[DanL911sc]

From How I bought used voting machines on the Internet (an oldie but a goodie):

"The AVC Advantage can be easily manipulated to throw an election because the chips which control the vote-counting are not soldered on to the circuit board of the DRE. This means the vote-counting firmware can be removed and replace with fraudulent firmware. Under the sheet-metal panel (the "CPU cover"), I found the circuit board containing computer chips, other electronic chips, and four chips that--unlike most of the chips on the circuit board which are soldered in place--are mounted in sockets so that they can be removed and replaced. These are ROM (read-only memory) chips that hold the computer program (firmware) that operates the voting logic. These chips are not held in place by any seals. They can be removed using an ordinary screwdriver and they (or other ROM chips containing other firmware) can be replaced simply by pressing them into place. You can see the ROM chips in the picture above; they have the white labels pasted onto them, and you can see me in the process of prying one loose with a screwdriver. "