Page break 
Page-description language (PDL) 
Page down key (PgDn) 
Pages per minute (ppm) 
Page preview 
Page printer 
Page setup 
Page up key (PgUp) 
Paintbrush/Paint 
Paint program 
Palette 
Palmtop computer 
Parallel port 
Parameter 
Parent folder 
Partition 
Password 
Paste 
Paste Special 
Patch 
Path (1) 
PATH (2) 
PC 
PC-compatible 
PCI 
PCL 
PCM 
PCMCIA 
PCX file 
PDA 
PDL 
Pentium 
Peripheral 
Permanent swap file 
Personal computer 
Personal digital assistant 
Personalizing 
Perspective 
PgDn 
PgUp 
Phase alternation line 
Phone dialler 
Phoneme 
Phono connector or RCA connector 
Phosphor 
Phosphor dots 
PhotoCD 
Photorealistic 
Phototypesetter 
Pica 
Picture element 
PIF 
Pincushion distortion 
PING 
Pipelining 
Pitch 
Pixel 
Plane 
Plasma display 
Platform 
Platform independence 
Play back 
Playback head 
Playback rate scale factor 
Plug and Play 
Plug-compatible 
Point 
Point of presence 
Pointer 
Pointing device 
Polygon 
POP 
Pop-up menu 
Pop-up window 
Port 
Portable 
Portrait 
PostScript 
Power management 
Power user 
PowerPC 
ppm 
PPP 
Pre-emptive multi-tasking 
Pre-scan 
Presentation graphics 
Presentation Manager 
Presentation software 
Preview 
Primitive 
Print 
Print control code 
Print job 
Print life 
Print modifiers 
Print preview 
Print queue 
Print Screen key 
Print server 
Print spooling 
Printer 
Printer buffer 
Printer control language 
Printer driver 
Printer emulation 
Printhead 
Printout 
PRN (printer) 
Processor 
Profile 
Program 
Program group 
Program icon 
Program information file (PIF) 
Program instruction 
Program Manager 
Programming language 
Programs menu 
Prompt 
Properties 
Proportional spacing 
Protected mode 
Protocol 
PrtSc 
Public domain (PD) 
Publish 
Pull-down menu 
Pulse-code modulation (PCM) 
Pulse dialling 
Purge 
Push-button