Computing •
.pps, or PowerPoint Show, a file format used by the Microsoft PowerPoint presentation software •
Packets per second, a measure of throughput •
PPS.tv, Chinese peer-to-peer streaming video network software •
Programmable power supply •
Proofpoint Protection Server, a commercial product to detect and quarantine spam •
Pulse per second signal, in the Network Time Protocol
Medicine •
Parkinson plus syndrome, a group of neurodegenerative diseases •
Pentosan polysulfate, a drug used to treat interstitial cystitis •
Popliteal pterygium syndrome, an inherited condition affecting the face, limbs, and genitalia •
Post-polio syndrome, a condition that affects some people who have previously survived an acute attack of poliomyelitis •
Puppy pregnancy syndrome, a delusional illness in humans
Military technology and weapons •
Precise Positioning Service, a military Global Positioning System feature •
PPS submachine gun, a Soviet WWII-era submachine gun •
Walther PPS, a compact semi-automatic pistol
Organic chemistry •
Poly(p-phenylene sulfide), a thermoplastic polymer •
PPS film capacitor, with a polyphenylene sulfide dielectric •
PPS Silent Surfactant, a cleavable detergent in biochemistry
Other science and technology •
Portable power station ==Other uses==