When comparing NoSleep vs ZOC Terminal, the Slant community recommends ZOC Terminal for most people. In the question“What are the best Mac OSX apps for someone that's new to Apple?” ZOC Terminal is ranked 21st while NoSleep is ranked 26th. The most important reason people chose ZOC Terminal is:
ZOC has a modern design.
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Pros
Pro Lets you close the lid of a laptop
The laptop will not sleep even if you close the lid, but the display will sleep. If your display cannot sleep, simply lower the brightness until it goes dark & turns off.
Pro Modern look
ZOC has a modern design.
Pro An actual "Terminal Emulator"
It's an actual terminal emulator (in the sense that it emulates a terminal) and not just a local console window app.
Pro Scriptable
Zoc provides complete automation of the client using its macro scripting.
Pro Flexibility in platform support
Originally developed for OS/2 (as Zap-O-Comm), Zoc is currently available for Windows and Macintosh.
Pro Can view and send to all sessions at once
Offers a thumbnail view of all session in thumbnails and type commands to all sessions at the same time.
Pro Supports serial and dial-up connections
In addition to telnet, ssh, and rlogin, ZOC supports direct serial connections, modem dialing, and named pipes.
Pro Tabbed sessions allows for easy navigation
Tabbed sessions mean that multiple items can be contained within a single window and can be easily navigated by the user.
Pro Hideable UI
Zoc allows for every UI component except the title bar to be hidden. All features are accessible through the context menu.
Pro Auto-Highlight feature
Feature to search for text bits in the data stream and highlight them with color/background.
Cons
Con Discontinued development
Latest release was November 15th, 2014.
Con Hard to configure
It does not detect the installed shells (PowerShell, CMD, etc) automatically.
Con Options creep
It has so many options that it's hard to find the one you need.
Con Not free
Zoc requires a commercial license in order to use it, implying that it's not free.