These official PDFs (or e-pubs) cost roughly ₹150–₹300 (approx. $4 USD) – a fraction of the exam fee. Paying for the official version ensures you get the latest edition (e.g., 5th or 6th edition) with updated questions on and MS Office 2021/365 .
: Detailed studies on computer systems, central processing units (CPU), and input/output devices. Software & OS computer knowledge by disha publication pdf
Use the practice sets in the PDF. Time yourself strictly (e.g., 15 minutes for 50 computer questions). The Disha PDF mirrors the actual speed required for SBI Clerk Mains. These official PDFs (or e-pubs) cost roughly ₹150–₹300
: Basics and advanced concepts of Operating Systems (OS), including process control structures and threads. Networking & Security central processing units (CPU)