A smartphone is a cell phone that lets you do more than make phone calls and send text messages. Smartphones can browse the Internet and run software programs like a computer. Smartphones use a touch screen to allow users to interact with them. There are thousands of smartphone apps including games, personal-use, and business-use programs that all run on the phone. The picture is an example of the Apple iPhone, one of the most popular smartphones available today.
A computer is a programmable device that stores, retrieves, and processes data. The term "computer" was originally given to humans (human computers) who performed numerical calculations using mechanical calculators, such as the abacus and Power Supply Unit (PSU) Pengertian FUngsi Jenis dan Perawatannya
slide rule. The term was later given to mechanical devices as they began replacing human computers. Today's computers are electronic devices that accept data (input), process that data, produce output, and store (storage) the results (IPOS).
Mobile applications are a move away from the coordinated programming systems for the most part found on PCs. All things being equal, each application gives restricted and isolated usefulness like a game, number calculator or mobile web browsing. Despite the fact that applications may have avoided performing multiple tasks due to the restricted equipment assets of the early cell phones, their explicitness is presently essential for their attractive quality since they permit purchasers to hand-pick what their gadgets can do.
electronics, branch of physics and electrical engineering that deals with the emission, behaviour, and effects of electrons and with electronic devices.
Electronics encompasses an exceptionally broad range of technology. The term originally was applied to the study of electron behaviour and movement, particularly as observed in the first electron tubes. It came to be used in its broader sense with advances in knowledge about the fundamental nature of electrons and about the way in which the motion of these particles
could be utilized. Today many scientific and technical disciplines deal with different aspects of electronics. Research in these fields has led to the development of such key devices as transistors, integrated circuits, lasers, and optical fibres. These in turn have made it possible to manufacture a wide array of electronic consumer, industrial, and military products. Indeed, it can be said that the world is in the midst of an electronic revolution at least as significant as the industrial revolution of the 19th century.