| Subject | English | Czech |
| comp., MS | CAPS LOCK key | klávesa Caps Lock (A toggle key that, when on, shifts the alphabetic characters on the keyboard to uppercase) |
| comp., MS | Key lock | Zámek klávesnice (An option that locks the keypad to avoid accidental key presses) |
| comp., MS | key range lock | zámek rozsahu klíčů (A lock that is used to lock ranges between records in a table to prevent phantom additions to, or deletions from, a set of records. Ensures serializable transactions) |
| construct. | lock key | klíč k zámku |
| comp., MS | SCROLL LOCK key | klávesa Scroll Lock (On the IBM PC/XT and AT and compatible keyboards, a key on the top row of the numeric keypad that controls the effect of the cursor control keys and sometimes prevents the screen from scrolling. On the enhanced and Macintosh keyboards, this key is to the right of the function keys on the top row. Many modern applications ignore the Scroll Lock setting) |