(I hope you’re not tired of this, because we’ll be here for a while.)
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Replying to @mwichary
Here are some early clocks to make sure your employees punch in and out.pic.twitter.com/h6ao6CnP9d
1 reply 1 retweet 8 likes -
Replying to @mwichary
Early phones and clocks conspired to form this automated system to wake up guests at a hotel. (I wish I understood how it worked.)pic.twitter.com/a9BJ6JFhC5
1 reply 0 retweets 8 likes -
Replying to @mwichary
Moving on to a Chinese abacus – but one that only works in zero gravity.pic.twitter.com/D8SNO96RtG
3 replies 1 retweet 8 likes -
Replying to @mwichary
Some of the early desk calculators looked… different than you might expect them to.pic.twitter.com/zqTeLqQERK
1 reply 1 retweet 8 likes -
Replying to @mwichary
Apparently early devices to count things were called “denominators”?pic.twitter.com/KPdcklKLPc
1 reply 0 retweets 6 likes -
Replying to @mwichary
Check out this calculator’s worn out, malformed old-style full keyboard.pic.twitter.com/YNeTvG3Eqs
1 reply 1 retweet 10 likes -
Replying to @mwichary
Eventually, we moved on to ten-key calculator keypads (which were faster to touch-type on), but they kept evolving, too.pic.twitter.com/OnID1Sdk1M
1 reply 0 retweets 5 likes -
Replying to @mwichary
Practicing on real machines was expensive, so there were practice “dummy” calculators for you to master keyboarding!pic.twitter.com/uGqqykx7aa
2 replies 1 retweet 5 likes -
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