PNG ICO ICNS MORE
Desktop apps
Glyph
Ourea Icons
Computer
Black
256x256
Flat
Circular icon set
Smooth
Shiny Icon Set
monitor, Computer, screen
64x64
3D
Flat for Linux
Apple, pro, Laptop
mini, Cd, hardware
Office General Icons
Computer, screen, monitor
Farm-fresh
Computer, Go
32x32
Mac OS X style
mac, Apple, Laptop
512x512