Computer Awareness Basics for Banking & SSC Exams

Basic computer awareness for banking and SSC exams. FUNDAMENTALS • CPU – Central Processing Unit (the "brain" of the computer) • RAM – Random Access Memory (temporary, volatile) ; ROM – Read Only Memory (permanent) • Input devices: keyboard, mouse, scanner ; Output devices: monitor, printer, speaker • 1 Byte = 8 bits ; 1 KB = 1024 Bytes ; 1 MB = 1024 KB ; 1 GB = 1024 MB SOFTWARE • System software: the Operating System (Windows, Linux, macOS, Android) • Application software: MS Word, Excel, web browsers • Example of an open-source OS: Linux INTERNET & WEB • WWW – World Wide Web ; HTTP – HyperText Transfer Protocol • Web pages are written in HTML • URL – Uniform Resource Locator • In an email address, "@" separates the user name from the domain COMMON SHORTCUTS • Ctrl + C copy, Ctrl + V paste, Ctrl + X cut, Ctrl + Z undo • Ctrl + S save, Ctrl + A select all, Ctrl + P print Abbreviations: PDF (Portable Document Format), USB (Universal Serial Bus), GUI (Graphical User Interface). Revise these before bank/SSC computer sections and practise on Govt Exam Center.