Some of the Most Common Tech Acronyms You Should Know: 1. CPU - Central Processing Unit 2. LAN - Local Area Network 3. Modem - Modulator-Demodulator 4. LED - Light Emitting Diode 5. LTE - Long Term Evolution 6. PDF - Portable Document Format 7. RAM - Random Access Memory 8. ROM - Read Only Memory 9. ISP - Internet Service Provider 10. URL - Uniform Resource Locator