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Imperial CS - Year 2

Lecture notes, past papers, and revision threads for Computing second-years.

Public142 notes
Imperial College London
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Cambridge Econ Tripos

Shared summaries for Micro, Macro, and Quant papers — prepping for Tripos 2026.

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University of Cambridge
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Quantum — Book of Truth
CSC 3132
Complex Linear Algebra
Vectors
Vector = value with magnitude and direction (2-dimensional v).
Can be represented as columns (vectors) or rows (covectors).
Multiplying a vector by a covector gives a scalar.
Norm
Quantum Book of Truth
Felix Arkle
04/04/2026
Classifications of Malware 3
Virus vs. Worm
The main distinction is the requirement for a host.
•Virus:
•Mechanism: Attaches itself to executable code (the host). When the host runs, the virus runs.
•Spread: Requires user interaction (e.g., opening an email attachment, inserting a USB).
•Worm:
•Mechanism: Standalone program. Does not need a host file.
CSC3632 — Lecture Note…
Felix Arkle
08/12/2025
Malware Classifications
1. What is the key difference between a virus
A) A virus is standalone; a worm needs a host</
B) A worm requires user interaction; a virus do
C) A virus attaches to executable code; a worm
D) A worm can only spread via email; a virus ca
The correct answer is C because a virus attache
Answer: C
Quiz: CSC3632 — Lectur…
Felix Arkle
04/12/2025
Gateway 2 Feedback:
•Delve further into the wellness app market. Begin by cont
•Define if I am looking to target the UK or US-UK-Europe m
•Look at existing wellness apps and see which markets they
•Shergill quote - health apps currently not helped improve
•Look at app developer market and think about potential re
•Subscription models fall into criticism due to unknown re
Gateway 2 To-Do:
Workshop 2 Research
Sophia Sinclair
13/11/2025
Eigenvalues & Eigenvectors
Definition
For a square matrix A, a non-zero vector v is an eigenvector
if Av = λv for some scalar λ (the eigenvalue).
Characteristic Polynomial
det(A − λI) = 0 gives the eigenvalues.
Worked Example
A = [[2,1],[1,2]] → λ = 3, 1. Eigenvectors (1,1), (1,−1).
Linear Algebra — Week 4
Felix Arkle
02/11/2025
Process Scheduling
Scheduling Criteria
•CPU utilisation — keep the CPU as busy as possible.
•Throughput — number of processes completed per unit time.
•Turnaround time — submission → completion.
•Waiting time — time spent in the ready queue.
•Response time — submission → first response.
Algorithms: FCFS, SJF, Priority, Round Robin.
CSC3232 — Operating Sy…
Arjun Patel
21/10/2025
Discipline and Punish — Part III
Panopticism
Bentham's Panopticon as a diagram of power: visibility is a
trap. The inmate is seen but does not see.
Key Quotes
"He is seen, but he does not see; he is the object of info…"
Reflection
The classroom mirrors the panoptic structure — attendance,
Reading Log — Foucault
Mei Tanaka
15/10/2025
Chapter 2: Literature Review
Introduction
This chapter surveys existing work on collaborative study
platforms, with particular attention to spaced-repetition
and peer-learning outcomes in higher education.
2.1 Peer-Learning Systems
Prior work (Topping, 2005) identifies reciprocal peer tutor
as producing measurable gains across STEM cohorts.
Dissertation — Draft 1
Felix Arkle
03/10/2025

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Imperial CS - Year 2
142 notes · 38 members · Imperial College London
OverviewNotesDiscussionsLeaderboard
Problem set 3 - anyone got Q4?
Maya R
6
[Request] Lecture 7 notes
Felix A
2
Mock exam study session Thurs?
Idris K
11

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