RAS may refer to any of the following:
1. Short for remote access server, RAS allows users using either TCP/IP (transmission control protocol/Internet protocol), IPX (Internetwork Packet Exchange), or NetBUEI from a modem to log onto a Microsoft Windows NT network.
2. Short for row address select or row access strobe, RAS is signal that the CPU (central processing unit) or other hardware device, such as a video card, sends to the RAM (random-access memory). The signal contains information about where to locate the data in a row in the computer RAM.