Pen pal. For other uses, see Pen Pals (disambiguation). Adopt a School Program, connecting Iraqi schools with U.S. schools to help with supplies and start a pen pal program. Pen pals (or penpals, pen-pals, penfriends or pen friends) are people who regularly write to each other, particularly via postal mail.
Shoot 'em up (also known as shmup or STG) is a subgenre of the shooter genre of video games. In a shoot 'em up, the player character engages in a lone assault, often in a spacecraft or aircraft, shooting large numbers of enemies while dodging their attacks.
Answered by The Community. Making the world better, one answer at a time. Latch-up in short is defined as the creation of a low impedance path between the power supply rails by the triggering of parasitic, four-layer bipolar structures (SCRâs) inherent in CMOS technology.