none its logic
how many ports does com port have
Parallel ports typically have 25 or 36 pin ports. Serial ports, by contrast, have only 9 pins. Both type of ports have two rows of pins.
9=pins
There are four pins in a USB port. The positive, negative and Data positive, data negative.
yes, i agree with the statement that Parallel port is a bidirectional port.The original specification for parallel ports was unidirectional, meaning that data only traveled in one direction for each pin. With the introduction of the PS/2 in 1987, IBM offered a new bidirectional parallel port design. This mode is commonly known as Standard Parallel Port (SPP) and has completely replaced the original design.Bidirectional communication allows each device to receive data as well as transmit it. Many devices use the eight pins (2 through 9) originally designated for data. Using the same eight pins limits communication to half-duplex, meaning that information can only travel in one direction at a time. But pins 18 through 25, originally just used as grounds, can be used as data pins also. This allows for full-duplex (both directions at the same time) communication.
9
9
2 sockets
9
The PIC16F88 microcontroller has a total of 13 I/O pins that can be configured as user input or output ports. These pins are grouped into Port A, Port B, and Port C, with Port A having 6 pins, Port B having 8 pins, and Port C having 4 pins. However, the exact number of usable I/O pins can depend on the specific configuration and function requirements of the application.
A DVI port utilizes a 24-pin connector.
The traditional parallel port is a 25 "d-sub" connector. Serial ports come in two flavors, either 25 pin "d-sub" or 9 pin. USB (another serial communication standard) is a different animal. PS/2 is also a serial port and it has six pins.