Contamination occurs everywhere including environment and all its objects. The presence of viable pathogenic bacteria on inanimate objects has been reported by earlier investigators. Several studies of the human environment have demonstrated colonization and contamination of objects such as door handles, farcuts, phones, money, fabrics and plastics (Oluduro et al., 2011).

Computer has been described as the latest technological media which is capable of receiving and accepting data and performing operation according to instruction (program) and producing result of the operation with great speed and accuracy (Brightman and Dunsdalc, 1986).

The speed of operation of computer has made its appreciation in different fields such as health, education, research and finance institutions inevitable (Onasanya, 2002). The inevitability of the computer in most of the identified fields has been a major factor for the continuous proliferation of computer usuage in all of these fields. computers continue to have an increased presence in almost every aspect of our occupational, recreational and residential environments (Anderson and Palombs, 2009).

 In various university environments, students have indicated 100% access to computers, 92.19 regularly use internet and 73.3% regularly use e.mail (Palmer and Bray, 2001). Keyboards are one of the most open parts of the computer which are used on daily basis in accomplishing various computer tasks in almost every aspect of our society and therefore they show 100% contamination. Their use have greatly expanded can be found in schools, banks, cybercafés, offices and hospitals. Also, contamination of keyboard by bacteria with the potential to initiate an infection has been documented by some investigators (Elfablawy and Ejhifnawi, 2009; Hartman et al.,2004; Neely and Sittig 2002).

The increased availability of multiple-user computers in the organization setting means that these items are handled by numerous users on a daily basis. Given that computers are not routinely disinfected, the opportunity for the transmission of contaminating micro-organisms is potentially great. This is not in the best interest of campus students especially that computer keyboards could spread significant number of pathogens (Enamuor et al, 2012).

Bacterial contamination of keyboards pose as a threat to public health as bacteria can be transferred from person to person by direct contact or indirect contact through an inanimate object  and back again.

There are many communities that come in contact with the keyboard. In general, the bacteria that lives on our skin, fingernails, hands and anywhere the hands have been are likely to transfer new bacteria over to the keyboard. In a place where there is a lot of people moving in and out especially in a cybercafé there is likely to be a good number of people that are sick and through them comes the new bacteria that will eventually settle on the keyboard through the air or form physical contact. Studies show that microbial contamination occur on computer surfaces located in a university setting and may reflect the multiple-user environment where the possibility of contamination by individuals who are carriers of bacteria such as staphylococcus aureus is greater and the isolation of usable micro-organisms suggest that the species present are able to persist for a period of time on these surfaces. (Anastisiades et al., 2009).