📚 JAIIB 2025 • PPB • Module C (Ch 1 of 9) • Unit 42

Essentials of Bank Computerisation

Rangarajan Committee (1983/1988). 4 objectives: customer service, housekeeping, decision-making, productivity. Evolution: branch-level → TBA → CBS. Networking: LAN/WAN/VSAT/MPLS. CBS: centralised database, 24×7, any branch, integrated channels. Data Centre + DR Site. Data Warehousing + Mining.

⏱ 16 min read🎯 High Exam Weightage🧠 4 Memory Tricks⚡ 8 Flash Cards

Banky Goes Digital! 💻

Welcome to Module C — Banking Technology! From the first Rangarajan Committee to today’s CBS-powered digital banking, this module covers how technology transformed banking from ledger books to laptops!

“Sir, what is CBS and why is it called CORE banking? Does it mean the core of the bank?” 💻

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Section 1 of 9

Why Read This Chapter?

Technology transformed banking from paper ledgers to 24×7 digital services — understand the journey

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How did bank computerisation evolve in India?

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Evolution: Rangarajan Committee (1983 — First Report, 1988 — Second Report) kickstarted computerisation. 4 objectives: (1) Customer service, (2) Housekeeping, (3) Decision-making, (4) Productivity & profitability. Phases: Branch-level (ALPMs, standalone) → Total Branch Automation (TBA) (multi-user, single window, integrated) → Core Banking Solution (CBS) (centralised database, any branch, 24×7, all channels integrated). CBS examples: Finacle (Infosys), BaNCS (TCS), Flexcube (Oracle). Network card is NOT necessary for standalone computer (exam PYQ!).

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Exam Marks

2-3 questions — network card not needed for standalone (exam PYQ!), terminals = clients/nodes (both — exam PYQ!), online UPS for uninterrupted power (exam PYQ!), CBS = centralised database + any branch + 24×7. Important for Module C!

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Career Growth

Every banker works on CBS daily — understanding its architecture helps you troubleshoot and serve better

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Real Life

Understanding how your bank’s technology works helps you use digital banking more effectively

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Section 2 of 9

How Will It Benefit You?

Real career advantages

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Give me a real scenario!

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💻 Scenario: Banky joins a rural branch. He notices: (1) The branch has no local server — all transactions go to the central Data Centre via MPLS/VSAT. (2) Customer opens an FD at this branch and can operate it from any branch (CBS benefit). (3) The same customer uses ATM, internet banking, mobile banking — all integrated with CBS. (4) If the Data Centre fails, the Disaster Recovery Site (DRS) takes over seamlessly. (5) Online UPS ensures no power interruption. Manager: ‘CBS = any branch, any time, any channel!’ 🌟

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Section 3 of 9

What Is This Chapter About?

30-second summary

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Quick version, sir!

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This chapter covers: Rangarajan Committee: First Report (1983-84) — computerisation guidelines. Second Report (1988) — 5-year perspective plan (1990-94). 4 Objectives: Customer service, housekeeping, decision-making, productivity/profitability. Evolution: (1) Branch-level: ALPMs (standalone), not interconnected, manual general ledger. Security in-built (passwords, access rights). Disk mirroring/duplexing for failure recovery. (2) Total Branch Automation (TBA): Multi-user, all products computerised, single window concept, integrated modules, real-time updates, audit trails. (3) Core Banking Solution (CBS): Centralised model. Central host + central database. Branches connected via WAN (leased lines, MPLS, VSAT, RF, 3G/4G). One software for all branches on bank intranet. CBS Business Components: Retail modules, deposits/loans/bills/remittances, trade finance/forex, govt business, corporate finance, MIS, business intelligence, integration with ATM/POS/telebanking/internet/mobile, interface with RTGS/NEFT/CTS/NACH/IMPS/UPI, treasury/ALM/HRMS. CBS Benefits: 24×7 from any branch/channel, centralised data repository, data warehousing/mining, standardisation, BPR, no servers needed at branches. CBS Requirements: Primary Data Centre (central servers, redundant power, communication network, 24×7 manning, skilled staff). Disaster Recovery Site (DRS) — business continuity, backup, non-stop functioning. BPR (Business Process Re-engineering). Software (branch modules + delivery channels + interfaces + BI). Hardware (configured per transaction volume). Networking: LAN (Local Area Network — within premises). WAN (Wide Area Network — across locations). Topologies: star, ring, bus, mesh. Protocols: TCP/IP. UPS: Online UPS (exam PYQ! — continuous, no changeover delay, regulates voltage). Offline UPS (standby, few milliseconds changeover). Data Warehousing: Central repository of integrated data from multiple sources. Data Lake (raw data). Data Mart (subset for specific area). Data Mining: Extracting patterns from large datasets. Applications: customer segmentation, loan risk analysis, credit card risk, stock portfolio, fraud detection. Standalone computer: Network card NOT necessary (exam PYQ!). Terminals connected to server = clients/nodes (both — exam PYQ!).

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Section 4 of 9

Key Definitions — Banky Asks, Mentor Explains

Every term explained like you’re 10

Critical Term

Core Banking Solution (CBS)

Centralised database, branches connected via WAN, 24×7, any branch banking, all channels integrated. Finacle/BaNCS/Flexcube.

Centralised

Banky’s Understanding: CBS: Centralised branch computerisation model. Central host with central database. All branches connected via WAN (leased lines, MPLS, VSAT, RF, 3G/4G). One banking software for all branches on bank intranet. Transactions done online centrally. 24×7 from any branch/channel. Integrated with: ATM, debit card, telebanking, mobile banking, internet banking, kiosks. Interface with: RTGS, NEFT, CTS, NACH, IMPS, UPI, SWIFT, treasury, ALM, HRMS. Examples: Finacle (Infosys), BaNCS (TCS), Flexcube (Oracle). Benefits: centralised data, standardisation, new products/services, BPR, no branch servers needed.

🧒 Analogy: CBS = all branches sharing one brain (central database). Like Google Drive — your files are in the cloud, accessible from any device (branch), anytime (24×7), through any app (ATM/internet/mobile). One source of truth for the entire bank!

Critical Term

Computerisation Evolution

Branch-level (ALPMs, standalone) → TBA (multi-user, single window) → CBS (centralised, any branch, 24×7)

3 phases

Banky’s Understanding: 3 phases: (1) Branch-level (1980s): ALPMs (Automatic Ledger Posting Machines). Standalone, not interconnected. Specific products only. Manual general ledger. Security: passwords, disk mirroring. (2) TBA (mid-1990s): Total Branch Automation. Multi-user. All products computerised. Single window concept. Integrated modules. Real-time updates. Audit trails. Scale: single to universal window. (3) CBS (2000s onwards): Centralised model. Any branch banking. 24×7. All channels integrated. Central database. No branch servers needed. Data warehousing/mining. Rangarajan Committee: 1983 (First Report) + 1988 (Second Report, 5-year plan 1990-94). 4 objectives: customer service, housekeeping, decision-making, productivity.

🧒 Analogy: Like phone evolution: Branch-level = landline (fixed, limited). TBA = early mobile (portable, more features). CBS = smartphone (connected, all apps integrated, anytime anywhere). Each phase was a quantum leap!

Critical Term

Networking & UPS

LAN (local), WAN (wide). Topologies: star/ring/bus/mesh. Online UPS = continuous (no changeover delay). Offline = standby.

LAN/WAN + UPS

Banky’s Understanding: Networking: LAN (Local Area Network — within premises/building). WAN (Wide Area Network — across cities/states, connects branches to Data Centre). Technologies: leased lines, MPLS, VSAT, RF, 3G/4G. Topologies: star (central hub), ring (circular), bus (linear), mesh (all-to-all). Protocols: TCP/IP. UPS: Online UPS (exam PYQ!): continuous power, no changeover delay, regulates input voltage, battery always in circuit, used for branch computerisation. Offline UPS: Standby, few milliseconds changeover, does not regulate voltage. Standalone computer: network card NOT necessary (exam PYQ!). Terminals = clients AND nodes (both) (exam PYQ!).

🧒 Analogy: LAN = your home WiFi (connects devices in one place). WAN = the internet (connects locations across the world). Online UPS = a hospital’s power backup (never a gap). Offline UPS = a home inverter (brief flicker during switchover).

Critical Term

Data Warehousing & Mining

Warehouse = central integrated data repository. Data Lake = raw data. Data Mart = subset. Mining = extracting patterns from large datasets.

Analytics

Banky’s Understanding: Data Warehousing: Central repository of integrated data from multiple sources (CBS, channels, external). Subject-oriented, integrated, time-variant, non-volatile. Data Lake: Repository of raw, unprocessed data in native format. Data Mart: Subset of data warehouse for specific business area (e.g., retail, treasury). Data Mining: Process of extracting useful patterns, correlations, and knowledge from large datasets. Banking applications: (1) Customer segmentation. (2) Loan risk analysis. (3) Credit card fraud detection. (4) Stock portfolio analysis. (5) Cross-selling opportunities. (6) Risk management. (7) Regulatory reporting.

🧒 Analogy: Data Warehouse = a huge library with all the bank’s data organised by topic. Data Lake = a storage room with raw, unsorted files. Data Mart = a specific section (like the fiction shelf). Data Mining = a detective searching through the library to find hidden patterns and clues!

Critical Term

Data Centre & DR Site

Data Centre: central servers, redundant power, 24×7, skilled staff. DR Site: backup for continuity if Data Centre fails.

DC + DRS

Banky’s Understanding: Data Centre: Houses central servers for online transactions. Redundant power backup (generators/UPS). Communication network connecting all branches. Central database for all customer services. Manned 24×7. Skilled staff: software development, DB administration, system admin, network monitoring, backups, troubleshooting. Disaster Recovery Site (DRS): Maintains business continuity if DC fails. Backup for reliable processing. Non-stop functioning of branches and channels. Located at different geographic location (disaster resilience). BPR (Business Process Re-engineering): Realign existing processes with new technology. Adopt best practices. Enhanced value delivery.

🧒 Analogy: Data Centre = the bank’s brain (where all thinking happens). DR Site = a backup brain in another city. If the main brain has a stroke (disaster), the backup brain takes over instantly. BPR = rewiring the brain to work better with new technology!

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Section 5 of 9

Chapter Explained in Simple Stories

So easy even Banky’s nephew understands

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Sir, explain this like a story!

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Three bite-sized stories coming up — impossible to forget! 🚀

💻 Block 1: Evolution & CBS

Rangarajan Committee: 1983 (First) + 1988 (Second). 4 objectives: customer service, housekeeping, decision-making, productivity.

Evolution: Branch-level (ALPMs) → TBA (single window) → CBS (centralised, any branch, 24×7).

CBS: Central database, WAN connectivity, all channels integrated. Finacle/BaNCS/Flexcube.

Standalone = network card NOT necessary (exam PYQ!). Terminals = clients AND nodes (exam PYQ!).

Key Term

Network Card ≠ Standalone

A network card is NOT a necessary component for a standalone computer system. It is needed only when the computer needs to connect to a network. Hard disk, OS, and memory ARE necessary.

🧑‍💼 Banky: “Rangarajan 1983/88, branch→TBA→CBS, centralised 24×7, network card not needed standalone! 💻”

🔌 Block 2: Networking, UPS & Data

LAN: Local (within premises). WAN: Wide (across locations, MPLS/VSAT/leased). Topologies: star/ring/bus/mesh.

Online UPS: Continuous, no changeover delay, regulates voltage (exam PYQ!). Offline: standby, few ms delay.

Data Centre: Central servers, 24×7, skilled staff. DR Site: Backup for business continuity.

Data Warehousing: Integrated repository. Data Mining: Extract patterns. Lake = raw. Mart = subset.

Key Term

Online UPS = Continuous

For uninterrupted power supply in branch computerisation, ONLINE UPS is used — not offline UPS, converter, or generator. Online UPS has zero changeover delay and regulates voltage.

🧑‍💼 Banky: “LAN=local, WAN=wide, online UPS=continuous, Data Centre+DRS, warehousing+mining! 🔌”

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Section 6 of 9

Exam Angle — Every Testable Point

All facts, numbers, definitions JAIIB tests

✅ Must-Know Facts — Highest Probability

Network card NOT necessary for standalone computer — exam PYQ!
Terminals connected to server = clients AND nodes (both) — exam PYQ!
Online UPS for branch computerisation (continuous, no changeover delay) — exam PYQ!
Rangarajan Committee: 1983 (First Report) + 1988 (Second Report, 5-year plan)
4 objectives: customer service, housekeeping, decision-making, productivity
Evolution: branch-level (ALPMs) → TBA (single window) → CBS (centralised)
CBS: central database, WAN, 24×7, any branch, all channels integrated
CBS examples: Finacle (Infosys), BaNCS (TCS), Flexcube (Oracle)
Data Centre: central servers, redundant power, 24×7, skilled staff
DR Site: backup for business continuity if Data Centre fails
LAN = local (within premises) | WAN = wide (across locations)
Topologies: star, ring, bus, mesh | Protocols: TCP/IP
Data Warehousing: integrated repository | Data Lake: raw data | Data Mart: subset
Data Mining: extracting patterns — customer segmentation, fraud detection, risk analysis
BPR: Business Process Re-engineering — realign processes with new technology

📝 Previous Year Questions

Q: Not necessary for standalone:

A: (d) Network card ✅

Q: Terminals connected to server:

A: (d) Both clients and nodes ✅

Q: UPS for branch computerisation:

A: (a) Online UPS ✅

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Section 7 of 9

Memory Tricks That STICK

Lock every fact permanently

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Too many facts! Help! 🤯

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These tricks will lock everything in forever! 🧲

🧠 Trick 1 — No Network Card for Standalone

Computer components

STANDALONE computer needs: Hard Disk ✅ OS ✅ Memory ✅ Network Card = NOT needed! ❌ (Network = connecting to others!)

A standalone computer works independently without network connectivity. So a network card (which connects to networks) is not necessary.

🧠 Trick 2 — Online UPS = Continuous

Power supply

Branch computerisation UPS: ONLINE UPS = CONTINUOUS! No changeover delay Regulates voltage (Not offline/converter/generator!)

Online UPS provides uninterrupted power with zero changeover delay. It continuously powers the system through the battery and inverter, unlike offline UPS which has a brief switchover.

🧠 Trick 3 — CBS Evolution

3 phases

Bank IT Evolution: 1. Branch-level (ALPMs – 1980s) 2. TBA (single window – 1990s) 3. CBS (centralised – 2000s) (Standalone → Integrated → Centralised!)

Banking computerisation evolved in 3 clear phases: standalone machines, then integrated branch systems, then centralised core banking connecting everything.

🧠 Trick 4 — Rangarajan = 1983+1988

Committee

RANGARAJAN Committee: 1983 = First Report (computerisation) 1988 = Second Report (5-yr plan 1990-94) 4 objectives: CHDP Customer, Housekeeping, Decision, Productivity

Dr. C. Rangarajan (Deputy Governor RBI) chaired two committees on bank computerisation. The first in 1983 and the second in 1988.

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Section 8 of 9

Visual Summary — Chapter Map

Entire chapter in one diagram

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Section 9 of 9

Flash Revision — Last-Minute Cards

Read these 10 minutes before exam

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EXAM IN 15 MINUTES! 😰

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8 cards — read twice, you’ll get every question right! 💪

Rangarajan

1983 (First) + 1988 (Second Report)

4 objectives: customer, housekeeping, decision, productivity

Evolution

Branch-level → TBA → CBS

ALPMs → Single window → Centralised 24×7

CBS

Central database | Any branch | All channels

Finacle | BaNCS | Flexcube | WAN connected

Standalone

Network card NOT necessary!

Hard disk + OS + memory = sufficient

Online UPS

Continuous | No changeover delay

Regulates voltage | For branch computerisation

Data Centre

Central servers | 24×7 | Skilled staff

DR Site = backup for business continuity

Networking

LAN (local) | WAN (wide) | MPLS/VSAT

Topologies: star/ring/bus/mesh | TCP/IP

Data Mining

Extract patterns from large datasets

Customer segmentation | Fraud | Risk | Cross-sell

⚡ Chapter 42 Complete — Essentials of Bank Computerisation

Rangarajan: 1983+1988 | 4 objectives: customer service, housekeeping, decision, productivity
Evolution: branch-level (ALPMs) → TBA (single window) → CBS (centralised, any branch, 24×7)
CBS: central database, WAN, Finacle/BaNCS/Flexcube | Network card NOT needed for standalone
Infrastructure: online UPS (continuous), Data Centre + DR Site, LAN/WAN, data warehousing + mining

Banky says: “Rangarajan 1983/88, branch→TBA→CBS, network card≠standalone, online UPS, DC+DRS!” 🎉💻

You now understand the foundations of bank computerisation — from ALPMs to CBS to Data Mining. Module C has begun! 💪

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