Introduction of  Input& Output      

Welcome to the introduction of input and output. This pages will especially helpful for people who know nothing about input and output hardware and interested in learning about them. This page is also helpful for people who just need a basic knowledge regarding input and output hardware. 

Why is it important for librarians to have some knowledge about input and output hardware?  It helps when a librarian make a purchasing decisions. For example, if you are working at public library, you might want to consider about support for disability people. For example, to meets a blind person's  needs, you might consider to purchase the voice typing software for your library. Therefore,  having knowledge of input and output hardware help you, as a librarian, especially when when you consider the needs of clients in library. What kind of printer are there available in market ? How does it work? Does it useful for in this particular library? and so on. 

 

1    What is Input Hardware ?

Input Hardware consists of devices that translate data into a form the computer can process. Various devices are used to input data for processing by the computer. Here are  example of Input devices.

2    What is Output Hardware? 

Output Hardware consists of devices that translate information processed by the computer into a for that humans can understand. An output device, such as a printer, provides a means by which information held in the computer can be displayed in human-readable form. Here are example of Output devices.

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