Guys want to buy a sturdy old Apple Mac, would I be able to process images on this if I have an external hard drive?

PB 266Mhz Wallstreet 14.1 inch

Model No: APPLEG3PB266
The Apple Macintosh PowerBook G3/266, codenamed PDQ, features a 266 MHz PowerPC 750 (G3) processor, 64 MB of RAM, and a 3.2 GB hard drive in a sleek, black portable case with a 14.1 inch TFT color display. This model also has dual hot-swappable bays, a stereo speaker system, 2D/3D graphics acceleration, an fn key which creates a numerical keyboard, S-video output, and zoomed video support. The PowerBook G3 series leapfrogs all other portable systems in both speed and style.

Apple PowerBook G3 266Mhz
14.1 inch display
3.2Gb hard drive
64MB memory
CD drive
Modem
OS9.1