Pay in installments of $5.30 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
On the Principles and Development of the Calculator and Other Seminal WritingsRegarded as a crackpot by his contemporaries and a genius by modern scientists, Charles Babbage (1792 1871) was the true discoverer of the principles on which all modern computing machines are based. His achievements have been virtually forgotten, but this compilation of his writings, in addition to those of several of his contemporaries, illuminates his pioneering work. Part I consists of selections from Babbage's long out of print autobiography,
Regarded as a crackpot by his contemporaries and a genius by modern scientists, Charles Babbage (1792-1871) was the true discoverer of the principles on which all modern computing machines are based. His achievements have been virtually forgotten, but this compilation of his writings, in addition to those of several of his contemporaries, illuminates his pioneering work.Part I consists of selections from Babbage's long-out-of-print autobiography, Passages from the Life of a Philosopher, in which he recounts the pursuit of his dreams and remarks on noteworthy acquaintances, including Laplace, Biot, Humboldt, and Sir Humphry Davy. Additional features include articles, sketches, and letters by Babbage himself along with notes by his contemporaries that explain the principles and operation of the inventor's brilliant -- but never completed -- calculating machines. An informative Introduction places these writings in their historical context.
Binding Type: Paperback
Publisher: Dover Publications
Published: 11/21/2012
ISBN: 9780486246918
Pages: 400
Weight: 1.00lbs
Size: 8.40h x 5.30w x 0.90d
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 6 reviews
Sort
Product Reviews
★★★★★ 5
Well made
Color: Blue
It’s great, better than I expected. I love I love the color and the fit is perfect. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 4
Good buy
Color: Black
Sturdy and fits perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 5
Sturdy iPad case
Color: Black
Great case. Sturdy and easy to install. Would purchase from this seller again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
Durable and Rugged
Color: Black
I've had it for a few weeks now. It was a replacement I bought after buying several vinyl type covers. This one is a good gauge of plastic and rubber. The rubber seems pretty strong and it protects the iPad well on the corners and back. The back is mostly covered except for the Apple logo in the center. In addition to protecting the corners and also protects the camera lens as the rubber after insulation is a little bit higher than the lens so when you put this down, it's not going to scratch the lens. It has a pen slot, which I like and plenty of room to grip the device if I'm carrying it from place a place or when I'm using it, I can grip the edge and not touch the screen. One of the things I would've liked included is a screen protector, but nothing covers the screen. I also miss the folio type cover because the screen will gather dust now. But, Apple screens are fairly durable so I'm not too worried about breaking it. It was easy to install. It came in as it came in a couple of pieces that you just pressed together. All the controls are obvious as they are under the rubber, but they look like keys. One more thing I might bring up is the charging port. It's easy to get to even though it's a little deep. On my iPad the touch sensor is on the on off button and it is a little harder to do than if I didn't have any case on it, but that is to be expected. It also has an easel that unfolds from the back if you want to sit it up, but I don't use it for watching anything since I have a real TV set. So far I like it and I'm glad I bought this as I don't think it's going to wear out as quickly from me handling it as the others did. The value was good as long as it lasts.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
iPad case is great
Color: Black
Fits great. Like the stand feature on the back
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026