Ky nang cong nghe can thiet nam 2026

Screenshots, PDFs, and file compression are daily tasks for most people. Learning these skills saves time and eliminates frustration.

Taking a screenshot is the single most useful tech skill — it lets you capture error messages, save receipts, and share visual information instantly.

PDF documents are everywhere — contracts, forms, invoices, and reports. Knowing how to edit, merge, sign, and convert PDFs without expensive software is a must-have skill.

Your smartphone contains your life — photos, messages, passwords, and payments. Proper device management protects your data and keeps your device running smoothly.

Regular backups are the single most important habit. If your phone is lost or broken, a backup means you lose nothing.

Browsers store a surprising amount of data — cached pages, cookies, browsing history, and saved passwords. Clearing this data periodically improves performance and protects privacy.

Strong passwords and two-factor authentication (2FA) are your first line of defense against hackers. Never reuse passwords across sites, and use a password manager.

For WiFi security, change your router's default password and use WPA3 encryption if available.

Modern productivity tools can dramatically improve your efficiency. From AI assistants like ChatGPT to QR codes and screen recording, mastering these tools puts you ahead.