The most important terms for computers in German and English. No software can be run on the computer without the … A computer is a device that executes a program or programs. PC Glossary Definitions of Computer and Internet Terms. Applications, apps or programs can be thought of as electronic ‘tools’ for doing electronic jobs. The portion of a computer system that executes the instructions of a computer program. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z. Operating System – Windows. Common Computer Terms # The central processing unit or CPU, also known as the microprocessor or processor is the brain of the computer. These terms are often confused, although they have distinct meanings. The execution of the instructions within the computer system is very fast. It may have some malicious intent or … Basic Computer Terms and Definitions. The operating system (OS) is the software that communicates with the computer hardware. Hardware, software, programming, etc. It measures it in cycles of time and refers it to as megahertz. Computer terms, dictionary, and glossary. Hence, whenever someone buys a computer he/she becomes more conscious about the CPU and its capabilities. Browse through our list of over 15,000 computer terms and definitions using the above search, browsing by letter, or by clicking one of the links below. This is the place of computer data handling. CPU. A glossary of computer terminology Application (sometimes shortened to ‘app’) Computer software, also known as a ‘program’ or ‘app’ that performs a task or set of tasks, such as word processing or drawing. Moreover, it does all the data manipulation, calculations and formatting data for output. Virus, Spyware, Trojan, Worm, Malware. That’s why the ‘M… The term personal computer properly refers to any desktop, laptop, or notebook computer system. Its use is inconsistent, though, and some use it to specifically refer to x86 based systems running MS-DOS , MS-Windows , GEOS , or OS/2 . CPU means ‘Central Processing Unit’. Computer. A virus is a piece of software that can copy itself and which attaches itself to some other program in order to survive and replicate.