3. Identifying OS Types & Features Flashcards
2 things that workstation refers to?
- Business client PC
- Powerful PC
What is the kernel?
low-level code that mediates access to system resources
i.e. CPU, RAM, & I/O devices
What is UNIX?
Trademark for a family of OSs
These OSs were orignally devloped at Bell Laboratories in the late 1960s
What is Linux?
Open-source OS kernel derived from UNIX
2 release models that Linux distros may use?
- Standard release model
- Rolling release model
How do Linux distros using standard release models work?
Using versioning to distinguish between updates
Some versions may be designated at long-term support (LTS), meaning that the distro owner will undertake to provide support & updates for that version for a longer period.
How do Linux distros using rolling release models work?
Delivering updates once the distro owner considers them to be stable
There is no distinction between versions
What is Chrome OS derived from?
Linux via Chromium
Chromium is an open-source OS
What is Chrome OS developed to run on?
Chromebooks & Chromebox
Theyre designed for budget & education markets
What apps does Chrome OS run?
web apps
Web applications are software hosted on a server that the client accesses via a browser.
How does a client connect to a web app in Chrome OS?
Using a browser
The client computer relies on the server for processing.
What is an advantage of Chrome OS regarding hardware requirements?
The client computer does not need to be particularly powerful
This is because the server does most of the processing.
What type of apps can be used offline on Chrome OS?
Packaged apps
These apps are specifically designed to function without an Internet connection.
What types of apps can Chrome OS run besides web applications?
Android Apps
This allows for a broader range of applications to be used on the platform.
What iPad models use iPadOS?
2019 & up
Older ones use iOS
What is the theoretical maximum volume size for NTFS?
The max volume size matters because it directly impacts storage capacity, performance, scalability, and compatibility.
16 Exabytes
16,777,216 TB
What are the actual limits for NTFS volume sizes?
137GB-256TB
What is the purpose of journaling in file systems?
To recover data after power outages and crashes
5 key features of NTFS?
- Journaling
- Snapshots
- POSIX Compliance
- Indexing
- Dynamic Disks
What is the purpose of Snapshots in file systems?
Allows Volume Shadow Copy to create read-only file copies, even if locked by another process
Name one security feature of NTFS.
File permissions
What is POSIX compliance in NTFS?
Support for UNIX/Linux compatibility
What is the maximum possible NTFS volume size in the latest Windows updates?
8 Petabytes (PB)
What is a significant drawback of NTFS?
Not fully supported by OSs other than Windows