BASIC will reply with:

10 PRINT 2+3

20 PRINT 2-3

DELETING A LINE

Sometimes it is desirable to delete a line of a program altogether. This is accomplished by typing the Line Number of the line so be deleted, followed by a carriage return.

Type in the following:

10 LIST

BASIC will reply with:

20 PRINT 2-3

We have now deleted line 10 from the program.

REPLACING A LINE

You can replace line 10, rather than just deleting it, by typing the new line 10 and hitting

RETURN.

Type in the following:

10 PRINT 3-3

LIST

BASIC will reply with:

10 PRINT 3-3

20 PRINT 2-3

It is not recommended that lines be numbered consecutively. It may become necessary to insert a

new line between two existing lines. An increment of 10 between line numbers is generally sufficient.

DELETING A PROGRAM

If you want to delete the complete program currently stored in memory, type in "NEW." If you are finished running one program and are about to read in a new one, be sure to type in "NEW" first.

Type in the following:

NEW

Now type in:

LIST

204 PRINTING DATA

If is often desirable to include explanatory text along with answers that are printed out.

Type in the following:

PRINT "ONE HALF EQUALS", 1/2

BASIC will reply with:

ONE THIRD EOUALS

.5

As explained in Subject 202, including a "," in a PRINT statement causes it to space over to the next 10-column field before the value following the "," is printed.

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Apple II manual Deleting a Line, Replacing a Line, Deleting a Program, List Printing Data, Print ONE Half EQUALS, 1/2

II specifications

The Apple II, launched in April 1977, was one of the first highly successful mass-produced microcomputer products. It marked a significant leap in personal computing, setting standards for future developments in the industry. Created by Steve Wozniak and Steve Jobs, the Apple II differentiated itself with its user-friendly design, appealing aesthetics, and robust capabilities.

One of the standout features of the Apple II was its open architecture, which allowed users to expand and enhance the computer's functionality. This design enabled hundreds of third-party hardware and software developers to contribute to its ecosystem, resulting in an array of peripherals, including printers, modems, and storage devices. The Apple II utilized a MOS Technology 6502 microprocessor running at a clock speed of 1 MHz. Initially equipped with 4 KB of RAM, the machine could be expanded to 48 KB, accommodating more complex applications and programs.

The Apple II was also notable for its colorful graphics. It was one of the first computers to support color display, offering a 6-color palette with a resolution of 280x192 pixels in 16 colors when using its Color Graphics Card. This feature significantly enhanced the visual appeal of games and educational software developed for the platform, making computing more accessible and entertaining for various audiences.

Apple's commitment to user experience was evident in the design of the machine. It featured an integrated keyboard and a plastic case, which was both durable and visually appealing. The self-contained design included drive bays for floppy disk drives, allowing for quicker data access than traditional tape drives. It also supported audio output, enabling sound effects and music, a novelty at the time.

The introduction of the Apple DOS operating system further underscored the machine's capabilities. DOS streamlined file management and made it easier for users to navigate and manage their data. The combination of hardware and software positioned the Apple II as an educational tool and a gaming platform, fostering a vibrant software ecosystem.

The Apple II family continued to evolve, with variations like the Apple II+, IIe, and IIgs being introduced over the years. These iterations brought enhancements in memory, processing power, and graphics capabilities. The legacy of the Apple II endures, not only as a foundational product in personal computing but also as a symbol of innovation that paved the way for future advancements in technology. Its impact is still felt today, as it inspired countless developers and shaped the trajectory of the computer industry.