The operating system and application software are stored locally in
flash ROM, so the machine can function in the absence of a network.
Flash ROM memory is typically used to store a PC's BIOS or an electronic
device's firmware, and allows limited reprogramming.
Local storage
resides in the computer's RAM, which is cleared when the machine is
switched off, thus removing any potential security risk from data theft
but also requiring a backup before the computer is switched off. This
can be done with a central server or, should a network not be available,
to a USB memory device, Onodera says. From the outside, the PC Parafield
looks like a standard B5-size laptop computer and its specifications
are fairly standard, except for the absence of a hard-disk drive. |
