JIRS
COMPUTER SCIENCE WORKSHEET
Name: ______________________________
GRADE: DP2
1. Cars have many automated features to improve the driving experience. One example is the use of
headlights that automatically switch on and off.
Some cars have adaptive cruise control. This uses RADAR technology and a processor to ensure
the car stays the same distance away from the car in front.
A system with many functions operating independently could be managed using either centralized
or decentralized processing.
As vehicles become fully autonomous (self-driving), ethical considerations must be taken into
account when designing software.
a.)State one input device used by the automated headlights.
[1]
b.)Explain how the interaction between the inputs, processing and the outputs of the feedback loop
ensure the car stays the same distance away from the car in front.
[6]
c.)Discuss the use of centralized and decentralized processing in the context of control systems such
as those involved in the operation of motor vehicles.
[5]
d.)Explain one ethical concern that must be considered in the development of autonomous vehicles.
[3]
2. A rail transport company uses a global positioning system (GPS) to determine a train’s position.
The GPS data is used to provide real-time arrival data on video displays in train stations.
The GPS data is made publicly available so that software developers can use it to build apps.
The mobile application ATrainAway uses the real-time train GPS data as well as the GPS data from
the user’s smartphone.
a.Explain how GPS works.
[4]
b.i.)State one data item concerning the arrival of a train that may be provided on the video display.
[1]
b.ii.)Outline how sensors can be used in combination with GPS to provide more accurate arrival
data.
[2]
c.)Outline two pieces of information that the ATrainAway application could provide to the user.[4]
d.)Discuss the advantages and disadvantages of using GPS in transportation systems. [4]
3. Outline one feature of autonomous agents.
[1]
4.Outline 2 distinct features of autonomous agents
[4]
5.Describe the different types of Input devices.
6.Describe four different types of output devices
7.Describe how feedback is used in a garage door control system.
8.Describe the differences between an open and closed loop system.
[4]
9.Compare a centrally controlled system with a distributed system.
[4]
10.Describe the role of an autonomous agent in a control system.
11. Outline two distinct features of autonomous agents.
[4]
[4]
12. Describe how GPS system can identify the position of a person.
[3]
13.Discuss one ethical consideration of using CCTV in a workplace.
[3]
14. Identify two features of an autonomous agency acting within a large system [2]
Chapter 6 :
1. State three operating system resource management techniques.
2. Explain how an operating system manages peripherals.
3.A business has a range of different computers within the organization, including laptops, desktops
and file servers. Wherever possible the organization uses a common operating system on its
computers.
Memory requirements and processor speed will vary depending on the tasks required of the
computer.
The business has decided to implement a computer-based system to switch the room lights on and
off automatically. The lights will only be switched on if the level of light is below a specific reading
and there are people in the room. The lights will be switched off when the room has been
unoccupied for at least five minutes.
a.)Outline two resource management techniques that are likely to be carried out by the operating
system of a desktop computer.
[4]
b.)Outline one way the operating system hides the complexity of the hardware from the computer
user.
[2]
c.i.)Contrast the memory requirements of a laptop computer and a file server.
[2]
c.ii.Contrast the processor speed requirements of a laptop computer and a file server.
[2]
d.State two types of sensor that are required to control the lighting to ensure it switches on when it
is required.
[2]
e.Explain how the system makes use of the data it receives from the sensors to determine when to
switch the lights on.
[4]
f.Outline how the system will prevent the lights from being switched off too quickly when it thinks
the room is unoccupied. [2]
4.Outline the role of Paging in the management of primary memory.
5.Define Polling
[2]
[2]
6.a.Define the term Protocol
[1]
b. Outline why protocol are necessary [2]
7.Explain functions that an operating system needs to perform in relation to multitasking. [4]
8.Outline the function of an Interrupt.
[2]