Theory: V EOY review cards
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15 Terms
What is the numerical differnece between 1 kilobyte and 1 kibibyte?
24 bytes
What happens on the rising edge of the system clock?
The next instruction is fetched
What is one benefit of random access storage?
Memory locations can be read in any order
A: Read write head
B: Sector
C: Concentric track
D: Platter
Why is downtime a drawback of cloud computing?
If internet fails, users cannot access resources
Why are security risks a drawback of cloud computing?
Danger to computer systems from data breaches, hackers, force majeure
Why is lack of control a risk of cloud computing?
Cloud based resources are owned and operated by other companies so less control for a company rather than its own on-premises infrastructure
Ethernet or wifi…
A wired connection
Ethernet
Ethernet or wifi…
More likely to be affected by interference
Wifi
Ethernet or wifi…
Data can be transmitted at a faster speed
Ethernet
Ethernet or wifi…
Wireless transmission
Wifi
Ethernet or wifi…
Shorter transmission range before data is lost
Wifi
What is a sensor?
An input transducer which detects physical energy and converts it into electrical signals
A sensor sends a signal to a microcontroller.
What happens to enable the microcontroller to interpret the signals?
Sensor emits analogue signals, which are passed through an ADC, which is then converted from the sensor to digital
Describe a difference in arrival between synchronous and asynchronous data transmission
In synchronous communication, bits are reassembled in order of arrival
In asynchronous, arrival packets are reassembled into files