"Things were launching themselves from the ornate sunburst spires, glittering leech shapes made of shifting planes of light. There were hundreds of them, rising in a whirl, their movements random as windblown paper down dawn streets. "Glitch systems," the voice said."
neuromancercover - Credit: atrilogy
"Literally, a glitch is a spike or change in voltage in an electrical current" John Glenn (American Dictionary 4th ed. 2000), describing problems in the 1964 space programme as glitches.
A glitch is a short duration malfunction or electrical error common in electronics, computing, video games and circuit bending.
The aesthetics of the glitch can be mimicked by design tools and software as is this cover of Neuromancer by using the Satromizer app on the iPhone.