Basic Computer and Digital Literacy
What this domain tests
The exam checks knowledge of computer parts and functions, operating-system basics, file management, common shortcuts, internet and email use, digital payments, and cyber safety.
Core ideas
- Hardware and software: hardware is physical equipment; software is the set of instructions. The CPU processes data, RAM is temporary working memory, and ROM or storage holds data when power is off.
- Input, output and storage: keyboard, mouse, scanner and camera are input; monitor, printer and speaker are output; hard disk, SSD, pen drive and memory card are storage.
- Operating system: manages hardware, runs applications, and organises files and folders. A file has a name plus an extension such as .docx, .xlsx, .pdf or .jpg.
- Shortcuts worth memorising: Ctrl+C copy, Ctrl+X cut, Ctrl+V paste, Ctrl+Z undo, Ctrl+S save, Ctrl+P print, Alt+Tab switch windows.
- Internet and email: a browser displays web pages; a URL is a web address; a search engine indexes pages. Email fields are To, Cc and Bcc.
- Cyber safety: never share an OTP or UPI PIN; use strong unique passwords; avoid banking on public Wi-Fi; check links before clicking; log out of shared computers.
Worked example
A trainee must email a fee reminder to 40 students who do not know one another. Putting all addresses in To exposes every address and invites reply-all clutter. Using Cc still exposes addresses. The correct field is Bcc: each recipient sees only their own address, and a short subject such as "Fee payment deadline - 15 March" plus one clear instruction keeps the message professional. Reasoning: the choice protects personal data and reduces errors, which is the digital-literacy point being tested.
Mark-losing traps
- Confusing RAM with permanent storage.
- Mixing up Ctrl+S (save) and Ctrl+P (print).
- Sharing an OTP because the caller claims to be from the bank.
- Clicking shortened links in unexpected messages.
- Using one simple password across accounts.