Category Archives: Notes

Notes for A+ Exams

DISPLAY CONNECTORS

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DLL

DLL Dynamic-link library (also written without the hyphen), or DLL, is Microsoft’s implementation of the shared library concept in the Microsoft Windows and OS/2 operating systems. These libraries usually have the file extension DLL, OCX (for libraries containing ActiveX controls), … Continue reading

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MEMORY CARD

A memory card or flash card is an electronic flash memory data storage device used for storing digital information. They are commonly used in many electronic devices, including digital cameras, mobile phones, laptop computers, MP3 players, and video game consoles. … Continue reading

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HDD (HARD DISK DRIVE)

A hard disk drive (HDD; also hard drive or hard disk) is a non-volatile, random access digital magnetic data storage device. It features rotating rigid platters on a motor-driven spindle within a protective enclosure. Data is magnetically read from and … Continue reading

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KEYBOARD

In computing, a keyboard is a typewriter-style keyboard, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches. A keyboard typically has characters engraved or printed on the keys and each press of a … Continue reading

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CABLE MODEM

A cable modem is a type of network bridge and modem that provides bi-directional data communication via radio frequency channels on a HFC and RFoG infrastructure. Cable modems are primarily used to deliver broadband Internet access in the form of … Continue reading

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