emulation
Refers to the ability of a program or device to imitate another program or device. Many printers, for example, are designed to emulate Hewlett-Packard LaserJet printers because so much software is written for HP printers. By emulating an HP printer, a printer can work with any software written for a real HP printer. Emulation tricks the software into believing that a device is really some other device.
Communications software packages often include terminal emulation drivers . This enables your PC to emulate a particular type of terminal so that you can log on to a mainframe.
It is also possible for a computer to emulate another type of computer. For example, there are programs that enable an Apple Macintosh to emulate a PC.
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- Encapsulation
(1) In programming, the process of combining elements to create a new entity. For example, a procedure is a type of encapsulation because it combines a series of computer instructions. Likewise, a complex data type, such as a record or class, relies on encapsulation. Object-oriented programming languages rely heavily on encapsulation to create high-level objects. […]
- encode
The phrase used to describe the method of preparing data for storage or transmission. Encoding data usually means redundancies are eliminated and complexity in the data is reduced. Compression algorithms are also based on one or more encoding methods.
- encoder
(1) A device or program that uses predefined algorithms to encode, or compress audio or video data for storage or transmission use.
- Encoding
(1) In computer technology, encoding is the process of putting a sequence of characters into a special format for transmission or storage purposes. (2) The term used to reference to the processes of analog-to-digital conversion, and can be used in the context of any type of data such as text, images, audio, video or multimedia.
- Encryption
The translation of data into a secret code. Encryption is the most effective way to achieve data security. To read an encrypted file, you must have access to a secret key or password that enables you to decrypt it. Unencrypted data is called plain text ; encrypted data is referred to as cipher text. There […]