Slow PCs can cause extra stress and frustration in the workplace, according to a time management expert.

Relating to the subject of "computer rage", the act of hitting or damaging computers through frustration, it was stated that time spent waiting for a PC to boot up or a file to download can add to work-place stress.

According to a study by technology experts the TechGuys, frustration caused by PC inefficiency has led to almost one million computer monitors being broken.

Clare Evans, time management expert, said: "It's estimated that there are an extra 30 hours in a year that are spent waiting for PCs, which is a huge amount of time."

A spokesman for the TechGuys advised that an annual PC health check will mean that it will run to its optimum performance level.

Other findings from the research include that one in 20 people have got so frustrated waiting for a PC to work that they have hit something so hard that they hurt themselves.

According to a recent survey by Connect, the two biggest IT headaches for businesses were 'everyday hassles with IT' (37 per cent) and 'security concerns' (32 per cent) In a recent survey of SMEs for Connect, the two most important benefits of outsourcing were 'guaranteed response times' and 'allowing in-house IT staff to concentrate on more strategic issues'