Timeline of Computer History
 

1987  
Components
Motorola 68030
Motorola unveiled the 68030 microprocessor. A step up from the 68020, it built on a 32-bit enhanced microprocessor with a central processing unit core, a data cache, an instruction cache, an enhanced bus controller, and a memory management unit in a single VLSI device — all operating at speeds of at least 20 MHz.
Computers
IBM PS/2
IBM introduced its PS/2 machines, which made the 3 1/2-inch floppy disk drive and video graphics array standard for IBM computers. The first IBMs to include Intel´s 80386 chip, the company had shipped more than 1 million units by the end of the year. IBM released a new operating system, OS/2, at the same time, allowing the use of a mouse with IBMs for the first time.
Software & Languages
   Apple engineer William Atkinson designed HyperCard, a software tool that simplifies development of in-house applications. HyperCard differed from previous programs of its sort because Atkinson made it interactive rather than language-based and geared it toward the construction of user interfaces rather than the processing of data. In HyperCard, programmers built stacks with the concept of hypertext links between stacks of pages. Apple distributed the program free with Macintosh computers until 1992.

Hypercard users could look through existing HyperCard stacks as well as add to or edit the stacks. As a stack author, a programmer employed various tools to create his own stacks, linked together as a sort of slide show. At the lowest level, the program linked cards sequentially in chronological ordered, but the HyperTalk programming language allowed more sophisticated links.

 


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