🔥 Most Repeated — Introduction to Computing

CSS Computer Science (Optional) — Paper-I, Section-A, Topic I. These 9 question-patterns were identified by reviewing actual FPSC Computer Science past papers (2016, 2017, 2018, 2019, 2022, 2024) and pulling out the themes that recur across multiple years — either the exact same question or the same underlying concept asked with different scenario details. Wording below is paraphrased/summarized from the official papers for study purposes; year tags show where each pattern was drawn from.

Q1. Categories of Computers — Which Suits an Individual User

Appeared: 2016, Q2(b)

Determine which computer category (supercomputer, mainframe, minicomputer, microcomputer) suits an individual user, with justification.

Solution:

Category	Size / Cost	Processing Power	Typical Users	Example
Supercomputer	Room-sized, extremely expensive	Highest — trillions of calculations/sec	Weather forecasting, nuclear research, scientific simulation	Fugaku, Summit
Mainframe	Large, very expensive	Very high, built for reliability & throughput	Banks, airlines, government bulk transaction processing	IBM Z-series
Minicomputer	Mid-sized, moderately expensive	Medium — serves multiple simultaneous users	Mid-size business departments, labs	Legacy VAX systems
Microcomputer	Small, low-cost	Sufficient for single-user tasks	Individuals, homes, offices	Desktop PC, laptop

Conclusion: A microcomputer (desktop/laptop) suits an individual user.

Justification: it is affordable for a single owner, its processing power is more than adequate for everyday tasks (documents, browsing, media, light programming), it is portable and single-user by design (no need to share resources like a mainframe or supercomputer does), and its running/maintenance costs are negligible compared to institutional-grade machines.

Q2. Curbing Cybercrime — Technical Countermeasures

Appeared: 2017, Q2(a)

The internet era has given rise to the problem of cybercrimes. What technical means would you suggest to curb this problem?

Solution:

Cybercrime is any criminal activity carried out using computers or networks — hacking, phishing, identity theft, malware distribution, financial fraud, and cyberbullying are common forms. Effective technical countermeasures include:

Firewalls — filter incoming/outgoing traffic against defined security rules, blocking unauthorized access
Antivirus / anti-malware software — detects and removes malicious code before it executes
Encryption — protects data both at rest (stored files, databases) and in transit (TLS/SSL for web traffic), so intercepted data is unreadable
Intrusion Detection/Prevention Systems (IDS/IPS) — monitor network traffic for suspicious patterns and can block attacks in real time
Multi-factor authentication (MFA) — a stolen password alone is not enough to gain access