Cache86 (1990) 0 Utility DOS

Cache86 is a high speed disk caching program for DOS and Windows 3.x systems. It features a very small conventional memory overhead, speed, reliability, support for Extended memory on 286+ machines, and support for Expanded memory on PC/XT class machines.

• 3.x

CADKEY (1988) 1 Graphics Engineering DOS

CADKEY is a 2D/3D mechanical CAD (computer aided design or computer aided drafting) software application released for various DOS, Solaris, and Microsoft Windows operating systems. Originally released for DOS in 1984, CADKEY was among the first CAD programs with 3D capabilities for personal computers.

• 1.x

CalcStar (1980) 0 Spreadsheet DOS CPM

CalcStar is a spreadsheet from MicroPro, somewhat like VisiCalc but using commands similar to WordStar. You can also format content similar to WordStar. It was available for CP/M and DOS, and often part of early 80s system's bundled software.

• 1.x

Calendar Creator Plus (1990) 2 Novelty PIM DOS

Calendar Creator Plus from Vermont Creative Software/Power Up, and later Spinnaker Software, is a tool for creating printed calendars with different styles and custom lists of events.

• 3.x (DOS)

Carbon Copy (1990) 0 Utility DOS

Carbon Copy is a remote control desktop program for DOS and later Windows, similar to PCAnywhere. protection. You can not connect to other copies of Carbon Copy if the serial numbers are the same.

• 5.x

cc:Mail (1993) 1 Communications OS2

cc:Mail, originally from Concentric Systems, Inc and later Lotus and IBM, is a desktop e-Mail system intended for small LANs. It relies on accessing a shared database file rather than client-sever methods.

• 1.x for OS/2

Central Point Anti-Virus (1992) 0 Utility DOS

Central Point Anti-Virus was a DOS-based antivirus program developed originally by an Israel company, CARMEL Software Engineering Ltd. as "Turbo Anti-Virus", and licensed by Central Point Software Inc. It was the basis for Microsoft's Anti-Virus for DOS and Windows (MSAV and MWAV). In 1994 it was acquired by Symantec Corporation and merged into Norton Antivirus.

• 1.x

Change Directory Plus (1993) 0 Utility DOS

Change Directory Plus is a small commercial utility distributed with Softdisk publishing's Big Blue Disk magazine. It indexes all folders on your hard drive, and permits you to change in to a deep subdirectory simply by specifying the final subdirectories name.

• 1.x

Chart-Master (1985) 1 Presentations Graphics DOS

Chart-Master, originally introduced in 1981 by Decision Resources, Inc., was the first software that could produce presentation quality graphics with a plotter on a personal computer. Decision Resources also produced Sign-Master and Diagram-Master. They were acquired by Ashton-Tate in 1986. This program was also bundled in the Master Graphics Presentation Pack.

• 6.x

CheckIt (1988) 15 Utility DOS

CheckIt, from TouchStone Software Corporation, is a diagnostic tool for generic PC/XT/AT compatible computers. It can perform tests on RAM, hard disks, video cards, floppy disks, motherboard resources, and I/O devices. It has an easy to use menu interface but can also run tests non-interactively. It was followed up by the product WINCheckit.

• 1.x
• 2.1
• 3.0
• LAN 2.x
• Pro 1.x

Citrix Multiuser Link (1991) 0 Communications DOS OS2

Multiuser Link is a telecommunications program that Connects a PC running DOS or OS/2 to a Citrix Multiuser system via standard RS-232C serial directly or with a modem.

• 1.0

Clarion (1989) 19 Database DOS

Clarion is an advanced user friendly 4GL DBMS and programming environment for DOS and Windows. It boasted the ability to greatly reduce application development time, featured highly integrated visual creation tools, and a powerful set of program functions.

• 2.X (DOS)
• 3.0 (DOS)
• 3.1 (DOS)

Claris Impact (1994) 0 Presentations Windows MacOS

Claris Impact is a business graphing program that provides attractive business presentations with minimal artistic skill. It features the ability to create graphs using "Models", a guided module somewhat like a wizard.

• 2.x

Claris Organizer (1995) 4 PIM MacOS

Claris Organizer is an easy to use personal information management (PIM) program for the classic Mac OS. It integrates calendar, contacts, tasks, and notes in to one small lightweight application. It has a variety of flexible print option and can print mailing labels. It competed with the Apple Newton PDA. Claris Organizer was praised for its small size and well thought out interface. It was sold to Palm when Claris was broken up, and was used as the basis for the Palm Desktop for Mac.

• 1.0
• 2.0

ClarisDraw (1995) 8 Graphics Windows MacOS

ClarisDraw is a vector based drawing program and the successor to MacDraw. The name was changed partially because there was now also a Microsoft Windows port. The final release was 1.0v4.

• 1.0x

ClarisWorks (1991) 38 Word Processor Spreadsheet Presentations Graphics Publishing Database Windows MacOS

ClarisWorks is an all-in-one Word Processor, Spreadsheet, Database, Graphics Editor, and Presentations tool from Claris. In 1998, after version 5.0.2, ClairsWorks was purchased by Apple and re-branded under the "AppleWorks" name. It is not related to the Apple II AppleWorks product.

• 1.x
• 2.x
• 3.x
• 4.x
• 5.x
• For Kids 1.0

ClickArt Personal Publisher (1986) 1 Publishing DOS

ClickArt Personal Publisher is a simplified, Mac-like desktop publishing program. It was later purchased by Software Publishing Corporation and turned in to PFS:First Publisher, who then in turn sold it to Spinnaker Software where it became Easy Working Desktop Publisher

• 1.x

CO/Session (1992) 1 Communications DOS

CO-Session is a remote communication access program that supports remote control, file transfer, automates session, and promoted itself as faster and more powerful than Carbon Copy Plus.

• 6.x

Coherent (1994) 2 Unix

Coherent, from Mark Williams Company, was a compact high speed Unix clone that was ported to a number of architectures including IBM PC.

• 4.x

Colorado Backup (1996) 1 Utility DOS Windows

Colorado Backup is the software provided with HP Colorado tape drives.

• Set
• 4.x for DOS

ColoRIX (1990) 0 Graphics DOS

ColorRIX is a simple mouse-driven painting program for DOS. It features the ability to easily work with pallets and gradients. It was bundled with some video cards, and supported many custom resolutions. VGA Paint, on standard IBM VGA hardware, supports an undocumented 360x480 256 color mode.

• VGA 1.x

ColorWorks (1996) 0 Graphics OS2

ColorWorks is a powerful, full-featured, photo editing program designed exclusively for OS/2. It is a native 32-bit OS/2 application and makes use of OS/2 multitasking, multithreading, and SMP capabilities. It has many features and tools that make it comparable to most other image editors.

• 2.x

COMit (1994) 0 Communications DOS Windows

COMit is a small, lightweight, and easy to use telecommunications terminal emulator for MS-DOS systems. OEMs commonly bundled it with modem hardware.

• 1.x

Company Ladder (1990) 0 Presentations DOS

Company Ladder is a budget oriented tool that specialized in making corporate organizational charts. It could handle large numbers of entries and print high quality graphs.

• 1.x

COMPAQ Personal Computer MATCHMAKER (1989) 1 DOS

MATCHMAKER is a floppy disk based customer survey sent to potential Compaq customers. The intent was to collect data about current hardware and software application use for marketing and development purposes. It also provides an interactive overview of then-current Compaq 386 hardware products.

• 1989