Published online by Cambridge University Press: 05 June 2012
The first computers were used primarily to manage information for large companies and perform numerical calculations for the military. Only a few visionaries saw computing as something for everyone or imagined it could become a basic service like the telephone or electric power. This failure of imagination was due in large part to the fact that the people who controlled computing in the early years weren't the ones actually programming computers. If you worked for a large corporation or industrial laboratory, then you might have strictly limited access to a computer, but otherwise you were pretty much out of luck.
In the early years of computing, users submitted their programs to computer operators to be run in batches. You would hand the operator a stack of cards or a roll of paper tape punched full of holes that encoded your program. An operator would schedule your program to be run (possibly in the middle of the night) with a batch of other programs and at some point thereafter you would be handed a printout of the output generated by your program. You didn't interact directly with the computer and if your program crashed and produced no output, you'd have very little idea what had gone wrong.
The people who ran computer facilities were horrified at the idea of having users interact directly with their precious computers.
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.