Operating system
-controls interaction between components
memory, hard drives, keyboard, cpu.
its the way we interact with machines.
standard OS features
file management
application support
input and output support
linux
free unix-compatible software system
many different distributions (versions)
Mac OS
desktop running on apple hardware
chrome OS
centers around chrome web browser
most apps are web based
many different manufactures
relies on cloud.
Apple Ipad IOS
SDK
-software developer kit
file systems
before data can be written to the storage it must be formatted
windows file system is NTFS
-many OSes will read NTFS but not write
new windows filesystem being made ia ReFS
-future file system
-huge storage requirements
-constant data availability
FAT -file allocation table
-one of the first PC based file systems
FAT 32
-larger (2 terabyte) volume sizes
-maximum file size of 4 gigabytes
ex FAT -microsoft flash drive file system
-files can be larger than 4 gigs
-compatible across many OSes
EXT 4 0 fourth extended- file system
XFS
-high performance file system for Linux,
=designed for scalability
boot methods
USB storage
-motherboard must support booting from USB
network boot
-PXE -preboot execution environment
ssd/hdd
internet based
- Linux distrubutions, Mac OS recovery installaition, windows updates
external/ hot swappable drive
-internal hard drive
multi boot
-pick two or more OSes
types of installation
clean install
-wipe the slate clean
in-place upgrade
-miantain existing applications
and data
image deployment
- deploy a clone on every computer
remote network installation
-from a local or shared drive on your network
repair installation
fixes problems with windows OS
zero touch deployment
an automatic install
-streamlined implementation
the disk partition
-seperates the physical drive into logical pieces
useful to keep data separated
useful for maintaining seperate OSes
formatted partitions
are called volumes
GPT partitioned style
GPT (GUID Partition Table)
GUID- global unique identifier
requires UEFI BIOS
MBR
most boot record
-older standby with all the old limitations
primary partitions are the amount of different boot OSes you can have. MBR allows 4
-Extended MBR allows for logical partitions but you cannot boot from logical partitions
disk partioniong
the first step when preparing disks.
quick format vs full format
-quick format
-creates a new file table
-looks like data is erased but it’s not
full format
-writes zeros to the whole disk
-your data is unrecoverable
upgrade vs install
upgrade- keeps files in place
install- start over completely fresh
upgrade methods
in-place upgrade
-upgrade the existing OS
keeps all apps documents etc
clean install wipe everything and reload
