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JAIIB Paper 3 • Accounting & Financial Management for Bankers (AFM) ⭐⭐⭐⭐
Core Banking Systems & Computerised Accounting
The final building block of Module B — how banking accounting moved from paper ledgers to a single, real-time national database. This guide covers Computerised Accounting's Meaning & Features, Key Terms, Computerised vs Manual Accounting, Advantages/Disadvantages, Accounting Software, Computerisation in Indian Banking, Core Banking Components, Information Security, and the Internet's Influence — with 50 exam-style MCQs with hidden answers.
📅 Updated: September 2026 • 27 min read
1 Meaning and Features of Computerised Accounting
💻
Definition
A Computerised Accounting System (CAS) maintains accounting records using computer software instead of manual books — automatically posting transactions, generating instant reports, and storing data electronically with built-in backup and recovery.
Automated Posting
A single voucher entry automatically updates every affected ledger account.
Instant Reports
Trial Balance, P&L, and Balance Sheet can be generated at any moment, not just at period-end.
Reduced Arithmetic Errors
Calculations are performed by the system, once data is correctly entered.
Electronic Storage & Backup
Data is stored digitally, with recovery mechanisms against loss.
2 Key Terms Used in Computerised Accounting
Chart of Accounts
A predefined hierarchy of account heads used by the software to classify every transaction.
Codification
A unique numeric/alphanumeric code assigned to each account for computer processing.
Voucher
The digital source document/entry screen through which a transaction is captured.
Data Backup & Restore
Creating and, if needed, retrieving a copy of data to guard against loss or corruption.
3 Computerised vs Manual Accounting
Aspect
Manual Accounting
Computerised Accounting
Speed
Slow — entries posted and totalled by hand
Instant — posting and totalling automated
Accuracy
Prone to human calculation errors
Accurate once data is correctly entered
Storage
Bulky physical registers
Compact electronic storage
Retrieval
Laborious manual search
Instant query/report generation
4 Advantages and Disadvantages of Computerisation
✅ Speed & Real-Time MIS
Instant posting and reporting for management decisions.
✅ Scalability & Audit Trail
Handles huge volumes while logging every entry for audit purposes.
❌ High Initial Cost
Significant investment in hardware, software and staff training.
❌ System/Cyber Dependency
Vulnerable to power/network outages and cybersecurity threats; still subject to "Garbage In, Garbage Out."
5 Computerised Accounting Software
Standalone accounting software typically offers Chart of Accounts setup, voucher entry, automatic ledger posting, Trial Balance/financial statement generation, MIS reports, user access controls and audit-trail logging. In banking specifically, these functions are embedded directly within the Core Banking Solution (CBS) rather than run as a separate package.
6 Computerisation in Indian Banking — Scope and Experience
1980s
Limited, initially contested mechanisation begins in Indian banks.
1984 & 1989
The Rangarajan Committee reports recommend structured computerisation of banking operations.
2000s
Full-scale CBS rollout across public and private sector banks.
Today
Virtually 100% of bank branches operate on CBS, enabling Anywhere Banking, ATMs, and digital channels.
7 Core Banking Components
Central Server / Data Centre
Hosts the single, live database for all branches.
Core Banking Application
The software running account maintenance, transactions and reporting.
Network Connectivity
Links every branch and channel to the central server in real time.
Peripheral Channel Integration
ATM switch, Internet Banking, Mobile Banking and UPI/NPCI interfaces, all plugged into the same core.
Disaster Recovery (DR) Site
A geographically separate backup site ensuring business continuity if the primary data centre fails.
8 Information Security in Banking
C-I-AConfidentiality, Integrity, Availability — the three pillars of information security
Access Controls
Passwords, OTPs and biometric authentication restrict system access to authorised users.
Encryption & Firewalls
Protect data in transit and block unauthorised network access.
Business Continuity Plan (BCP)
Ensures operations can continue, or resume quickly, after a disruption.
Regular Security Audits
Independently verify that controls remain effective.
JAIIB tip: RBI's Cyber Security Framework (2016) mandates every bank to have a Board-approved Cyber Security Policy and a Cyber Crisis Management Plan — while the Information Technology Act, 2000 is the overarching legal framework for electronic records, digital signatures and cyber offences in India.
9 Internet, WWW & Digital Banking's Influence
Internet & Mobile Banking
24x7 account access without visiting a branch.
UPI & Digital Wallets
Instant, low-cost peer-to-peer and merchant payments.
API / Open Banking
Banks expose services via APIs, enabling fintech integration.
JAM Trinity
Jan Dhan–Aadhaar–Mobile links accounts, identity and connectivity for financial inclusion.
This shift has reduced branch footfall for routine transactions, raised customer expectations for instant service, and made robust cybersecurity a board-level priority rather than a purely technical concern.
✓ Key Takeaways
Computerised Accounting replaces manual books with software-driven, real-time posting and reporting.
India's bank computerisation journey ran from 1980s mechanisation, through the Rangarajan Committee recommendations, to full CBS rollout in the 2000s — now near-universal.
Core Banking rests on a central data centre, network connectivity, peripheral channel integration, and a Disaster Recovery site.
Information security rests on Confidentiality, Integrity and Availability (CIA), under RBI's Cyber Security Framework and the IT Act, 2000.
The Internet and mobile channels (UPI, the JAM trinity) have reshaped banking access and made cybersecurity a strategic priority.
📝 Top 50 JAIIB-Style MCQs on Core Banking Systems & Computerised Accounting
Test your understanding with these 50 practice MCQs, closely modelled on the pattern expected in the JAIIB AFM exam — including combination-answer questions. Each question has 5 options — the correct answer is hidden by default; tap "Show Answer" to reveal it along with a short explanation.
💻 Meaning and Features of Computerised Accounting
1 A Computerised Accounting System (CAS) maintains records using:
A. Manual ledgers exclusively
B. Computer software
C. Only paper vouchers
D. Verbal instructions
E. Handwritten registers only
Answer: B. CAS uses computer software.
2 Under CAS, a single voucher entry:
A. Updates only one ledger, requiring separate manual posting elsewhere
B. Automatically updates every affected ledger account
C. Has no effect until year-end
D. Must be re-entered by a second clerk
E. Requires RBI approval before posting
Answer: B. One entry updates every affected ledger automatically.
3 Under CAS, financial statements like the Trial Balance can be generated:
A. Only once a year
B. At any moment, not just at period-end
C. Only by the RBI
D. Only after a statutory audit
E. Never, under CAS
Answer: B. Reports can be generated instantly, any time.
4 CAS reduces which type of error, though it does not eliminate all risk?
A. Data entry errors
B. Arithmetic/calculation errors
C. Legal drafting errors
D. Marketing errors
E. HR errors
Answer: B. Arithmetic/calculation errors are reduced by automation.
5 A core feature of CAS is:
A. Physical storage of registers only
B. Electronic data storage with backup and recovery mechanisms
C. No data storage at all
D. Manual re-entry every month
E. Storage only on paper microfilm
Answer: B. Electronic storage with backup is a core CAS feature.
🔑 Key Terms Used
6 A "Chart of Accounts" is:
A. A predefined hierarchy of account heads used by the software
B. A physical wall chart in the branch
C. A type of loan document
D. A customer's KYC record
E. A statutory return to RBI
Answer: A. A Chart of Accounts is a predefined account-head hierarchy.
7 "Codification" in accounting software refers to:
A. Encrypting customer passwords only
B. Assigning a unique code to each account for computer processing
C. Writing computer programs from scratch
D. A legal term unrelated to accounting
E. Deleting old accounts
Answer: B. Codification assigns unique account codes.
8 A "Voucher" in a computerised system is:
A. A discount coupon
B. The digital entry screen/document through which a transaction is captured
C. A type of loan
D. A statutory audit report
E. A customer complaint form
Answer: B. A voucher captures the transaction digitally.
9 "Data Backup" primarily guards against:
A. Loss or corruption of data
B. Excess profitability
C. Over-staffing
D. Excess capital adequacy
E. Interest rate risk
Answer: A. Backup guards against data loss/corruption.
10 "Data Restore" refers to:
A. Permanently deleting old data
B. Retrieving a backed-up copy of data when needed
C. Creating a new Chart of Accounts
D. Filing a statutory return
E. Issuing a fresh password
Answer: B. Restore retrieves backed-up data.
⚖️ Computerised vs Manual Accounting
11 Compared to manual accounting, computerised accounting offers:
A. Slower processing
B. Instant posting and reporting
C. No storage capability
D. No audit trail whatsoever
E. Identical retrieval speed
Answer: B. Computerised systems post and report instantly.
12 Manual accounting is more prone to:
A. Human calculation errors
B. Zero errors
C. Faster processing than computerised systems
D. Better data security
E. Instant MIS generation
Answer: A. Manual accounting is prone to human error.
13 Storage under manual accounting typically involves:
A. Bulky physical registers
B. Compact electronic databases
C. Cloud servers exclusively
D. No storage at all
E. Blockchain ledgers
Answer: A. Manual accounting uses bulky physical registers.
14 Retrieval of a specific past transaction is generally:
A. Faster under manual accounting
B. Faster under computerised accounting
C. Equally slow in both systems
D. Impossible under either system
E. Only possible via RBI intervention
Answer: B. Computerised systems allow instant retrieval.
15 Real-time updating of balances is a hallmark of:
A. Manual accounting
B. Computerised accounting (via CBS)
C. Neither system
D. Only annual audits
E. Only quarterly statements
Answer: B. Real-time updating is a CBS/computerised hallmark.
⚡ Advantages and Disadvantages
16 A key advantage of computerisation is:
A. Zero initial cost
B. Real-time MIS for management decisions
C. No dependency on power/network
D. Complete immunity from cyber risk
E. Elimination of all human involvement
Answer: B. Real-time MIS is a key advantage.
17 A key disadvantage of computerisation is:
A. It reduces audit trail visibility
B. High initial investment cost in hardware, software and training
C. It always increases arithmetic errors
D. It cannot generate any reports
E. It has no scalability
Answer: B. High initial cost is a genuine disadvantage.
18 "Garbage In, Garbage Out" (GIGO) means:
A. Computers automatically correct all wrong data entries
B. Incorrect input data still produces incorrect output, even in a computerised system
C. Data entry errors are impossible in CAS
D. Only manual systems suffer from this issue
E. It refers only to hardware failure
Answer: B. GIGO means bad input still yields bad output.
19 Computerised systems remain vulnerable to:
A. Power/network outages and cybersecurity threats
B. Nothing at all
C. Only paper shortages
D. Only staff shortages
E. Only currency fluctuations
Answer: A. Outages and cyber threats remain risks.
20 An advantage of CAS relevant to compliance is:
A. Elimination of any need for audit
B. A detailed audit trail logging every entry
C. No user access controls needed
D. Complete anonymity of transactions
E. No requirement to retain records
Answer: B. A detailed audit trail supports compliance.
🖥️ Computerised Accounting Software
21 Typical features of accounting software include: (i) Voucher entry (ii) Automatic ledger posting (iii) MIS reports
A. (i) only
B. (i) and (ii) only
C. (iii) only
D. All of (i), (ii) and (iii)
E. None of these
Answer: D. All three are typical software features.
22 In banking specifically, accounting software functions are:
A. Run as a fully separate standalone package unrelated to CBS
B. Embedded directly within the Core Banking Solution (CBS)
C. Not used at all
D. Outsourced entirely to a third party with no bank oversight
E. Manually replicated on paper afterward
Answer: B. These functions are embedded within CBS.
23 User access controls in accounting software serve to:
A. Restrict who can view/modify data
B. Increase transaction processing time deliberately
C. Eliminate the need for passwords
D. Allow unrestricted access to all staff
E. Replace the need for a Chart of Accounts
Answer: A. Access controls restrict who can view/modify data.
24 Audit-trail logging in accounting software records:
A. Who made an entry, when, and what was changed
B. Only the final Balance Sheet figure
C. Nothing of significance
D. Only customer complaints
E. Only marketing campaigns
Answer: A. Audit trails log who, when, and what changed.
25 Setting up the Chart of Accounts is generally done:
A. Fresh, every single day
B. During initial configuration, then maintained/updated as needed
C. Only by the RBI
D. Only by the customer
E. Never, once the software is installed
Answer: B. It is configured initially and maintained thereafter.
🕰️ Computerisation in Indian Banking
26 The Rangarajan Committee reports on bank computerisation were submitted in:
A. 1969 and 1975
B. 1984 and 1989
C. 2000 and 2005
D. 2015 and 2020
E. 1947 and 1955
Answer: B. The Rangarajan Committee reported in 1984 and 1989.
27 Full-scale CBS rollout across Indian banks predominantly occurred in the:
A. 1960s
B. 1980s
C. 2000s
D. 1950s
E. It has not yet occurred
Answer: C. CBS rollout predominantly happened in the 2000s.
28 Bank computerisation in India was initially met with:
A. Universal, immediate acceptance with no resistance
B. Some resistance, including from employee unions
C. Complete rejection, with no adoption ever
D. No relevance to Indian banking at all
E. Mandatory adoption within one week nationwide
Answer: B. There was some initial resistance, including from unions.
29 Today, the proportion of Indian bank branches on CBS is:
A. Less than 10%
B. About 50%
C. Virtually 100%
D. 0%, CBS was discontinued
E. Only foreign bank branches use CBS
Answer: C. Virtually all branches are on CBS today.
30 CBS adoption directly enabled:
A. "Anywhere Banking" and digital channels
B. The permanent closure of all bank branches
C. The elimination of RBI supervision
D. A return to purely manual bookkeeping
E. No change in customer experience
Answer: A. CBS enabled Anywhere Banking and digital channels.
🧩 Core Banking Components
31 The single, live database for all branches resides at the:
A. Local branch server only
B. Central Server / Data Centre
C. Customer's personal device
D. RBI's headquarters exclusively
E. A paper-based archive
Answer: B. The Central Server/Data Centre hosts the live database.
32 Which of these are Core Banking components? (i) Network connectivity (ii) Peripheral channel integration (ATM/Internet/Mobile) (iii) Disaster Recovery site
A. (i) only
B. (i) and (ii) only
C. (iii) only
D. All of (i), (ii) and (iii)
E. None of these
Answer: D. All three are Core Banking components.
33 A Disaster Recovery (DR) site exists to:
A. Replace the need for a primary data centre entirely
B. Ensure business continuity if the primary data centre fails
C. Serve as the bank's marketing office
D. Store only paper records
E. House the bank's Board meetings
Answer: B. DR sites ensure continuity after a primary failure.
34 ATM switches, Internet Banking and Mobile Banking are examples of:
A. Peripheral channels integrated with the core banking application
B. Standalone systems unrelated to CBS
C. Manual accounting registers
D. Statutory returns
E. Audit reports
Answer: A. These are peripheral channels integrated with CBS.
35 The Core Banking Application primarily handles:
A. Only marketing campaigns
B. Account maintenance, transactions and reporting
C. Only HR functions
D. Only tax filing
E. Only physical security of branches
Answer: B. It handles accounts, transactions and reporting.
🔒 Information Security in Banking
36 The "CIA" triad in information security stands for:
A. Confidentiality, Integrity, Availability
B. Capital, Investment, Assets
C. Compliance, Inspection, Audit
D. Cash, Interest, Advances
E. Credit, Investment, Accrual
Answer: A. CIA = Confidentiality, Integrity, Availability.
37 RBI's Cyber Security Framework mandates every bank to have:
A. No formal policy of any kind
B. A Board-approved Cyber Security Policy and a Cyber Crisis Management Plan
C. Only a verbal understanding among IT staff
D. A policy reviewed once a decade
E. Reliance solely on third-party insurance
Answer: B. A Board-approved policy and crisis plan are mandated.
38 The overarching legal framework for electronic records and digital signatures in India is the:
A. Negotiable Instruments Act, 1881
B. Information Technology Act, 2000
C. Banking Regulation Act, 1949
D. Companies Act, 2013
E. RTI Act, 2005
Answer: B. The IT Act, 2000 governs electronic records/signatures.
39 A Business Continuity Plan (BCP) primarily ensures:
A. Operations can continue or resume quickly after a disruption
B. Permanent shutdown after any incident
C. No need for any backup systems
D. Elimination of all cyber risk permanently
E. Replacement of the Core Banking Application
Answer: A. BCP ensures quick continuity/resumption after disruption.
40 Encryption and firewalls primarily serve to:
A. Speed up marketing campaigns
B. Protect data in transit and block unauthorised network access
C. Replace the need for passwords entirely
D. Reduce the Chart of Accounts size
E. Eliminate the need for a DR site
Answer: B. Encryption/firewalls protect data and block unauthorised access.
🌐 Internet, WWW & Digital Banking's Influence
41 The "JAM Trinity" refers to:
A. Jan Dhan, Aadhaar, Mobile
B. Journal, Account, Master Ledger
C. Joint Accounts Management
D. Judicial Audit Mechanism
E. Just-in-time Asset Management
Answer: A. JAM = Jan Dhan, Aadhaar, Mobile.
42 UPI has primarily enabled:
A. Slower, costlier payments
B. Instant, low-cost peer-to-peer and merchant payments
C. The end of all digital payments
D. Only cross-border remittances
E. Only cash transactions
Answer: B. UPI enables instant, low-cost payments.
43 "Open Banking" / API Banking refers to:
A. Banks exposing services via APIs to enable fintech integration
B. Keeping all banking systems fully closed to outside developers
C. A type of manual ledger
D. A statutory audit requirement only
E. A form of physical branch banking
Answer: A. Open Banking exposes services via APIs.
44 A direct consequence of internet/mobile banking growth has been:
A. Increased branch footfall for routine transactions
B. Reduced branch footfall for routine transactions
C. Complete elimination of cybersecurity concerns
D. No change in customer expectations
E. Return to purely manual bookkeeping
Answer: B. Routine-transaction branch footfall has reduced.
45 Rising digital banking adoption has made cybersecurity:
A. Irrelevant to bank management
B. A board-level strategic priority
C. Solely an IT department's concern, with no Board involvement
D. A one-time setup task, never revisited
E. Unrelated to customer trust
Answer: B. Cybersecurity has become a board-level priority.
🔁 Comprehensive Review
46 Which of the following best captures the overall evolution described in this module?
A. Manual books → ledger-posting machines → CBS → integrated digital channels
B. CBS → manual books → digital channels → ledger-posting machines
C. No evolution has occurred in Indian banking
D. Digital channels existed before any accounting system
E. Ledger-posting machines replaced CBS after 2010
Answer: A. This is the correct chronological evolution.
47 A well-designed Chart of Accounts, combined with proper codification, primarily supports:
A. Consistent classification and easy retrieval of transactions
B. Elimination of the need for any audit
C. Manual re-entry of every transaction
D. Removal of user access controls
E. Slower report generation
Answer: A. It supports consistent classification and retrieval.
48 A Disaster Recovery site is typically located:
A. In the exact same building as the primary data centre
B. At a geographically separate location
C. Inside the branch manager's office
D. On a single employee's personal laptop
E. It is not needed at all
Answer: B. DR sites are geographically separate for genuine resilience.
49 For an exam-taker, the key link between "Computerised Accounting" and "Core Banking Systems" is that:
A. They are entirely unrelated concepts
B. CBS is the specific banking implementation of computerised accounting, centralised across all branches
C. Core Banking Systems predate all forms of accounting
D. Computerised accounting applies only outside banking
E. CBS eliminates the need for any accounting records
Answer: B. CBS is computerised accounting's centralised banking form.
50 For JAIIB purposes, the single biggest transformation CBS brought to Indian banking is:
A. A return to purely branch-based, disconnected record-keeping
B. A centralised, real-time system enabling Anywhere Banking and integrated digital channels
C. The complete removal of RBI's regulatory role
D. Elimination of the need for any Information Security measures
E. No meaningful change to customer experience
Answer: B. CBS's centralised, real-time nature enabled Anywhere Banking.
Disclaimer: This article is prepared for educational and exam-preparation purposes only. Content reflects established banking technology practice and RBI's Cyber Security Framework, as of September 2026. Candidates should cross-check the latest official IIBF syllabus and current notifications before the exam.