Computer dictionary - O

Updated: 06/22/2024 by Computer Hope

Computer words starting with the letter 'O' with full definitions and information on each term. Explore this list of over 600 terms like output, octothorpe, Outlook, and OSK. Navigate quickly through the list by clicking one of the letters below; for example, click 'N' to find terms like onboard' in the 'ON' section.

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

Output Device
OS
Output
Optical Scanner
Optical Disc
OSK
Option Key
Octothorpe
Online Shopping
Outlook

O - Number

O

O - A

OA
Oak
Oak Technology
OASIS
Oath
Oatmeal
OAUS

O - B

OB
Oberon
Oberon System
Obfuscate
Obfuscated
Obfuscated code
Obfuscation
Obfuscator
OBJ
Object
Object-based storage device
Object code
Object computer
Object file
Object identifier
Object IDs
Objective-C
Objective Caml
Objective Logistics
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
Oblique angle
Obliquing angle
Obnoxiousware
OBS
Obsidian
Obsolete
OBS Studio
Obtuse
Obtuse triangle
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
Ocean Ripple
OCR
Oct
Octal
Octave
Octet
Octothorpe
Oculus Rift
OCZ Technology

O - D
Intel OverDrive socket

od
ODBC
Odbcad32
Odbccp32.cpl
ODD
Odd header
Odd parity
ODI
ODLK
ODP
ODPR
Odyssey

O - E

OEM
OEM ink cartridge
OEM service release

O - F
Office 365

Off
Off-hook
Office
Office 365
Office 2013
Office assistant
Office automation
Office button
Office clipboard
Office.Files.Images
OfficeJet
Office of Technology Licensing
Office Online
Office program
Office Ribbon
Office Ribbon tabs
Office software
Office suite
Office tabs
Office Web Apps
Office Web Components
Office work bag
Official website
Offline
Offline game
Offline mode
Offline storage
Offline UPS
Off-screen window
Offset
Offset printing
Offsite
Offsite backup
Off-the-shelf

O - G

OG
Ogg
Ogg file format
OggKate
OggPCM
OggUVS
Ogg vorbis

O - H

Oh
OHCI
Oh I see
Ohm
Ohms
Ohm's law
Oh my f***ing God
Oh my God
Oh my gosh
Ohnosecond

O - I

OIC
OICQ
OID
Oil Paint
OIN
OIS

O - J

Currently, no listings.

O - K

Ok
Okay
O key
OKI
OKI Data
OK.Its.Raining.Men

O - L

OL
OLAP
OldLace
Old Punter
Oldware
OLE
OLED
Olivetti
OLL
OLPC
OL tag
OLTP
Olympus

O - M
Google Chrome Omnibox

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

O - N
Cloud computing

On
Onboard
Onboard audio
Onboard computer
Onboard graphics
Onboarding
Onboard LAN
Onboard modem
Onboard speaker
Onboard video
Onboard WLAN
On demand
On-demand business intelligence
On-demand video
One
OneDrive
One-D-Ten-T
One laptop per child
One-line text box
OneLoupe
One million bytes per second
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 8
OnePlus 8 Pro
OnePlus 9
OnePlus 9 Pro
OnePlus 10
OnePlus 10 Pro
OnePlus Nord
OnePlus One
OnePlus Two
OnePlus X
One-step backup
One-time password
One-time programmable
One-to-many
One-to-many routing
One-to-one
One-to-one routing
One Tree Software
One-trick pony
One UI
One versus one
Oneview
On-hook
Onintr
Onionland
Online
Online advertising
Online analytical processing
Online app
Online app stores
Online auction
Online backup
Online backup service
Online Banking
Online bubble
Online chat
Online cloud
Online collaboration
Online community
Online data entry
Online dating
Online dependency
Online distribution
Online documentation
Online editing
OnLine English
Online ethics
Online etiquette
Online fax service
Online file sharing
Online file storage
Online forum
Online game
Online gaming
Online help
Online identity
Online identity theft
Online journal
Online music store
Online order
Online organizing
Online payment system
Online piracy
Online portal
Online PowerPoint presentation
Online predator
Online privacy
Online profile
Online proxy
Online proxy server
Online registration
Online search
Online service
Online service provider
Online shop
Online shopping
Online shopping cart
Online social network
Online state
Online storage
Online store
Online survey scam
Online system
Online tracking
Online transaction processing
Online UPS
Online video
Online video editor
Online video platform
OnLive
OnlyStopWatch
OnMouseOver
On my way
On-premise ERP
On-screen display
On-screen keyboard
On the other hand
On the phone
On the way
Ontrack

O - O

OO
OOC
OOF
OOM
OOo
Oooo...
OOP
OOPL
OO programming
Oops
OOTB
OOTO
ooVoo

O - P
Fiber optic

Op
Opacity
Opaque
Opcode
Open
OpenAI
OpenAL
Open a new tab
Open Apple key
Open architecture
Open Audio Library
Open beta
Open beta testing
Openbox
Open brace
Open bracket
Open Broadcaster Software
OpenBSD
OpenCloseDriveEject
Open Control Panel
Open curly brace
OpenCVS
Open Database Connectivity
Open data-link interface
OpenDoc
OpenDrive
Opened
Open file
Openfire
OpenGL
OpenGL computer graphics
OpenGL polygon
Open graph
Open graphics library
Open Group
Open Host Controller Interface
Opening
Opening file
Opening tag
Open Invention Network
Open jumper
Open key
OpenLinux
Open network
OpenOffice
OpenOffice Base
OpenOffice Calc
OpenOffice Draw
OpenOffice Impress
OpenOffice Math
OpenOffice.org
OpenOffice Writer
Open parenthesis
OpenPIC
Openpilot
Open port
Open quote
OpenSea
Open shop
Open Shortest Path First
Open Software Foundation
OpenSolaris
Open source
Open source code
Open sourced
Open source definition
Open Source Initiative
Open source program
Open-source software
OpenSSH
OpenSSL
OpenStack
OpenSUSE
Open system
Open Systems Interconnection
Open tag
OpenTF
OpenTofu
OpenVMS
Open Whisper Systems
Open Wi-Fi
Open with
Open world
Open-world game
OpenXPS
OpenZFS
Opera
Opera beta
Opera mail
Opera Mini
Operand
Opera Next
Opera Software
Operating environment
Operating software
Operating system
Operating system reinstall
Operating system software
Operation
Operational diskette
Operation code
Operation research
Operations support systems
Operation system
Operator
Operator associatively
Operator associativity
Operator overloading
Operator precedence
Opinion
Opinion poll
Oppo
Opposite color
Opstring
Opt
Optane
Optane memory
Opteron
Optgroup
Opti
Optiarc
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 Image Stabilization
Optical mark reader
Optical mark reading
Optical mark recognition
Optical-mechanical
Optical mechanical mouse
Optical media
Optical mice
Optical mouse
Optical reader
Optical resolution
Optical scanner
Optical storage
Optical storage device
Optical storage media
Optical technology
Optical telegraph
Optical time-domain reflectometer
Optical trackball
Optical wireless
Optical wireless communication
Optical zoom
Optic fiber
Optimization
Optimize
Optimized
Optimize Drives
Opt-in
Option
Option+-
Optional hyphen
Optional updates
Option button
Option key
Option menu
Options menu
Option tag
Optisa
Optoelectronics
Optomechanical mouse
Opt-out
OptOut
Opus

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
Order
Order code
Ordered list
Ordered tree
Order of operations
O'Reilly Open Books
Oreo
Org
Organic light-emitting diode
Organization
Organizationally Unique Identifier
Organize
Organized
Or gate
Orientation
Orientation lock
Origin
Original copy
Original equipment manufacturer
Original gangster
Original poster
Origin PC
Orkut
Orly
OR operator
Orphan
Orphaned
Orphaned file
Orphan file
Orphan work
Orthographic view

O - S
Cathode-ray oscilloscope

OS
OS/2
OS/2 IFS
OS/2 Warp
Osborne
Osborne 1
Osborne I
Oscillation
Oscillator
Oscilloscope
OSCulator
OSD
OSD Lock
OSD Lock-out
OSD Lockout
OSF
OSHA
OSI
OSI layer
OSI Model
OSI reference model
OSI stack
Ositech Communications
OSK
OS/mvs
OSP
OSPF
OSR
OSR2
OSRI
OSS
OS security
OS X
OSX
OS X Yosemite

O - T

OT
OTDR
OTG
OTG adapter
OTG cable
OTG connector
Otherdeed for Otherside
Other Windows latest version
OTL
OTOH
OTP
OTP NVM
OTS
OTT
OTTOMH
OTW

O - U
Outbox icon

OUI
OUSU
Outbox
Outcome variable
Outcrop
Outdated driver
Outgoing e-mailserver
Outlet
Outline
Outline Font
Outline tab
Outline view
Outlook
Outlook.com
Outlook Express
Outlook on web
Out-of-character
Out of memory
Out of office
Out of office notification
Out-of-order execution
Out of the office
Outpainting
Output
Output area
Output buffer
Output channel
Output device
Output hardware
Output hardware devices
Output port
Output screen
Output stream
Output tag
Output unit
Outsource
Outsourcing

O - V
Overheat - thermometer

Overclock
Overclocked
Overclocked CPU
Overclocking
OverDrive
OverDrive Processor
OverDrive Processor Replacement
Overflow
Overflow error
Overheat
Overheating
Overlaid windows
Overland Tandberg
Overlay
Overlay network
Overload
Overloaded
Overloading
Overpower
Overpowered
Overprint
Over quota
Override
Overriding
Overrun
Oversharenting
Overstrike
Over-the-shoulder
Over-the-shoulder view
Overtype
Overtype mode
Overview
Overvoltage
Overvoltage Protection
Overwatch
Overwatch 2
Overwrite
Overwrite mode
Overwrite virus
Overwritten
OVP
OVR

O - W
OwnCloud logo

OW
OW2
OWASP
OWC
Ownage
OwnCloud
Owned
Owner
Ownership
Ownz
OWTTE

O - X

OXO
OxygenOS
Oxylabs

O - Y

Currently, no listings.

O - Z

Currently, no listings.

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