Copy II PC (1985) 17 Utility DOS

Central Point Copy II PC is a disk duplication program that can successfully copy many copy protected disks using only standard IBM PC hardware. It is generally considered the best software-only solution for duplicating such disks. "snatchit".

• 2.xx
• 3.xx
• 4.xx
• 5.xx
• 6.00

Copy II PC Option Board Software (1986) 3 DOS

This is the Transcopy utility software for use with the Copy II PC Option Board. The Copy II PC Option/Deluxe Option Board/"Transcopy" card is an ISA expansion card created and sold by Central Point Software that enables an IBM PC or compatible to duplicate most floppy disk copy protection methods.

• 3.x
• 5.x

CopyWrite (1990) 0 Utility DOS

CopyWrite is a disk duplicator that can duplicate disks with many advanced copy protection schemes using a standard IBM PC floppy drive and controller.

• 1990

Corel Presentations (1995) 1 Presentations DOS

Corel Presentations (which is often referred to simply as Presentations) is a presentation program akin to Microsoft PowerPoint and OpenOffice.org Impress.

• 2.x

Corporate Ladder (1989) 0 Graphics DOS

Corporate Ladder is a quick and easy text-mode DOS based tool for creating organization charts and similar documents such as process-flow diagrams, decision trees, procedure diagrams, forms, and labels.

• 1.x

Correct Grammar (1989) 2 Word Processor Utility DOS

Correct Grammar is a grammar checking and analysis tool for DOS. Correct Grammar incorporates technology from the Houghton Mifflin CorrectText system.

• 2.x

CorrectStar (1984) 2 Word Processor Utility DOS

CorrectStar, from MicroPro International, is an add-on spell checker for WordStar 3.3. It was sold both bundled with WordStar and separately. Later versions of WordStar integrated the spell checker.

• 3.3x

Cougar Mountain Software ACT (1992) 0 Financial DOS

Cougar Mountain Software ACT 2 PLUS is a comprehensive multi-user accounting package. It includes General ledger, accounts receivable and payable, purchase order, order entry, inventory and payroll, check reconciliation. It also features the ability to import and export files, and a modular form set-up allows integration of all modules. It was sold alongside ACT 1 PLUS, the single user version.

• 8.x
• 9.0

Crosstalk (1983) 14 Communications DOS

Originally released in 1982, Crosstalk XVI, from Digital Communications Associates Inc of Alpharetta, Georgia, is a powerful telecommunications program for the IBM PC with many scripting features. "XVI" means "16", and refers to the powerful new 16-bit x86 CPUs found in IBM PC's and compatibles. It was followed up by the MK 4 and Communicatior products.

• XVI 3.3x
• XVI 3.5x
• XVI 3.6x
• XVI 3.7x
• MK.4 2.x
• Communicator 2.x
• XVI 3.8x

CWI Tutor DOS (1991) 1 Education DOS

The ultimate DOS tutor. Everything you wanted to know about DOS and more.

• 1.x

Dac-Easy Word (1987) 1 Word Processor DOS

DAC-Easy Word is a budget word processor package. It can have up to four document windows open, can work with large-ish documents, supports macros, features drop-down menus, built-in help, and includes a mailing list manager.

• II

DacEasy Accounting (1987) 1 Financial DOS

DacEasy was the first company to offer affordable accounting software geared towards the small business. It was first released in 1985 and had gone through many DOS revisions at the time the Windows version was released.

• 2.0 (DOS)
• 4.x (DOS)

Dan Bricklin's Demo (1988) 2 Presentations DOS

Dan Bricklin's "Demo" is a tool for creating tutorials, interactive application demonstrations, and interface prototypes. It has a powerful scripting system, with the ability to store and manipulate both text and graphics screens, and a redistributable runtime. author of VisiCalc. Demo was first released in 1985 by Dan Bricklin's consulting firm Software Garden. It was later sold under Peter Norton Computing, and then Sage Software.

• II v2

Davong Hard Disk Controller Drivers (1982) 1 DOS

This is the driver software used to configure and access a Davong internal hard disk controller for the IBM PC. This controller was significant as being one of the few hard disk systems accessible under DOS 1.x. system instead partitions the disk in to several smaller drives.

• 2.4

DEC Rainbow Learn Rainbow tutorial (1983) 1 CPM

This is a tutorial program included with DEC Rainbow computers. The DEC Rainbow is a non-IBM compatible MS-DOS computer. This program is for the CP/M-86 operating system.

• 1

DEC Rainbow Winchester Diagnostics 2.1 (1983) 0 CPM

Hard disk diagnostics and utilities for the DEC Rainbow computer. The DEC Rainbow is a non-IBM compatible MS-DOS computer. This program is for the CP/M-86 operating system.

• 2.x

Decision Pad (1989) 1 Database DOS

Decision Pad, from Apian Software, is a decision support tool that uses a decision matrix approach. It also supports a three-dimensional decision matrix for group decisions, and can import/export data from Lotus 1-2-3 files. It competed against a similar tool called "Prism".

• 2.x

DeluxePaint Animation (1990) 1 Graphics DOS

DeluxePaint Animation is a raster based animation program based on the DeluxePaint painting program. It features ease of use, powerful drawing functionality, and a playback utility. As a DOS program, it was limited to 640k and 320x200 resolution in 256 colors.

• 1990

Diagnostics for the Texas Instruments Professional Computer (1982) 2 DOS

This is the diagnostics test disk for testing the Texas Instruments Professional Computer. compatible computer that runs an adaptation of MS-DOS and CP/M-86.

• 1.x

Digital Research PL/I Compiler (1983) 2 DOS CPM

PL/I is a programming language oriented towards scientific and business programming. Digital Research provided implementations for their CP/M operating system as well as MS-DOS.

• 1.x

Disk-Count Software The Spreadsheet (1988) 0 Spreadsheet DOS

This is a low-end spreadsheet program from Disk-Count software, a vendor notable for their budget software titles. "This program is designed for the first time user with the capability for more advanced users. A spreadsheet is ideal for calculating any set of numbers that you normally would do by hand. Some of the uses are for preparing home budgets, calculating financial payments, tracking car expenses, and creating statistical models."

• 1.x

DiskClone (1998) 4 Utility DOS

DiskClone, from Quarterdeck, is a simple, professional, small, powerful, and easy to use hard disk cloning tool. It can copy a drive to another internal or external drive of different sizes. It can be used as a backup, or a migration tool to a new drive. It all fits on a single floppy disk. "Corporate" editions.

• 1.0

DiskDoubler (1990) 3 Utility Archive MacOS

DiskDoubler is an automated file compression program for the Apple Macintosh. It does not compress the entire drive, but rather specified files. It automatically compresses and recompresses files as you use them.

• 3.x

DiskLock (1993) 2 Utility DOS Windows

DiskLock, From Fifth Generation Systems, and later from Symantec as Norton DiskLock, is a data security tool that can lock a hard disk or individual files or directories so that it requires a password to access any data. It can also log activity to detect unauthorized access attempts. It also features the ability to lock the system after an idle usage period. There were versions for PC and Mac.

• 2.x
• 3.x

Disney Animation Studio (1992) 0 Graphics DOS

Disney Animation Studio is an animation graphics tool, that originated on the Amiga. It supports multiple VGA resolutions.

• IBM (1992)