Hi Asif — good question. A 1,000+‑page A3 Word file can be usable on a modern PC, but you’ll get the smoothest experience with a machine that emphasizes memory, fast storage, and a CPU with good single‑thread performance — and by changing some Word settings and workflow (split into subdocuments, Draft view, etc.. Below I give a practical spec (desktop and laptop examples), why each part matters, and the Word tweaks that will make a big difference.
Short summary (best balance)
- Use Windows 11 64‑bit + 64‑bit Office (Word).
- CPU: modern mid‑to‑high tier with strong single‑core boost (e.g., current Intel Core i5/i7 or AMD Ryzen 5/7).
- RAM: 32 GB minimum; 64 GB if you have lots of high‑resolution images, tracked changes, embedded...