20 GOTO 10

By Steven Goodwin

Retro Computing by Numbers

The crowd has spoken – 20 GOTO 10 is happening. Pre-order your reward now.
$15 
58 pledges

Digital

An ebook plus your name listed as a supporter.
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$30  + shipping
116 pledges

Hardback

A first edition hardback, the ebook and your name listed as a supporter.
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$45  + shipping
27 pledges

Digital Copy of ZX Adventure for ZX81 or Spectrum

Digital copy of ZX Adventure for ZX81 or Spectrum plus a signed first edition hardback, the ebook and yor name listed as a supporter.
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$55  + shipping
6 pledges

1K Chess Poster Plus Signed Book

An A3 art print featuring the code for David Horne's famous 1k chess programme for the ZX81. Signed first edition hardback, the ebook and your name listed as a supporter.
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$55  + shipping
10 pledges

ZX81 Character Set Poster Plus Signed Book

An A3 art print featuring the ZX81 character set. Signed first edition hardback, the ebook and your name listed as a supporter.
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$55  + shipping
2 pledges

Tandy CoCo

PLUS:

  • An A3 art print featuring the Tandy character set. Signed first edition hardback, the ebook and your name listed as a supporter.
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$55  + shipping
3 pledges

ZX Spectrum Character Set Poster Plus Signed Book

An A3 art print featuring the ZX Spectrum character set. Signed first edition hardback, the ebook and your name listed as a supporter.
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$55  + shipping

ZX80 Character Set Poster Plus Signed Book

An A3 art print featuring the ZX80 character set. Signed first edition hardback, the ebook and your name listed as a supporter.
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$55  + shipping

Dragon 32 Character Set Poster Plus Signed Book

An A3 art print featuring the Dragon 32 character set. Signed first edition hardback, the ebook and your name listed as a supporter.
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$55  + shipping
3 pledges

Commodore 64 Character Set Poster Plus Signed Book

An A3 art print featuring the Commodore 64 character set. Signed first edition hardback, the ebook and your name listed as a supporter.
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$55  + shipping

Amstad CPC Character Set Poster Plus Signed Book

An A3 art print featuring the Amstad CPC character set. Signed first edition hardback, the ebook and your name listed as a supporter.
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$55  + shipping

Jupiter Ace Character Set Poster Plus Signed Book

An A3 art print featuring the Jupiter Ace character set. Signed first edition hardback, the ebook and your name listed as a supporter.
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$55  + shipping
17 pledges

Read With a Friend

Two copies of the first edition hardback, the ebook plus two names listed as supporters
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$70  + shipping
16 pledges

Signed Read With a Friend

Two signed copies of the first edition hardback, two ebooks plus two names in the supporters list
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$120  + shipping
2 pledges

Cover Art Print

A3 art print of the cover, plus a signed first edition hardback, the ebook and your name listed as a supporter.
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$135  + shipping
11 pledges

Tech Tour

A guided tour of the The Centre for Computing History in Cambridge by Steven and a trip to the pub afterwards. Plus a signed copy of the first edition hardback and your name lsited as a supporter. (Travel and refreshments not included in price).
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Sold out!

$40  + shipping
49 pledges

Your Favourite Machine

Let us know which obscure retro computer you love and we will make a number related to it appears in the book. Plus signed first edition hardback, the ebook and your name listed as a supporter.
$75  + shipping
5 pledges

Your Computer Featured in the Book

Computers never used to be identical beige or silver boxes. Did you decorate, customise, enhance, or otherwise modify your machine to really stand out? If so, let's immortalise your computer by featuring a picture of it in the book! Plus a signed first edition hardback, the ebook and your names listed as a supporter.
$105  + shipping
1 pledge

Personal Message 1 REM

Every BASIC program would start with the line '1 REM My Super Game'. We will include the name of your game in a REM statement in the book. Plus a signed first edition hardback, the ebook and your name listed as a supporter.
$105  + shipping
1 pledge

Personal Message 10 Print

In the 1980s, every high street store would have a computer running a BASIC program of '10 PRINT "My mate is a moron"; 20 GOTO 10'. You can insert your own message in a PRINT statement that will appear inthe book. Plus a signed first edition hardback, the ebook and your name listed as a supporter.
$105  + shipping
1 pledge

Personal Message 15 REM First Change

Lines numbers in BASIC would usually increment by ten, so you could insert code you missed inbetween them. Consequently, the first such omission would be at line 15. We will include your message in line 15. Plus a signed first edition hardback, the ebook and your name listed as a supporter
$225  + shipping

Your Game in the Book

Typing in listings from magazines was a rite of passage for any 1980s computer kid. So, how about you get your revenge? Send us your listing (of 100 lines or fewer) and we'll hide it within the pages of the book! Plus a signed first edition hardback, the ebook, plus your name listed as a supporter.

Frequently Asked Questions

Where can I get my book delivered to?

We deliver to most countries worldwide. Enter your delivery address during checkout and we'll display the shipping cost when we know where to send your book.

How do supporter names work?

Every person who pledges to help to make a book gets their name included in a supporter section as a thank you as long as they pledge before the list closing deadline. If you want to add a different name, this can be changed in your account after you have completed your pledge.

Will the book and rewards that I receive look the same as the images shown on the Unbound website?

Book designs, cover and other images are for illustrative purposes and may differ from final design.

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