Computer Knowledge
Computer Knowledge tests everyday digital literacy for bank and cooperative office work: hardware, software, operating systems, MS Office, internet and networking, databases, cyber security, and digital payment systems. Expect matching, true/false, shortcut keys and scenario questions rather than programming.
Core rules
- Basic computer cycle: input → processing → output; RAM is volatile working memory, ROM is non-volatile firmware storage.
- An operating system manages files, memory, devices and users; file extensions indicate type (.docx, .xlsx, .pdf, .exe).
- Common shortcuts: Ctrl+C copy, Ctrl+X cut, Ctrl+V paste, Ctrl+Z undo, Ctrl+S save, Ctrl+P print.
- Networking terms: IP address identifies a device; URL locates a resource; HTTPS encrypts browser traffic; firewall filters traffic.
- Payment rails: NEFT settles in batches, RTGS is real-time and for high-value transfers (minimum ₹2 lakh), IMPS is instant, UPI is a mobile overlay.
Worked example
A cooperative bank clerk must transfer ₹3 lakh urgently to another bank. Which rail is most appropriate? Reasoning: the amount exceeds the RTGS minimum of ₹2 lakh, and RTGS settles transaction-by-transaction in real time. NEFT would work but is batch-settled; IMPS has per-transaction limits. Answer: RTGS.
Traps
Calling RAM permanent; confusing phishing (fraudulent messages) with spam; assuming HTTPS guarantees a genuine site; mixing NEFT and RTGS thresholds; and forgetting that Ctrl+X removes the original while Ctrl+C does not. Read scenario questions for amount, urgency and channel.