Sign In

Communications of the ACM

Sign In

Forgot Your Password?

We can help you if you still remember your username for your account.

Need Access?

Please select one of the options below for access to premium content and features.

Create a Web Account

If you are an ACM member, Communications subscriber, Digital Library subscriber, or use your institution's subscription, please set up a web account to access premium content and site features.
If you are a SIG member or member of the general public, you may set up a web account to comment on free articles and sign up for email alerts.

Join the ACM

Become a member to take full advantage of ACM's outstanding computing information resources, networking opportunities, and other benefits.

Subscribe to Communications of the ACM Magazine

Get full access to 50+ years of CACM content and receive the print version of the magazine monthly.
Read CACM in a free mobile app!
Access the latest issue, plus archived issues and more
ACM Logo
  • ACM CACM apps available for iPad, iPhone and iPod Touch, and Android platforms
  • ACM Digital Library apps available for iOS, Android, and Windows devices
  • Download an app and sign in to it with your ACM Web Account
Find the app for your mobile device