CH6 Flashcards
In which environment would a desktop computer be safest and operate the best?
A. Inside a small, tightly sealed cabinet
B. In a clean room with powerful air conditioner running
C. On the balcony at a tropical beachfront condo
D. On a TV tray in a living room
B. In a clean room with a powerful air conditioner running.
How far should a user’s face be from a monitor screen for most comfortable viewing?
16 to 24 Inches
Which of these is the flow of Static Electricity?
A. EMI
B. ESD
C. AC
D. DC
B. ESD
What device can help correct power sags?
A. Power Supply
B. Power Strip
C. Surge Suppressor
D. UPS
D. UPS
What kind of cable is most often used to connect a PC to a Broadband Modem or Router?
Ethernet/RJ-45
What should you install before you download and install additional software on a New PC?
A. Security Software
B. Nothing
C. Updates to Other Apps
D. Drivers for Hardware Devices
A. Security Software
What component protects against occasional electrical spikes?
Surge Suppressor
Where in Windows can you access the configuration settings for hardware devices like mice and printers?
Control Panel
Where in the Control Panel can you remove unwanted applications?
A. Programs
B. Ergonomics
C. Setup
D. Start Menu
A. Programs
Which of these is a Type of Windows User Account?
A. Kid
B. Standard
C. Supervisor
D. Normal
B. Standard
Ergonomics?
Products marked as Ergonomic is designed to place less stress on the body during use than a product not marked as such. Good ergonomic design and positioning of equipment can enable people to use equipment extensively with no adverse effects on the body. Bad ergonomics can cause eyestrain, neck and shoulder problems, backaches, and tendon problems such as carpal tunnel syndrome.
Keyboard tilt for users?
Keyboard should either be flat or tilted toward the user at a 25-Degree Angle.
Distance between floor and the keyboard should be?
23 and 28 Inches, or whatever height is necessary for the user’s forearms to be perpendicular to the floor while typing.
Chair Position?
Distance between the floor and seat should be 16 to 19 inches, or whatever height is necessary so that the user’s thighs are parallel, and calves are perpendicular to the floor when sitting upright with fleet flat on the floor.
Acronym: ESD/EMI?
ESD = Electrostatic Discharge - Happens when objects with different electrical charges come close enough for the excess charge to jump quickly to equalize the charge between them.
EMI = Electromagnetic Interference - Occurs when a cable runs too close to something that generates a strong electromagnetic field. EMI is not permanently damaging, but it can garble the data flowing through the cable and having to retransmit reduces performance.