Computer addiction is a loosely used term for the excessive use of computer

Computer

A computer is a programmable machine designed to sequentially and automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem...

s to the extent that it interferes with daily life. Excessive use may explain problems in social interaction, mood, personality, work ethic, relationships, thought processes, or sleep deprivation

Sleep deprivation

Sleep deprivation is the condition of not having enough sleep; it can be either chronic or acute. A chronic sleep-restricted state can cause fatigue, daytime sleepiness, clumsiness and weight loss or weight gain. It adversely affects the brain and cognitive function. Few studies have compared the...

.
The Diagnostic and Statistical Manual of Mental Disorders does not include a diagnosis for such a disorder.

The term computer addiction originated long before the Internet.

Some people develop bad habits in their computer use that cause them significant problems in their lives.