First published in 1983, this outstanding reference work about the Commodore 64 helped many owners of the much-loved home computer understand their machine to a whole new level. The details within the book enabled users to perfect their coding skills in both BASIC and advanced machine code. To this day it remains a highly useful guide for those interested in retro games programming on the classic machine. * * * As the original publisher Melbourne House wrote: Here is the definitive book for the Commodore owner. A complete and comprehensive guide to make you total master of your Commodore 64. Commodore 64 Exposed is an encyclopedia of solutions from Basic programming through to machine language, and includes vital tables of memory locations and system variables. The step-by-step format is designed to ensure that every owner will understand exactly how their Commodore 64 works. Every feature and program variable is carefully explained with the aid of simple demonstration programs that can be entered in minutes. Whether you are a first-time computer user or a serious programmer, if you want to take full advantage of your Commodore 64's impressive capabilities, then this is the book for you. * * * Acorn Books is proud to present its Retro Reproduction Series, a collection of classic computing works from the 1980s and 90s, lovingly reproduced in the 21st century. From standards of programming reference no self-respecting microcomputer programmer would be without, to obscure works not found in print anywhere else, these modern reprints are perfect for any connoisseur of retro computing.

A single line of code offers a way to understand the cultural context of computing. This book takes a single line of code—the extremely concise BASIC program for the Commodore 64 inscribed in the title—and uses it as a lens through which to consider the phenomenon of creative computing and the way computer programs exist in culture. The authors of this collaboratively written book treat code not as merely functional but as a text—in the case of 10 PRINT, a text that appeared in many different printed sources—that yields a story about its making, its purpose, its assumptions, and more. They consider randomness and regularity in computing and art, the maze in culture, the popular BASIC programming language, and the highly influential Commodore 64 computer.

First published in 1983, this user-friendly guide to the Commodore 64 helped many owners of the much-loved home computer understand their machine to a whole new level. The details within the book enabled users to go further than the confines of programming purely in BASIC and is still a highly useful guide for those interested in retro gaming on the classic machine. * * * As the original publisher Interface Publications wrote: This book is a manual for all Commodore 64 users who wish to increase their understanding of how their computer works and how to program it proficiently in BASIC and machine code. The author explains how sound and music synthesis, programmable characters, high resolution graphics, function key programming, animation and sprites are done in both BASIC and machine code. It also contains a full memory map of the Commodore 64 and explains how the full 64K can be used and how to correct errors in both BASIC and the KERNAL ROMs. * * * Acorn Books is proud to present its Retro Reproductions series, a collection of classic computing works from the 80s and 90s given a new lease of life in the 21st century. From standards of programming reference no self-respecting microcomputer coder would be without, to obscure works unavailable for many years, these modern re-prints are perfect for any connoisseur of retro computing.

First published in 1984, this user-friendly guide to the Commodore 64 helped many owners of the much-loved home computer understand their machine to a whole new level. The details within the book enabled users to take their first steps in programming machine code even without prior coding experience. To this day it remains a highly useful guide for those interested in retro games programming on the classic machine. * * * As the original publisher Melbourne House wrote: This book will enable the user to learn machine language the easy way - no computer jargon. A straightforward approach with many examples. Complied exclusively for Commodore 64 users, COMMODORE 64 MACHINE LANGUAGE FOR THE ABSOLUTE BEGINNER offers complete instruction in 6502 machine language. If you are frustrated by the limitations of BASIC and want to write faster, more powerful, space-saving programs or subroutines, then this book is for you. Even with no previous experience of computer languages, the easy-to-understand 'no jargon' format of this book will enable you to discover the power of the Commodore 64's own language. Each chapter includes specific examples of machine language applications that can be demonstrated and used on your own Commodore 64. Includes an assembly language programming aid program which allows you to enter machine language programs with immediate confirmation of correct instruction. This book gives you everything you need to write machine language programs for your Commodore 64.

NEW YORK TIMES BESTSELLER Edward Snowden, the man who risked everything to expose the US government’s system of mass surveillance, reveals for the first time the story of his life, including how he helped to build that system and what motivated him to try to bring it down. In 2013, twenty-nine-year-old Edward Snowden shocked the world when he broke with the American intelligence establishment and revealed that the United States government was secretly pursuing the means to collect every single phone call, text message, and email. The result would be an unprecedented system of mass surveillance with the ability to pry into the private lives of every person on earth. Six years later, Snowden reveals for the very first time how he helped to build this system and why he was moved to expose it. Spanning the bucolic Beltway suburbs of his childhood and the clandestine CIA and NSA postings of his adulthood, Permanent Record is the extraordinary account of a bright young man who grew up online—a man who became a spy, a whistleblower, and, in exile, the Internet’s conscience. Written with wit, grace, passion, and an unflinching candor, Permanent Record is a crucial memoir of our digital age and destined to be a classic.

In the “Newbery Honor–winning author’s compelling fantasy” for young adults, a boy is chosen to rule his idyllic land—only to discover its dark secrets (Publishers Weekly). Green-sky is an ideal place. Violence doesn’t exist. Its citizens, the Kindar, glide from tree to tree and exchange happy thoughts. This is all thanks to their rulers, the Ol-zhaan. And on his thirteenth birthday, Raamo D’ok is chosen to become one of the Ol-zhaan. Raamo is surprised to be named a Chosen. He isn’t a very good student—but the Ol-zhaan believe he has strong Spirit-force. But during his training, Raamo discovers that these good rulers aren’t as benevolent as they appear. They harbor secrets about his people, his family, and what lies below the forest floor. Now Raamo must decide: Should he keep the peace, or reveal the secrets that the Ol-zhaan have protected for so long? This ebook features an extended biography of Zilpha Keatley Snyder.