COMPUTER HARDWARE COMPONENTS FUNCTIONS
WHAT IS A COMPUTER SYSTEM UNIT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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TRUE
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FALSE
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Either A or B
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None of the above
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Detailed explanation-1: -Ad Hoc Network and File Sharing. Before local-area networks or the Internet become widely used, the 9-pin outlet provided a way for your PC to sync or share files with another computer.
Detailed explanation-2: -A serial port on a PC is a male 9-pin connector (DE-9 D-sub). Early PCs had two 9-pin connectors or one 9-pin and one 25-pin (DB-25). On a PC, serial ports are called “COM ports, ” identified as COM1, COM2, etc. See COM1 and D-sub connectors.
Detailed explanation-3: -Use these pin connections for 9-pin RS-232 and RS 423 port to 9-pin RS-232 and RS-423 port cables. Both plugs are male.
Detailed explanation-4: -The term “DB9” refers to a common connector type, one of the D-Subminiature or D-Sub types of connectors. DB9 has the smallest “footprint” of the D-Subminiature connectors, and houses 9 pins (for the male connector) or 9 holes (for the female connector).