P R E F A C E

About This Book

Newton 2.0 User Interface Guidelines describes how to create software products that optimize the interaction between people and devices that use Newton 2.0 software. The book explains the whys and hows of the Newton 2.0 interface in general terms and in specific details.

Newton 2.0 User Interface Guidelines helps you link the philosophy behind the Newton 2.0 interface to the actual implementation of the interface elements. Examples from a range of Newton soft- ware show good human interface design. These examples are augmented by descriptions and discussions of the reasoning behind the guidelines.

This book also contains examples of how not to design human interface; they are marked as such and appear with a discussion that points out what’s inappropriate and how to correct it.

Who Should Read This Book

This book is for people who design and develop software for Newton devices. If you are a designer, a human interface professional, or an engineer, this book contains information you need to design and create software that fits the Newton model. It also provides background information to help you plan your software product’s design.

Even if you don’t design and develop software for Newton, reading this book will help you understand the Newton interface. This understanding is useful to managers and planners who are thinking about developing Newton software, as well as to people who are studying human interface design in general.

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2 specifications

The Apple II is a defining product in the history of personal computing, first introduced in 1977 by Apple Computer, Inc. Designed by Steve Wozniak, the Apple II was one of the first highly successful mass-produced microcomputer products and played a significant role in bringing personal computers into homes and schools.

One of the Apple II's standout features was its color graphics capability. It was one of the first personal computers to provide color output, thanks to its built-in video interface. The initial model supported a resolution of 280x192 pixels with a palette of 6 colors, which allowed for vibrant visuals that set it apart from contemporaries like the monochrome Altair 8800.

The Apple II was notable for its open architecture. This design allowed users to expand the computer's capabilities easily through a series of expansion slots. Users could add floppy disk drives, additional memory, and various peripheral devices, making the system highly adaptable to individual needs. This encouraged a thriving ecosystem of third-party hardware and software, which contributed to its popularity.

Another significant feature was its use of the 6502 microprocessor. This 8-bit CPU was not only affordable but also powerful for its time, allowing the Apple II to run various applications efficiently. Along with a built-in keyboard and an innovative plastic case that housed its components, the design was user-friendly and appealing.

The Apple II also introduced the concept of “bootable software” through the use of floppy disks. The disk operating system (DOS) allowed users to store and run multiple programs without having to reload software manually, providing a level of convenience that had not been widely available before. Key software like VisiCalc, the first spreadsheet program, helped boost sales, showcasing the Apple II's utility in business and education environments.

The computer was also well-known for its early adoption of BASIC programming language. Apple provided an operating system that supported Applesoft BASIC, which enabled users, including students, to write their programs, further fostering a community of developers.

In summary, the Apple II's color graphics, open architecture, powerful 6502 processor, innovative use of floppy disks, and support for BASIC programming made it a revolutionary product in its time. Its legacy laid the groundwork for future personal computers and established Apple as a leader in the burgeoning tech industry. The Apple II remains an iconic symbol of the early personal computing era, reflecting a generation's transition into a digitally connected world.