Question 2, Summer 2023, Pearson Edexcel International GCSE (9-1) Information and Communication Technology, Paper-1
Camille uses digital devices for work.
(a) A
distance sensor is used as an input for an embedded system in a car.
(i)
Describe how a distance sensor is used by an embedded system in a car. (2)
When a distance sensor in a car detects that a
car/object/pedestrian is close, it triggers an actuator response, which can
involve applying the brakes, changing the car’s direction, or vibrating the
steering wheel. Additionally, it may produce an audio/visual output, such as
sounding an alarm or displaying a warning, to alert the driver to the potential
danger.
(ii) Which one of these is another example of an input for a device? (1)
A LED
B Monitor
C Scanner
D Speaker
C Scanner
(b)
State the number of instructions that can be executed every second by a 3.2MHz
processor. (1)
3.2 million of instructions that can be executed every second by a
3.2 MHz processor.
(c)
GPS can be used to monitor people’s movements.
State
one other way of monitoring people’s movements. (1)
CCTV can be used to monitor people’s movements.
(d)
Camille’s laptop uses secondary storage.
(i)
Which one of these is a feature of a hard disk that allows data to be read? (1)
A It allows electrons to be
stored
B It is reflective
C It is magnetically charged
D It connects directly to the network
C It is magnetically charged
(ii) Here is a diagram that shows secondary storage.
Four
files (A, B, C and D) are stored on it.
Each
file is made up of several blocks (1, 2, 3, etc.)
(iii)
State one type of storage media that stores data as electrical charges. (1)
Solid-state drive (SSD)
(iv) Which one of these is the largest amount of data? (1)
A 0.010 GiB
B 0.100 TiB
C 0.001 MiB
D 1.000 KiB
B 0.100 TiB
(v) State two characteristics of hard disk drives that make them more suitable for use with servers than magnetic tape. (2)
1 HDDs provide relatively fast
access times and data transfer speeds, which are essential for quick data
retrieval and efficient data processing in server applications.
2 HDDs are built to withstand constant usage and are generally more durable than magnetic tape.
(vi)
Which one of these is a reason for using local storage rather than online
storage? (1)
A Data stored locally is harder
to intercept
B Local storage media cannot be
encrypted
C Online storage cannot be
backed up automatically
D Online storage is always
compressed
A Data stored locally is harder to intercept
(e)
Which one of these is processed by the CPU? (1)
A Connectivity
B Embedded systems
C Hardware
D Malware
D Malware
(f)
Camille’s laptop uses memory.
(i)
Which one of these statements is true? (1)
A ROM is never used in laptops
B ROM always stores more
instructions than RAM
C ROM contains values that can
be changed by applications
D ROM is used to store startup files
D ROM is used to store startup files
(ii)
Give one drawback of increasing the size of random access memory. (1)
One drawback of increasing the
size of random access memory (RAM) is the increased cost associated with larger
memory modules. As the RAM capacity increases, the cost of purchasing and
installing more memory modules also rises.
(g)
Which one of these is a function of an operating system? (1)
A Convergence
C Memory management
D Office productivity
C Memory management
Total for Question 2 = 17 marks
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