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28 Cards in this Set
- Front
- Back
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Three things all software:
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-Has a job
-Manipulates data -Uses system resources |
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Three categories of software:
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-Document based
-Client/Server -Entertainment |
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What is an application?
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Installs different types of files
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What types of files do applications install?
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Binary files, configuration files, data files, resource files, etc.
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What does the Kernel do?
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Manages the hardware, provides a simple interface for other software to use
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What is a system call?
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Requests you can send to the kernel (open a file, allocate memory, etc)
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A kernel runs with _ access to the hardware.
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Unrestricted
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System software uses _ to communicate with hardware.
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Drivers
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How is multitasking accomplished?
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By time-sharing the CUP between multiple processes
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The Kernel keeps a _ for each process, and is responsible for scheduling the CPU
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PCB (Process Control Block)
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__ ___ is used to force user processes to release the CPU
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Clock Interrupt
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T or F: The kernel is a process
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True
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Memory is managed in 'chunks' called ___
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Pages
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What does Virtual Memory do?
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Virtual Memory swamps memory to disk to make more room
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___ are used to minimize delay when fetching data
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Caches
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What is thrashing?
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Thrashing is when a set of data is constantly swapped in and our of memory
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Disk is _
Memory is _ |
Slow
Fast |
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What is a file?
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A file is a set of saved binary data with a name
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What are files broken into?
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Blocks
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What is an inode?
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Where the filename and block numbers are stored
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The _ contains a list of the folder's contents
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File
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Folders are stored identical to _
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Files
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When does fragmentation happen?
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Fragmentation happens when files are stored throughout the disk
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What is defragmentation?
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Defragmentation happens when you reorder all of the files into file order
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Virtual Networking:
NAT |
The process of modifying IP address information in IP packet headers while in transit across a traffic routing device
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Virtual Networking:
Bridged |
Network bridging describes the action taken by network equipment to allow two or more communication networks
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Virtual Networking:
Host |
A network host is a computer connected to a computer network
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GUI or CLI?
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GUI: Graphical User Interface
CLI: Command Line Interface |
