Not that the rest of the hardware is energy-hungry—inside the Ink Console there's a 32-bit microcontroller (pdf warning) with two cores, 512 kB of SRAM, 8 MB of pseudoSRAM, and 4 MB of flash memory.
For example, utility programs that perform a single function or that run in the background are often written as console apps. Batch processing programs that have no user interaction other than to ...