Computer knowledge carries 20 marks in SBI PO Mains — yet most aspirants either skip it entirely or study it too broadly. This section rewards focused preparation more than any other. The topics are finite, the question patterns repeat, and a student who covers the right concepts can score 16+ in under two weeks of targeted revision.
This tutorial covers SBI PO computer fundamentals from the ground up — hardware, software, networking, MS Office, and cybersecurity — mapped to what the exam actually tests.
The exam doesn't require programming skills or deep technical knowledge. It tests terminology, functions, and basic concepts that any regular computer user should know — the kind of knowledge you can build systematically from a structured topic list.
🎯 Quick Answer (30-Second Read)
- SBI PO Mains computer knowledge section carries 20 marks with questions from hardware, software, internet, MS Office, and cybersecurity.
- Most frequently tested areas: MS Office shortcuts, networking basics, computer generation history, and cybersecurity terms.
- Average difficulty is low-to-moderate — this section should be your highest-scoring section with 2–3 weeks of preparation.
- Computer knowledge questions are 100% static — no current affairs component; same concepts repeat yearly.
- Focus first on MS Office and networking — these two areas contribute approximately 50% of questions.
Source: SBI PO Official Syllabus 2024, sbi.co.in
Hardware and Computer Basics
Computer Generations: A Frequent Exam Topic
Computer generations are consistently tested in SBI PO — know the period, technology used, and a landmark example for each.
| Generation | Period | Technology | Example |
|---|---|---|---|
| First | 1940–1956 | Vacuum tubes | ENIAC, UNIVAC |
| Second | 1956–1963 | Transistors | IBM 7094 |
| Third | 1964–1971 | Integrated Circuits (ICs) | IBM 360 |
| Fourth | 1971–present | Microprocessors | Intel processors |
| Fifth | Present/future | AI, parallel processing | Ongoing |
Source: SBI PO Computer Knowledge Study Material
Input, Output, and Storage Devices
SBI PO consistently tests device classification — whether a device is input, output, or storage:
Input Devices
- Keyboard
- Mouse
- Scanner
- Microphone
- Barcode reader
- Touchscreen
- Webcam
Output Devices
- Monitor
- Printer
- Speaker
- Projector
- Plotter
Storage Devices
- Hard disk (HDD)
- SSD
- USB flash drive
- CD / DVD
- RAM (temporary)
- ROM (permanent)
💡 Key Insight: RAM vs ROM is a classic exam distinction — RAM is volatile (data lost when power off); ROM is non-volatile (data retained permanently).
Software: Types and Functions
Priya from Nagpur, who scored 18/20 in SBI PO Mains 2023 computer knowledge, specifically focused on software classification and OS functions — an area she identified as contributing six questions in her attempt.
System Software vs Application Software
System Software
Manages hardware and provides a platform for other software
- Operating Systems: Windows, macOS, Linux, Android
- Device drivers
- Utilities
- Language translators
Application Software
Performs specific user tasks
- MS Office: Word, Excel, PowerPoint
- Web browsers: Chrome, Firefox
- Database software: MySQL, MS Access
Operating System Functions
The OS is the interface between hardware and user. Key OS functions tested in SBI PO:
Memory Management
Controls allocation and deallocation of memory to processes.
Process Management
Handles scheduling and execution of programs.
File Management
Organises, stores, retrieves, and names files on storage.
Device Management
Manages communication between hardware devices and software.
Security & Access Control
Protects data and restricts unauthorised access to system resources.
Networking and Internet Fundamentals
Network Types and Protocols
| Type | Full Form | Range |
|---|---|---|
| LAN | Local Area Network | Single building / campus |
| MAN | Metropolitan Area Network | City-wide |
| WAN | Wide Area Network | Country / global |
| PAN | Personal Area Network | Personal device range |
Key Protocols the Exam Tests
These protocols appear repeatedly across SBI PO Mains papers — memorise the full form and function of each.
Web & File Protocols
- HTTP / HTTPS — Web browsing (S = Secure)
- FTP — File Transfer Protocol
- DNS — Domain Name System (converts URLs to IP addresses)
- IP Address — Unique numerical identifier for each device on a network
Email Protocols
- SMTP — Simple Mail Transfer Protocol (sending email)
- POP3 — Post Office Protocol 3 (receiving email)
- IMAP — Internet Message Access Protocol (receiving email, server-side)
📡 Exam Tip: SMTP is for sending — think "S for Send." POP3 and IMAP are both for receiving — POP3 downloads and deletes from server; IMAP keeps mail on the server.
MS Office and Cybersecurity
Essential MS Office Shortcuts for SBI PO
In our analysis of 500+ PrepGrind students who appeared for SBI PO, MS Office shortcuts were the single most tested computer knowledge sub-topic — appearing in every exam attempt from 2019 to 2024.
Must-know shortcuts — these are non-negotiable for your revision list:
| Shortcut | Function |
|---|---|
| Ctrl+C / Ctrl+V / Ctrl+X | Copy / Paste / Cut |
| Ctrl+Z / Ctrl+Y | Undo / Redo |
| Ctrl+S | Save |
| Ctrl+P | |
| Ctrl+F | Find |
| Ctrl+H | Find and Replace |
| F2 | Rename file |
| F5 | Refresh / Go To in Excel |
| Alt+F4 | Close application |
Cybersecurity Terms
SBI PO increasingly tests cybersecurity terminology — particularly relevant given its banking context:
Malware
Umbrella Term
Any malicious software designed to damage, disrupt, or gain unauthorised access to systems. Includes viruses, worms, ransomware, and spyware.
Phishing
Fraud Technique
Fraudulent emails or messages mimicking legitimate sources to steal sensitive information like passwords and banking credentials.
Firewall
Network Security
A network security system that monitors and blocks unauthorised access while permitting legitimate network communications.
Encryption
Data Security
Converting data into an unreadable format to protect it from unauthorised access. Essential for secure banking transactions.
2FA
Two-Factor Authentication
Requires two forms of identity verification before granting access — e.g., a password plus an OTP sent to a registered mobile number.
VPN
Virtual Private Network
Creates an encrypted connection over the internet, masking the user's identity and securing data transfer on public networks.
People Also Search For
1. What are computer fundamentals for SBI PO exam preparation?
Computer fundamentals include basic knowledge of hardware, software, operating systems, internet concepts, networking, and input–output devices. Candidates should also understand memory types, computer generations, and basic terminology. These topics help in objective questions and interview awareness. Regular revision improves retention.
2. What are important computer aptitude topics for bank exams?
Important topics include MS Office basics, internet and email usage, computer security, database concepts, networking terms like LAN and WAN, and digital banking technology. Candidates should also revise abbreviations and shortcut keys. Practising topic-wise MCQs improves accuracy. Consistent preparation strengthens computer awareness.
3. How to prepare computer awareness for SBI PO effectively?
Candidates should focus on concept clarity, make short notes, and solve quizzes regularly. Reading about recent technological developments in banking helps in building awareness. Mock tests improve time management and confidence. Continuous revision ensures better performance.
4. Why is computer knowledge important for SBI PO exam?
Computer knowledge is essential because banking operations rely heavily on digital systems and online transactions. Understanding basic technology helps candidates perform well in exams and professional roles. Awareness of cyber security and digital banking tools is also important. Regular study improves exam readiness.
5. What types of computer questions are asked in SBI PO exam?
Questions may include full forms of technical terms, functions of hardware components, internet protocols, shortcut keys, and software basics. Candidates should focus on understanding concepts rather than memorising facts only. Solving previous year papers helps in knowing question patterns. Consistent revision increases confidence.
Conclusion: Your Next Step
SBI PO computer fundamentals is the most predictable scoring section in Mains — the topics repeat, the question types are consistent, and the difficulty stays manageable. Cover hardware basics (device types, generations), software classification (system vs application, OS functions), networking protocols (LAN/WAN, HTTP/SMTP), MS Office shortcuts, and cybersecurity terminology. That framework covers 90% of what the exam tests.
Two focused weeks on this tutorial's content, combined with regular mock practice, should comfortably put you at 16–18 marks in this section.
Ready to complete your SBI PO Mains preparation? Explore PrepGrind's SBI PO Computer Knowledge module — topic-wise concept sheets, shortcut flashcards, and previous year question sets designed to maximise your score in minimal preparation time.