Computer dictionary - O

Updated: 10/07/2019 by Computer Hope

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Top 10 'O' computer-related terms
Input and output

Output device
OS
Output
Scanner
Office button
OMR
Omnibox
Omnidirectional microphone
Omnivore
OSK
Outlook
Openoffice

O - Number

O

O - A

OA
Oak
Oakidata
Oak Technologies
OAUS

O - B

Oberon
Oberon System
Obfuscate
Obfuscated
Obfuscated code
Obfuscation
Obfuscator
OBJ
Object
Object-based storage device
Object code
Object computer
Object file
Objective C
Objective Caml
Object Linking and Embedding
Object module
Object-oriented
Object-oriented Categorical Abstract Machine Language
Object-oriented graphics
Object-oriented interface
Object-oriented language
Object-oriented programming
Object tag
Oblique
Obliquing angle
Obsolete
OBS Studio
OBTW

O - C
GNU Octave, and a graphical plot of the results

OC
OC-1
OC-3
OC-12
OC-24
OC-48
OC-192
OC-768
OCaml
OCR
Octal
Octave
Octet
Octothorpe
Oculus Rift
OCZ Technology

O - D
Intel OverDrive socket

od
ODBC
ODD
Odd header
Odd parity
ODI
ODLK
ODP
ODPR
Odyssey

O - E

OEM
OEM ink cartridge

O - F
Office 365

Off
Off-hook
Office
Office 365
Office assistant
Office automation
Office button
Office clipboard
Office Online
Office ribbon
Office software
Office suite
Offline
Offline storage
Off-line storage
Offset
Offset printing
Off-the-shelf

O - G

Ogg

O - H

Oh
OHCI
Ohm
Oh my God
Ohnosecond

O - I

OIC
OID
OIN

O - J

Currently no listings

O - K

Ok

O - L

OL
OLAP
OLE
OLED
Olive
Olivetti
OLL
OLPC
OL tag
OLTP
Olympus

O - M
Google Chrome Omnibox

OMDB
Omegle
OMFG
OMG
OMGZ
OMIK
Omnibox
OmniBrowse Inc.
OmniGraffle
OMR
OMW

O - N
Cloud computing

On
Onboard
Onboard
Onboard audio
Onboard computer
Onboard graphics
Onboard LAN
Onboard modem
Onboard speaker
Onboard video
Onboard WLAN
On-demand business intelligence
On-demand video
OneDrive
One laptop per child
One-line textbox
OneNote
One-pass compiler
OnePlus
OnePlus 2
OnePlus 3
OnePlus 3T
OnePlus 5
OnePlus 5T
OnePlus 6
OnePlus 6T
OnePlus 7
OnePlus 7 Pro
OnePlus One
OnePlus X
One-step backup
One-time password
One-time programmable
One Tree Software
On-hook
Onintr
Onionland
Online
Online advertising
Online app stores
Online auction
Online backup
Online collaboration
Online community
Online data entry
Online dating
Online documentation
Online editing
Online ethics
Online forum
Online game
Online help
Online music store
Online portal
Online PowerPoint presentation
Online predator
Online profile
Online proxy
Online registration
Online search
Online service
Online service provider
Online shop
Online shopping
Online shopping cart
Online state
Online storage
Online survey scam
Online video
Online video editor
OnLive
OnMouseOver
On-premise ERP
Onscreen keyboard
On-screen keyboard
Ontrack

O - O

OO
OOC
OOF
OOo
OOP
OOPL
Oops
OOTB
OOTO
ooVoo

O - P
Fiber optic

Op
Opacity
Opaque
Opcode
Open
OpenAL
Open Apple key
Open architecture
Open Audio Library
Open beta
Open beta testing
Openbox
Open brace
Open bracket
Open Broadcaster Software
OpenBSD
Open Database Connectivity
Open data-link interface
OpenDoc
OpenDrive
Open file
Openfire
OpenGL
OpenGL computer graphics
OpenGL polygon
Open graph
Open graphics library
Open Host Controller Interface
Opening file
Opening tag
Open jumper
OpenOffice
OpenPIC
Open quote
Open shop
Open Software Foundation
OpenSolaris
Open source
Open source code
Open-source software
OpenSSL
OpenStack
OpenSUSE
Open system
Open System Interconnection
Open tag
Open Whisper Systems
Open with
OpenZFS
Opera
Opera mail
Operand
Opera Software
Operating environment
Operating software
Operating system
Operating system software
Operation
Operation code
Operation research
Operator
Operator associatively
Operator overloading
Operator precedence
Opt
Optane
Optane memory
Opteron
Optgroup
Opti
Optical
Optical cable
Optical carrier
Optical character reader
Optical character recognition
Optical communications
Optical device
Optical disc
Optical disc drive
Optical disk
Optical disk drive
Optical drive
Optical drive audio connector
Optical fiber
Optical fiber cable
Optical fibre
Optical mark reading
Optical mark recognition
Optical mechanical mouse
Optical media
Optical mouse
Optical reader
Optical scanner
Optical storage
Optical storage device
Optical storage media
Optical time-domain reflectometer
Optical wireless
Optical zoom
Optimization
Optimize
Opt-in
Option
Optional hyphen
Option button
Option key
Option tag
Optisa
Optoelectronics
Optomechanical mouse
Opt-out

O - Q

Currently no listings

O - R
Page orientation

OR
Oracle
Oracle Beehive
Oracle Cloud
Oracle database
Oracle db
Oracle Fusion
Oracle of bacon
Oracle OpenWorld
Oracle Public Cloud
Oracle Solaris
Orange
Orange book
Orchid
Ordered list
Order of operations
Oreo
Organic light-emitting diode
Or gate
Orientation
Origin
Original equipment manufacturer
Origin PC
Orkut
Orly
OR operator
Orphan
Orphaned
Orphan file

O - S
Cathode-ray oscilloscope

OS
OS/2
Oscillation
Oscillator
Oscilloscope
OSCulator
OSD
OSF
OSHA
OSI
OSI layer
OSI Model
OSI reference model
Ositech Communications
OSK
OSPF
OSR2
OSRI
OSS
OS X

O - T

OT
OTDR
OTL
OTOH
OTP
OTP NVM
OTT
OTTOMH
OTW

O - U
Outbox

OUSU
Outbox
Outlet
Outline
Outline Font
Outline tab
Outline view
Outlook
Outlook.com
Outlook Express
Out of memory
Out of office
Out of order execution
Out of the office
Output
Output area
Output buffer
Output channel
Output device
Output hardware
Output hardware devices
Output port
Output screen
Output stream
Output tag
Outsource

O - V
Overheat

Overclock
Overclocked
Overclocked CPU
Overclocking
OverDrive
OverDrive Processor
OverDrive Processor Replacement
Overflow
Overflow error
Overheat
Overlaid windows
Overlay
Overlay network
Overload
Overprint
Over quota
Override
Overrun
Overstrike
Overtype
Overtype mode
Overvoltage Protection
Overwrite
Overwrite mode
Overwrite virus
Overwritten
OVR

O - W
OwnCloud

Ownage
OwnCloud
Owned
Owner
Ownership
Ownz
OWTTE

O - X

OxygenOS

O - Y

Currently no listings

O - Z

Currently no listings

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