구차니의 잡동사니 모음

Crystal oscillator types and their abbreviations:

• ATCXO — Analog temperature controlled crystal oscillator
• CDXO — Calibrated dual crystal oscillator
• DTCXO — Digital temperature compensated crystal oscillator
• EMXO — Evacuated miniature crystal oscillator
• GPSDO — Global positioning system disciplined oscillator
• MCXO — Microcomputer-compensated crystal oscillator
• OCVCXO — oven-controlled voltage-controlled crystal oscillator
• OCXO — Oven-controlled crystal oscillator
• RbXO — Rubidium crystal oscillators (RbXO), a crystal oscillator (can be an MCXO) synchronized with a built-in rubidium standard which is run only occasionally to save power
• TCVCXO — Temperature-compensated voltage-controlled crystal oscillator
• TCXO — Temperature-compensated crystal oscillator
• TMXO - Tactical miniature crystal oscillator[71]
• TSXO — Temperature-sensing crystal oscillator, an adaptation of the TCXO
• VCTCXO — Voltage-controlled temperature-compensated crystal oscillator
• VCXO — Voltage-controlled crystal oscillator

Legacy port status and USB

Today's laptops frequently do not include PS/2 ports and so the port is now regarded as a legacy port on Wintel, having been superseded by USB. Many current keyboards and mice support both USB and PS/2 with a simple wiring adapter and active adapters are available which plug into a USB port and provide a pair of PS/2 ports (active adapters in the other direction are very rare). PS/2 ports however, can still be found on modern desktop computer motherboards, although a few newer motherboards have no PS/2-port or only the keyboard port, but most still have them. These PS/2 ports cause fewer problems when KVM switching with non-Wintel systems.