- 3
- 3D Printer
- 3G
- 4
- 4G
- 4K
- 5
- 5G
- 4
- 403 Error
- 404 Error
- 8
- 802.11g
- 802.11n
- 802.11b
- 802.11ac
- 802.11a
- a
- Abend
- Abstraction
- Access
- Access Point
- Accessibility
- ACID
- ACL
- Activation Key
- Active Cell
- Active Directory
- Active-Matrix
- ActiveX
- Ad Hoc Network
- Adapter
- Adaptive Content
- ADC
- Add-on
- Address Bar
- ADF
- ADSL
- Adware
- Affiliate
- AFP
- AGP
- AIFF
- AIX
- Ajax
- Alert Box
- Algorithm
- Alpha Software
- ALU
- Analog
- Android
- Animated GIF
- ANR
- ANSI
- Anti-Aliasing
- Antivirus
- Apache
- APFS
- API
- APM
- App
- Apple
- Apple Silicon
- Applet
- Application
- Application Server
- APU
- Archie
- Archive Bit
- ARP
- Array
- Artificial Intelligence
- ASCII
- ASO
- ASP
- ASP.NET
- Aspect Ratio
- Assembler
- Assembly Language
- Assistive Technology
- ATA
- ATM
- Attachment
- ATX
- Augmented Reality
- AUP
- Authentication
- Autocomplete
- Autocorrect
- Autofill
- Autoresponder
- Avatar
- AVR
- Azure
- b
- Backbone
- Backdoor
- Backend
- c
- Computer
- d
- Digital
- h
- Hardware
- i
- Install
- m
- Mbps
- s
- Software
