12 Questions
What are the color codes for PS/2 connectors?
Purple for mouse, green for keyboard
Why are PS/2 ports considered legacy ports?
They are no longer used in modern motherboards
Which port is often miscalled as DB-9 but is actually a DE-9 port?
COM Port
What is the main purpose of a parallel port or Centronics port?
Interface for printers and scanners
What is the primary reason behind developing the DE-9 port?
To replace DB-25 for serial communication
Why did many applications not require all the pins in the DB-25 port?
Because DB-25 had excessive pins for most applications
What is the main function of a computer port?
To act as a point of attachment for peripheral devices
What is another name for a computer port?
Communication Port
How is data transferred in a serial port?
One bit at a time over a single communication line
Which connector type is commonly associated with serial ports?
D-Sub connector
What type of communication involves transferring data in parallel using multiple lines?
Parallel communication
Which is an example of a peripheral device connected through a parallel port?
Printer
Study Notes
PS/2 Connectors
- PS/2 connectors have a 6-pin mini-DIN color code: green for keyboard, purple for mouse.
Legacy Ports
- PS/2 ports are considered legacy ports because they are outdated and have been replaced by newer technologies such as USB.
DE-9 Port
- The port often miscalled as DB-9 is actually a DE-9 port, which is a 9-pin serial port.
Parallel Port
- The main purpose of a parallel port or Centronics port is to connect devices such as printers.
- The primary reason behind developing the DE-9 port is to reduce the number of pins from the original DB-25 port.
DB-25 Port
- Many applications did not require all the pins in the DB-25 port, which led to the development of smaller ports.
Computer Port
- The main function of a computer port is to connect devices to a computer.
- Another name for a computer port is a computer interface.
Serial Port
- Data is transferred in a serial port one bit at a time through a single wire.
- The connector type commonly associated with serial ports is a DE-9 connector.
Parallel Communication
- Parallel communication involves transferring data in parallel using multiple lines, increasing the speed of data transfer.
Peripheral Devices
- An example of a peripheral device connected through a parallel port is a printer.
Learn about different computer ports and their functions which act as interfaces between the computer and peripheral devices. Understand the main role of computer ports in allowing data to flow between devices seamlessly.
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