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ICT (What does an OS do? (The operating system acts as an intermediary…
ICT
What does an OS do?
The operating system acts as an intermediary between programs and the computer hardware, although the application code is usually executed directly by the hardware and frequently makes system calls to an OS function or is interrupted by it.
GUI Features
They are much easier to use for beginners
They enable you to easily exchange information between software using cut and paste 'drag and drop'
They use a lot of memory and processing power. It can be slower to use than a command-line interface if you are an expert user
They can be irritating to be experienced users when simple tasks require a number of operations
CLI
A command line interface allows the users to interact with the computer by typing in commands. The computer displays a prompt, the user keys in the command and presses enter or return.
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Security
OS Security refers to specified steps or measures used to protect the OS from threats, viruses, worms, malware or remote hacker intrusions.
OS Security may be approached in many ways, including adherence to the following:
Performing regular OS patch updates
Installing updated antivirus engines and software
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Disk Organisaation
Disk formatting is the process of preparing a data storage device such as a hard disk drive, solid-state drive, floppy disk or USB flash drive for initial use.
System Maintenance
System maintenance is an umbrella term that encompasses various forms of computer maintenance needed to keep a system running. The two main components of system maintenance are preventive and corrective maintenance.
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