Software
Software (Computer Software)program that is designed for the Windows operating system will only work for that specific operating system. Compatibility of software will vary as the design of the software and the operating system differ. Software that is designed for Windows XP may experience a compatibility issue when running under Windows 2000 or NT.
Software is capable of performing many tasks, as opposed to hardware
which only perform mechanical tasks that they are designed for. Software
is the electronic instructions that tells the computer to perform a
task. Practical computer systems divide software systems into two major
classes:
- System software: Helps run computer hardware and computer system itself. System software includes operating systems, device drivers, diagnostic tools and more. System software is almost always pre-installed on your computer.
- Application software: Allows users to accomplish one or more tasks. Includes word processing, web browsing and almost any other task for which you might install software. (Some application software is pre-installed on most computer systems.)
view of a very simple decision algorithm that could be programmed
Software is generally created (written) in a high-level programming
language, one that is (more or less) readable by people. These
high-level instructions are converted into "machine language"
instructions, represented in binary code, before the hardware can "run
the code". When you install software, it is generally already in this
machine language, binary, form.
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