Basic Computer Knowledge
The computer section is elementary but scoring: hardware and software basics, memory units, word processing and spreadsheet operations, internet and email use, shortcut keys, and awareness of the digital tools an anganwadi now uses, such as the POSHAN Tracker and ICDS-CAS mobile applications.
Fundamentals
- Input devices: keyboard, mouse, scanner, microphone. Output: monitor, printer, speaker.
- RAM is volatile working memory; ROM is non-volatile and stores start-up instructions.
- Memory units: 8 bits = 1 byte; 1024 bytes = 1 KB; 1024 KB = 1 MB; 1024 MB = 1 GB; 1024 GB = 1 TB.
- Software: system software (operating system) versus application software (Word, Excel).
Common shortcuts
Ctrl+C copy, Ctrl+V paste, Ctrl+X cut, Ctrl+Z undo, Ctrl+Y redo, Ctrl+S save, Ctrl+P print, Ctrl+F find, Ctrl+A select all. In Excel, Alt+= inserts AutoSum and F2 edits a cell.
Internet and email
A URL identifies a web page; email needs a valid address with @ and a domain; attachments should be small and virus-checked. Data entered in the POSHAN Tracker must be accurate because it drives national nutrition reporting.
Worked example
Arrange in increasing order: 1 GB, 1 MB, 1 KB, 1 TB. Reasoning: each step is 1024 times the previous unit, so the order is 1 KB < 1 MB < 1 GB < 1 TB.
Traps that cost marks
Treating 1 KB as 1000 bytes (in this exam's convention it is 1024); confusing RAM with hard-disk storage; and mixing Ctrl+S (save) with Ctrl+P (print).