Understanding Computers Autumn Y9 Flashcards
(20 cards)
Name the best optical storage device for storing music?
CD
Name the best optical storage device for storing films?
DVD
On a CD Pits and Lands represent what for the computer ? 1 or 0 ?
0
The change from ‘pit to land’ or ‘land to pit’ is represented by a 1 or 0 ?
1
A CD has one long track which begins at the centre of the disk and work outwards in a tight spiral? TRUE or FALSE
True
There are __ bits in a byte.
8
How many bits are in a Nibble?
4
What is the binary string represented by the attached diagram?
/\____/\
11000011
What is the denary value of the attached diagram?
/\____/\
195
What is the binary string represented by the attached diagram?
/-_/-\
10100101
What is the denary value of the attached diagram?
/-_/-\
165
______________________means making connections and links with other people and computers
Connectivity
Creativity and Design
is getting at what has enabled people to create new applications and technology to help improve life.
_______________ and _________________looks at how our questions can be answered. The Internet at our fingertips allows us to find out almost anything, instantly
Research and Discovery
Potential and Innovation
explores what has already been created and what might be possible in the future.
What current technology does your Oyster card and bank cards use to connect to payment systems?
Radio frequency identification (RFID)
Moore’s Law says that the number of transistors in integrated circuit boards __________ every two years
doubles
Where can RFID technology be used ?
Passports
Bank Cards
Home Appliances
Animal Pet tags
What is NOT an example of future and emerging technologies?
laptops
What is the storage capacity that would roughly hold 300 MP3s or 40 minutes of video at DVD quality?
Gigabytes
