair
3. Incorrect placement of your keyboard can cause __________.
a. migraine headaches
b. stress fractures
c. tendonitis
d. lower back pain
4. To reduce wrist strain, use a __________.
a. wireless keyboard
b. wireless mouse
c. wrist rest
d. wired keyboard
5. ________ is the science of fitting the workspace to the worker.
a. MSD
b. Aeronautics
c. Ergonomics
d. ISP
6. Which of the following is NOT a preventative measure for computer vision syndrome?
a. Placing the monitor off-center
b. Avoiding glare on the screen
c. Placing the monitor at the correct height
d. Placing the monitor at the correct distance
7. What steps should you take to prevent eye strain while staring at the monitor?
a. Focus on one spot on the screen for long periods of time
b. Use low lighting
c. Blink your eyes frequently
d. Look away from the screen at least once an hour
8. Which of the following is NOT a symptom of eye strain?
a. Sore or burning eyes
b. Blurred or double vision
c. Spots floating in front of your eyes
d. Difficulty in shifting focus between monitor and source documents
9. Which two objects should be at about the same height?
a. The monitor and the keyboard.
b. The keyboard and the printer.
c. The monitor and the mouse.
d. The keyboard and the mouse.
10. The keyboard should be positioned so your forearms are ________.
a. angled down slightly while you are typing
b. parallel to the floor while you are typing
c. angled upward slightly while you are typing
d. resting on the keyboard