Operating System and Word Processing
Operating System and Word Processing
This domain checks OS functions and practical word-processing operations. Expect questions on file management, keyboard shortcuts, formatting, and save/print options.
Core rules
- An OS manages processes, memory, files, devices and users; it provides a GUI or CLI. Examples: Windows, Linux, Android. A file name has a stem and extension; the extension suggests the program, e.g. .docx for Word, .txt plain text, .pdf fixed layout.
- In Word, Ctrl+B/I/U toggles bold/italic/underline; Ctrl+L/E/R/J sets left, center, right or justified alignment. Ctrl+Enter inserts a page break; F7 runs spelling and grammar. Ctrl+S saves; Save As creates a new name/location.
- Cut (Ctrl+X) removes to clipboard; copy (Ctrl+C) duplicates; paste (Ctrl+V). Undo is Ctrl+Z; redo is Ctrl+Y.
Worked example
A paragraph must be centered and saved under a new name. Select the paragraph, press Ctrl+E, then use File > Save As and choose .docx. Reasoning: Ctrl+E applies center alignment to the selected text; Save As changes the file identity, while Save overwrites the current file. If the paragraph were justified, Ctrl+J would align both edges.
Traps
Save is not Save As. Deleting a desktop shortcut does not delete the program. A page break starts a new page; a section break can change page setup. Ctrl+U underlines text, but in some dialogs it means underline; check context. .docx is editable, .pdf is not normally edited as text.