Operating Systems Flashcards
What are the 4 components of a Computer System?
- Hardware
- Operating System
- Application programs
- Users
What does the ‘Kernel’ run?
- CPU
- Memory
- Peripheral devices
What is Cache Memory?
Small, fast memory used to hold selected data
*What does ‘CPU’ stand for?
Central Processing Unit
*Define ‘CPU’
Is the primary functional component of a computer
*Define ‘Device Manager’
The section of the operating system responsible for controlling the use of other devices
*What is ‘Firmware?’
Software instructions/ data stored in a fixed way. Built into the computer to make its operation simpler for the user to understand
What’s a ‘Hybrid System?’
Computer system that supports both batch and interactive processes
*What does ‘K’ stand for?
Kilobyte
*What is a ‘Kilobyte?’
A unit of memory or storage space
What is ‘Network Manager’?
Part of the operating system responsible for controlling access to and the use of networked resources
What does ‘OS’ stand for?
Operating system - The software that manages all the resources of a computer system
*Define ‘Server’
A node that provides to clients various network services, like printing or database access services
Define ‘Software’
A collection of programs used to perform certain tasks
*What are the three main categories for software?
- Operating system programs
- Compilers and assemblers
- Application programs
Define ‘Storage’
A place where data is stored in the computer system
*Define ‘Virtualization’
The creation of a virtual version of hardware or software
What does an operating system allow virtualization to do?
Allows a CPU to run multiple operating system images at the same time
*What does ‘GUI’ stand
Graphical user interface
*Define ‘GUI’
A software program that uses icons, menus and other visual components to interact with and control a computer’s resources
What is ‘Virtual Memory?’
A technique that allows programs to be executed (even though they aren’t entirely stored in memory)
*What is a ‘Processor?’
Synonym for CPU - Any component in a computing system capable of performing a sequence of activities
*What is ‘Java?’
A cross-platform programming language
What is a ‘Multi-core Processor?’
A computer chip that contains more than a single central processing unit
