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IBPS Clerk: Computer Aptitude for IBPS Clerk

IBPS Clerk · Work through your exam, one topic at a time.

All guide sections

Computer Aptitude for IBPS Clerk

IBPS Clerk Computer Aptitude appears in Mains inside “Reasoning Ability & Computer Aptitude” (50 questions, 60 marks, 45 minutes). Questions cover computer fundamentals, hardware and software, memory, operating systems, MS Office, internet and networking, database basics, cyber security, shortcut keys and binary/decimal conversion.

Core rules

  • Memory: 1 byte = 8 bits; 1 KB = 1024 bytes, then MB, GB, TB. RAM is volatile; ROM is non-volatile.
  • Generations: first generation used vacuum tubes, second transistors, third integrated circuits, fourth microprocessors, fifth AI.
  • Devices: keyboard, mouse and scanner are input; monitor and printer are output; primary memory is directly accessed by the CPU.
  • Networking: LAN is local, WAN wide; IP address identifies a device; DNS maps names to IP addresses; a router forwards between networks.
  • Office shortcuts: Ctrl+C copy, Ctrl+V paste, Ctrl+X cut, Ctrl+Z undo, Ctrl+S save, F12 Save As, Ctrl+P print.
  • Binary: multiply each bit by powers of 2 from the right.

Worked example

Convert 1101₂ to decimal. From the right: 1×2⁰ + 0×2¹ + 1×2² + 1×2³ = 1 + 0 + 4 + 8 = 13. So 1101₂ = 13₁₀. Check by reversing: 13 = 8 + 4 + 1 = 1101₂.

Traps

Using 1000 instead of 1024 for KB; confusing bit and byte; calling RAM non-volatile; mixing up Ctrl+Z and Ctrl+Y; treating “www” as a protocol; forgetting that binary place values start at 1, not 2.