First, what does input output mean anyway? Input output in the information technology world refers to any machine, operation or program that will permit data to be sent either from a computer to a peripheral device and vice versa. Hence, there is an input of data into one component and an output of data from another component. For example, a mouse and the keyboard of the personal computer serve as input-only components of your computer while printers would be considered output-only components. A combination input-output IT component would be a writeable CD-ROM since you can write data on it (the input) and read data from it (the output.)
To define an input output manager, it pertains to the input/output (I/O) source object which is responsible for moving data from the source to the I/O conduit. This I/O manager will have to outrightly own the output source object, develop then own the conduit source object, organize output data prior to delivering it to the conduit (should that be necessary); and managing input data so that it heads for the right destinations within the system. If the conduit has a two-way function, that means the I/O manager should define both the Read and Write functions.
Thus, we can say that the ITIL® input output managers exam is one of the certification exams for ITIL® that are concerned with information and skills in the input output managers system. The information that has to be assessed would be knowledge about what are input output managers by definition and how to implement the use of input output managers. The ITIL® Certificates are prerequisites for you to become certified as a specialist in IT Service Management, based on the guidelines of the ITIL® of the UK GOC. People who have been certified using previous versions of the ITIL® have to upgrade their qualifications to the current ITIL® v3 level to keep updated.
To gain appropriate ITIL® certification, you have to progress through different stages of certification. At present, ITIL® v3 encompasses 5 major manuals, namely 1. Service Strategy; 2. Service Design; 3. Service Transition; 4. Service Operation; and 5. Continual Service Improvement.