Technology – general knowledge

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Technology - general knowledge

Question 121 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The sampling rate, (how many samples per second are stored) for a CD is_?
A
48.4 kHz
B
22, 050 Hz
C
44.1 kHz
D
48 kHz
Question 122 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What was the active medium used in the first working laser ever constructed?
A
A diamond block
B
Helium-neon gas
C
A ruby rod
D
Carbon dioxide gas
Question 123 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Your computer has gradually slowed down. What's the most likely cause?
A
Overheating
B
Your processor chip is just getting old
C
Adware/spyware is infecting your PC
D
You dropped a sandwich in your computer
Question 124 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In which decade were the first successful diode and triode vacuum tubes invented?
A
1800s
B
1880s
C
1890s
D
1900s
Question 125 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is the best search tool for finding Web sites that have been handpicked and recommended by someone else?
A
Subject directories
B
Search engines
C
Meta-search engines
D
Discussion groups
There are 125 questions to complete.