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Definition of Data Classification of Means of Transmitting Meaning of Information Information THEME 2: Basic Computing THEME 5: Tools for Processing Direct Access Storage Device (DASD) •. Processing of Data Files - Input/Output. Control System (lOCS). Definition . .What is Data Processing? Data processing is simply the conversion of raw data to meaningful information through a process. Data is technically manipulated to Data procesing refers to the transformating raw data into meaningful output. Data Input- the collected data is converted into machine-readable form by an like people, procedures and devices to convert the data into information. Data Hierarchy. Data and information are stored in computer files for processing In this unit, we will introduce you to computers for data processing - a brief introduction to hardware and software, data processing and how to use a computer