Computer Operating System Software Drivers
COMPUTER:
Computer Fundamentals
Computer Software and Hardware Fundamentals:
Fundamentals of computer software.
System Software
The software necessary to run the hardware parts of the computer and other software applications is called system software. System software acts as an interface between hardware and user applications.
Operating System (OS)
The system software that is responsible for the functioning of all parts of the hardware and their interoperability to carry out tasks successfully is called operating system (OS). The operating system is the first software that is loaded into the computer’s memory when the computer is turned on and this is called booting.
Language Processor
As discussed above, an important function of system software is to convert all user instructions into machine-understandable language.
• Machine level language: This language is nothing but a string of 0s and 1s that machines can understand. It completely depends on the machine.
• Assembly level language: This language introduces a layer of abstraction by defining mnemonics. Mnemonics are English-like words or symbols used to indicate a long string of 0s and 1s. For example, the word “READ”
High-level language: This language uses English-like statements and is completely machine-independent. Programs written in high-level languages are easy to create, read, and understand.
Device Drivers
The system software that controls and monitors the operation of a specific device on the computer is called a device driver.
Application software
Software that performs a single task and nothing else is called application software. Application software is highly specialized in its function and approach to solving a problem.
• Spreadsheet
• Presentation
Utility software
Application software that helps the system software do its job is called utility software.
• Antivirus software
• Disk management tools
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