Some of the most popular PC software is available as a free download, or as shareware (some with a free trial). Use these links to get your copies:
FTP and SSH
FTP Explorer An easy-to-use shareware client that mimics the Windows Explorer interface, allowing you to transfer files to an FTP server, or to your personal Web site. www.ftpx.com
SSH Secure Shell An SSH and sftp client, this non-commercial version is free for educational and home use. Encrypts traffic to eliminate eavesdropping and more. www.openssh.com
Compression/Expansion Tools
WinZip This easy to use file compression tool for handling ZIP files. You can try out an evaluation copy before you purchase it. http://www.winzip.com.
Winrar Powerful archive manager that can backup data and reduce the size of attachments, decompress downloaded files, and more. Free trial. http://www.rarlabs.com/
Protection
Norton AntiVirus from Symantec Protect your PC with the antivirus software that's installed on all campus computers. Students living in Adelphi dorms can download it free. Others can buy it at www.symantec.com
BitDefender Online Scan Scans your system's memory, files, folders and drive boot sectors, allowing you the option to automatically clean the infected files. http://www.bitdefender.com/scan8/ie.html
AdAware Free protection against spyware that secretly attaches to your PC. Helps prevent aggressive pop-ups, sluggish computer activity, and identity theft. http://www.lavasoft.de
Spybot Search & Destroy Detects and removes spyware, which silently tracks your surfing to create a marketing profile for ad companies. http://www.safer-networking.org/en/index.html
Mozilla Firefox This award-winning open-source Web browser is used by millions worldwide. Fast, secure, and fully customizable to your online life. http://www.mozilla.com/en-US/firefox/
Computer Languages
Dr. Scheme An interactive, integrated free graphical programming environment for the Scheme, MzScheme, and MrEd programming languages. http://www.drscheme.org/
Java SE Java Platform, Standard Edition lets you develop and deploy Java applications on desktops and servers. http://java.sun.com/javase/index.jsp
BlueJ An integrated Java environment designed for introductory teaching. Emphasizes visualization, interactive techniques, exploration, and experimentation. http://www.bluej.org
Others
Adobe Acrobat Reader An essential free download that allows you to view, search and digitally sign PDF files, the standard for trusted distribution of information. http://www.adobe.com/
eBeam Software for 3M SmartBoard For faculty to use the digital whiteboard, download the Luidia software to the computer that's to be used during instruction. http://www.luidia.com/downloads/software.html
OpenOffice The free open-source office suite includes components for word processing, spreadsheets, presentations, graphics design, databases, and more. http://www.openoffice.org/
These and many other PC programs can be downloaded through CNET's Download.com.
Similarly, many Mac programs can be dowloaded for free or for a trial evaluation:
FTP and SSH
Fugu A free secure file transfer protocol (SFTP) application featuring drag-and-drop upload and download of files, external editor support, and image previews. http://rsug.itd.umich.edu/software/fugu
Norton AntiVirus from Symantec Protect your PC with the antivirus software that's installed on all campus computers. Students living in Adelphi dorms can download it free. Others can buy it at www.symantec.com
Browsers
Mozilla Firefox This award-winning open-source Web browser is used by millions worldwide. Fast, secure, and fully customizable to your online life. http://www.mozilla.com/en-US/firefox/
Computer Languages
Dr. Scheme An interactive, integrated free graphical programming environment for the Scheme, MzScheme, and MrEd programming languages. http://www.drscheme.org/
BlueJ An integrated Java environment designed for introductory teaching. Emphasizes visualization, interactive techniques, exploration, and experimentation. http://www.bluej.org
Others
Adobe Acrobat Reader An essential free download that allows you to view, search and digitally sign PDF files, the standard for trusted distribution of information. http://www.adobe.com/
eBeam Software for 3M SmartBoard For faculty to use the digital whiteboard, download the Luidia software to the computer that's to be used during instruction. http://www.luidia.com/downloads/software.html
OpenOffice The free open-source office suite includes components for word processing, spreadsheets, presentations, graphics design, databases, and more. http://www.openoffice.org/
These and many other Mac programs, for Mac OS 8/9 or Mac OS X, can be downloaded from VersionTracker.com