Pt 01 introduction
- 1. 3/26/2014 1 Platform Technologies What is Platform? • A computing platform is, in the most general sense, whatever pre-existing environment a piece of software is designed to run within, obeying its constraints, and making use of its facilities. • platform is any base of technologies on which other technologies or processes are built. What it contains? • Typical platforms may include – A hardware architecture – An operating system (OS) and – Runtime libraries. “It could be the combination of all or at least one of it”
- 2. 3/26/2014 2 Examples • Probably the most familiar platform is Microsoft Windows running on the x86 architecture. • Macintosh, custom Apple Computer hardware and Mac OS operating system, now migrated to x86. • Android is an operating system based on the Linux kernel Hardware Architecture • A set of disciplines that describes a computer system by specifying its parts and their relations provides physical environment. • Types – Commodity computing platforms – Video game consoles – RISC – Midrange computers – Mainframe computers – Supercomputer Software Frameworks • An abstraction in which software providing generic functionality can be selectively changed by additional user-written code. • It is an universal, reusable software platform to develop software applications, products and solutions.
- 3. 3/26/2014 3 Examples • The Java platform is a virtual machine platform which runs on many operating systems and hardware types. Operating Systems • A collection of software that manages computer hardware resources and provides common services for computer programs. • The operating system is an essential component of the system software in a computer system. • Application programs usually require an operating system to function. Examples