Wednesday, 7th April 2021

What is Computer Data

Peggy Haas
 February 9, 2021

Computer data is any set of one or more alphabets or numbers. It is an ordered sequence of numbers, which can be represented graphically in a computer program language. Data is sometimes used in computing science and is the basis of numerical analysis and information systems. Datum in data is used to indicate the quantity of a variable. Datum refers to a single symbol for data.

There are different types of computer data definition, which are categorized according to their nature and purpose. In Text Files, the files are stored as text. Data in a spreadsheet is arranged and indexed in rows and columns. Data in a database is organized by logical schemas, making it easier for the queries to be executed against the database. Database file has a fixed structure that ensures that each row of the file corresponds to a corresponding column of the table.

Application-Specific Language (ASL) is another type of computer data definition. In ASL, the document's syntax is converted into a series of predefined keywords interpreted by the hardware and software programs. A typical example of an application-specific language is in the Windows operating system, where every program stored in the computer has a corresponding program language or DSL. Data is classified under a common heading in text documents. E.g., the word document, a spreadsheet, and a table are all classified under a document's common heading.

On the other hand, computer data storage is classified into various forms depending on its use. Computer data storage systems include hard drives, floppy disks, and tape drives. A hard drive stores data permanently. A floppy disk or tape drive merely provides temporary storage of data that is used frequently. Computer memory serves the purpose of storing data permanently as well.

Computer data can also be classified into logical and physical forms. Logical forms are contained in programs, and the CPU later references the data saved in them. Physical forms are generally stored in attached storage media such as a CD-ROM or a flash drive or nonvolatile memory such as a floppy disc.

Computer data storage requirements are determined by the computer's function, the CPU's speed, and the nature of its operations. Storage of large files is required by a CPU that processes large numbers of input data, while low-speed processing PCs need small file storage to cope with slow processing speeds. Data needs are further categorized according to the users and computer programs to run on them. Users of desktop computers mostly require more storage space than users of laptops. Laptops have much larger memory, but they can be easily fitted with a large hard drive if required. Since most user computers have both RAM and a hard drive, they are ideal for long-term data storage needs.

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