C H A P T E R 6

Data Input

Replacing Text

By extending the method for inserting text, a user can replace existing text. Instead of tapping to position the caret, the user drags the highlighting mark to select the text to replace. Then the user writes the replacement text anywhere on the screen and the selected text is replaced.

Correcting Misrecognized Text

If the Newton system does not recognize a word correctly, the user can correct it by several means. For one, the user can replace any letter by writing another letter over it. The user also has the option of selecting or erasing the word and writing it again. Another alternative: the user can double-tap a word to pop up a picker that lists some alternate words. From the list of alternates the user can select one as a replacement. Figure 6-25 shows how a Correction picker works.

Figure 6-25How a Correction picker works

1. User double-taps

2. Correction picker

3. User selects

4. Selected alternate

the misrecognized

pops up

alternate word

word replaces

word Your

 

 

misrecognized word

At the bottom of the Correction picker are three buttons: a Keyboard button, a Corrector button, and a Try Letters button. Tapping Try Letters causes the Newton system to ignore the recognition dictionaries and try to recognize the word letter by letter. Tapping the Keyboard button displays a keyboard,

Writing, Drawing, and Editing

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Apple 2 manual Replacing Text, Correcting Misrecognized Text

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.