#computer ports

Maybe you saw them on your uncle’s friend’s office desktop, on some old traditional laptops, or somewhere in your local computer shops—that’s probably dissolved by now. We all might have hazy memory of this stuff, but ever wondered what are these ports for? Well, at some point I bet these common ports have served their purpose in the past, and surprisingly, some of these ports endured technological advancements still existing up to this date. See first the list of ports below then make your intelligent guesses on what they do. If you got it all correct -- either you must be very good at prediction or you’re very familiar of these computer stuff. This is not present in modern PCs anymore but back then, up to three parallel ports can be designated with LPT1 as default (consecutively LPT2, LPT3). Parallel ports were the alternative to “serial ports” because of their faster data transmission speeds in a parallel fashion. In contrast with parallel ports, “serial ports” provide slower data transmission speeds as it sends data bits by bits at a time. Read more in our articles including "What are These Ancient PC Ports For?" and "Best Budget Tablets for Back-to-School 2026 | Under P10,000".