Here is the circuit diagram of Electronic code lock system using 8051 microcontroller. It is very useful at residential places to ensure better safety. This system demonstrates a circuit named ...

So a guy was let go. I thought I knew his password but after a few attempts I started getting this system lock PIN. Searching the Net only finds reference to locking via iCloud but maybe too many ...

To keep our system safe from prying eyes, it is essential to restrict users’ access by locking down the system. Windows by default feature a lock system, however, it can be easily unblocked with a ...

Chris Welch is a former senior reviewer who worked at The Verge from 2011 until May 2025. His coverage areas included audio (Sonos, Apple, Bose, Sony, etc.), home theater, smartphones, photography, ...

Windows users can easily lock their computer when they step away by hitting Win+L; on the Mac, there's no default keyboard-friendly system lock shortcut. Quick tip site One Thing Well offers a simple, ...

An icon in the shape of a lightning bolt. Impact Link When you share a computer with other people, privacy can be a complicated matter. Even if you trust the other users, there are some things that ...

This is a simple password based door locking system circuit designed using 8051 microcontroller. It provides control to the actuating the load. It is a simple embedded system with input from the ...