Glossar
MAC-Adresse
Mail-Client
Mail-Relay
Mail-Transfer-Agent
Mail-User-Agent
Mailbox
Mailingliste
Mailserver
Mainframe
Malware
Man-in-the-Middle-Angriff
Managed Hosting
Markdown
Markup
Mashup
Master-DNS
Media-Server
Megabyte
Meta-Tag
Metasuchmaschine
Microblogging
Microsite
Middleware
Mikroformat
MIME
MIME-Typ
Mirror
Mobile-First
Modem
Modul
Modulation
Mooresches Gesetz
Multicast
Multihoming
Multiplexing
Multitasking
Multithreading
MySQL