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PS/2 port
6-pin mini DIN port that connects keyboards or mice on legacy computers; not interchangeable between them
CGA
320x240 - Analog format
EGA
640x350 - Analog format
VGA
640x480 - Analog format
SVGA
800x600 - Analog format
XGA
1024x768
WXGA
1366x768
XGA+
1152x864
WXGA+
1440x900
Super XGA
1400x1050
WSXGA+
1680x1050
Ultra XGA
1600x1200
WUXGA
1920x1200
DVI port
Digital Visual Interface; accepts both analog and digital signals but only through specific connectors. DVI-D, DVI-A, and DVI-A/D or DVI-I. DVI-I and DVI-D also support Dual-Link connections by having extra pins.
DisplayPort
Compact 20-pin connector; supports up to 2560 x 1600 and 120 Hz refresh rates. Can drive up to four displays by a single port and is capable of signal encryption and transmission of audio. Also comes in Mini Displayport.
HDMI port
High Definition Multimedia Interface; also comes in mini and micro variations
S/PDIF
Sony/Phillips Digital Interface; digital audio output that comes in both electrical and optical variations. Electrical usually uses RCA on coax, optical uses fiber.
RG-6 cable
Coaxial connection 75 Ohms
RG-59 cable
Coaxial connection 75Ohms
F connector
Coaxial connector, pin center, outer threaded ring
Component video
Uses 3 RCA connectors that split the signal into its components, 1 for brightness and 2 for color (Yellow, red, white)
S-Video
Sends video signal from a computer to a TV, shaped similarly to PS/2
MIDI/Joystick port
On legacy systems, a female DB-15 port with the pins arranged in 2 rows instead of 3
ST connector
Fiber connector (stick it in and twist it)
SC connector
Fiber connector (stick and click)
LC connector
Fiber Connector
BNC connector
Bayonet-style coax connector used for 10Base2 or Thinnet networking
FDDI, MT-RJ, and FC
Fiber internet connectors, less popular
USB Max devices
Can support up to 127 devices on a single port
USB 1.0/1.1 Low speed data rate
Conn type with 1.5 Mbps max speed
USB 1.0/1.1 Full Speed data rate
Conn type with 12 Mbit/s speed
USB 1 Max Length
Older connector with max length=3 meters
USB 2.0 Hi-speed data rate
Conn type with 480 Mbps max speed
USB 2.0 Hi-speed max length
Conn type with max length 5 meters
SuperSpeed USB 3.0 data rate
Conn type with 5 Gbps max speed
SuperSpeed USB 3.0 max length
Recent conn type with max length=3 meters
SuperSpeed+ USB 3.1 max speed
Conn type with 10 Gbps max speed
SuperSpeed+ USB 3.1 max length
Current conn type with max length 3 meters
USB mini
USB micro
USB 3 B
IEEE 1394a max speed
firewire 400 Mbps
IEEE 1394a max length
Firewire 400 4.5 meters cable length
IEEE1394a no of pins?
Firewire 400 with 6 pin connector
IEEE 1394a firewire max devices
Conn type with 63 max devices
IEEE standard for firewire?
1394a standard better known as?
IEEE 1394a
Firewire 400, 6 pins, 400Mbps
IEEE 1394b
FireWire 800 - 9-pins, max speed 800 Mbps;
Firewire S1600 speed
Connection runs at 1.6Gbps
Firewire S3200 speed
Connection runs at 3.2 Gbps
Firewire max devices
Technology that allows 63 devices in a daisy chain
Thunderbolt connector
Combines PCIe and DisplayPort into a single connection, used for peripherals. Max length 3 m on copper, 60 m on fiber
Thunderbolt distance
provides 100M with optical, 3M with copper
Thunderbolt 1 speed and conn type
Max speed 10 Gbps; MDP connector
Thunderbolt 2 speed and conn type
Max speed 20 Gbps; MDP connector
Thunderbolt 3 speed and conn type
Max speed 40 Gbps; USB Type-C connector
EMI
Electromagnetic Interference; occurs when two signals in close proximity interfere with each other
UPS
Uninterruptible Power Supply
SPS
Standby Power System; monitors power line, incurs split-second delay as power switches over
Online UPS
Acts as system's power source while charging internal batteries; switches instantly to battery during an outage; most also act as power conditioners
Line-interactive UPS
SPS with added circuitry for moderate AC surges and sags; may increase current consumption loads on fuses or circuit breakers
BIOS defn
Basic Input/Output System
TPM
Trusted Platform Module; hardware platform for accelerating cryptographic processing; commonly used for hard drive encryption
Secure Boot
Requires drivers and OS software to be properly signed by a trusted party; only available on Intel CPUs with UEFI BIOS and OS designed for it
UEFI
Unified Extensible Firmware Interface
NMI
Non-Maskable Interrupt
NIC
Network Interface Card
FRU
Field Replaceable Unit (spare part)
MSDS
Material Safety Data Sheet
Active PFC
Active Power Factor Correction; eliminates harmonics
JBOD
Just a Bunch of Disks
FAT 16 partition and file size limits
2.1 GB max partition size; no local file-level security & limits files to 4 GB
FAT 32 partition and file size limits
2 TB max partition size; no local file-level security & limits files to 4 GB
exFAT partition and file size limits
2 TB max partition size currently, theoretically supports up to 128 PB; no local file-level security (FAT 64)
NTFS
New Technology File System; has permissions, encryption, and disk quotas
MFT
Master File Table; used by NTFS; critical parts backed up in middle of disk
HFS+
Hierarchical File System Plus; used by Mac OSX; can read and write to FAT32 and exFAT; read-only support for NTFS
ext4
Fourth Extended File System; Linux; supports 1 EB volumes, 16 TB files; backwards-compatible with ext3 and ext2; can read and write to NTFS, FAT32, exFAT, HFS+, ext2, ext3, ext4
SMART
Self Monitoring, Analysis, and Reporting Technology; sed by HDDs and SSDs to detect failures
DVD Single Layer
4.7 GB capacity
DVD Dual Layer
8.5 GB capacity
RAID
Redundant Array of Independent Disks
RAID 0
Striping
RAID 1
Mirroring
RAID 5
Striping with parity; only protects against single drive failure
RAID 1+0
Stripe of Mirrors; best redundancy
GUID
Globally Unique Identifier; a unique ID number hard coded into bios/cmos
GPT
GUID Partition Table; newer basic disk partitioning scheme that requires UEFI
MBR
Master Boot Record; older basic disk partitioning scheme
MBR's job
To check the partition table for a partition with a valid OS; only 1 MBR and 1 partition tablw exist per disk
Number of partitions MBR supports
Format supporting 4 partitions
Max disk capacity of MBR
Format supporting 2.2 TB disk capacity
EFS
Encrypting File System; feature of NTFS
> format f: /fs:ntfs
Formats drive f: with NTFS file system
EPROM
Erasable Programmable Read-Only Memory
EEPROM
Electrically Erasable Programmable Read-Only Memory
CMOS stands for?
Complementary Metal-Oxide Semiconductor abbreviation
AT Motherboard
ATX Form Factor
MicroATX Form Factor
Note 
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