We all might have hazy memory of this stuff, but ever wondered what are these ports for? See first the list of ports below then make your intelligent guesses on what they do. Parallel ports were the alternative to “serial ports” because of their faster data transmission speeds in a parallel fashion. [caption id="attachment_300370" align="aligncenter" width="275"] A Line Print Terminal (LPT) Port[/caption] Serial port (also known as RS-232). In contrast with parallel ports, “serial ports” provide slower data transmission speeds as it sends data bits by bits at a time. Also known as RS-232 port, serial ports were the standard for early computers to connecting mouse, modems, security cameras, and other peripherals. A serial port uses 9-pin D-shaped male connectors which executes ‘serial connection.’ Due to its slower speeds, it was superseded by USB on desktop computers. Fortunately, USB-to-serial port adapters are still available to establish connections between new and old peripherals. Read more in our articles including "What are These Ancient PC Ports For?" and "Blogger-Friendly Airports".
(LPT, Serial RS232, PS2, Firewire, RJ45, SCSI, VGA, AT) You may have already seen them…
Feb 23, 2022In my travels abroad in the last three years, I’ve gone thru dozens of airports…
Dec 7, 2008
A new school year means new projects, research papers, presentations, and online learning tasks. Whether…
Jun 14, 2026
Inflation is now (May 2026) at 7.2%, electricity rates at Php14.33/kWhr, and gas prices through…
May 28, 2026
GCash has expanded its in-app help tools and security features to address a growing number…
May 22, 2026
Smartphones today can handle all the basics. The real difference now is how well a…
Apr 30, 2026We all might have hazy memory of this stuff, but ever wondered what are these ports for? See first the list of ports below then make your intelligent guesses on what they do.
Parallel ports were the alternative to “serial ports” because of their faster data transmission speeds in a parallel fashion. [caption id="attachment_300370" align="aligncenter" width="275"] A Line Print Terminal (LPT) Port[/caption] Serial port (also known as RS-232). In contrast with parallel ports, “serial ports” provide slower data transmission speeds as it sends data bits by bits at a time.
Our coverage of what is serial port includes: "What are These Ancient PC Ports For?"; "Blogger-Friendly Airports"; "Best Budget Tablets for Back-to-School 2026 | Under P10,000". Each article provides unique insights and information.