Before there was random access memory , there was wait argument retentiveness . It was random in a dissimilar sense ; it involved turning electrical pulse rate into reasoned wave , mail them through tenacious tubes of atomic number 80 , and re - electrifying them at the other terminal .
The engineering science had its roots in the work of engineer J. Presper Eckert , who grow pedigree postponement system to ameliorate radar during World War II . or else of storing data in single morsel , it was pack together down to vocalize wave and mail through a medium that slow up them down ( ab initio mercury , then other substances , and ultimately wire ) . At the other end , they were re - electrified , litigate , and then sent back through the thermionic vacuum tube . Because of slow that hap in the tube ’s substance , hundreds of beat of datum could be sent in a single tube — hence the name “ delay line”—bouncing back and forth until they were need .
This post on Makeoffers a helpful analogy :
If you had a hard prison term commemorate things for very long , and happened to live in a cave , you could just squall out what you did n’t want to bury , and a few second after you would get a line an echo to remind you . Of course , the trouble with this is that an replication does n’t stick around for long , so you would have to shout again every time that you heard the reverberation , so that you could recollect again in a few seconds . Assuming you could keep this up , you would never forget your idea .
Until computers like the305 RAMACintroduced random access memory , car like the UNIVAC I , prove above , used serial - access systems like delay line memory . What this meant is that a certain slice of data could n’t be called up at any time ; you had to await until it was ready . In this case , it was ready when it had bounced to the “ read ” final stage of the metro . It only took a matter of millisecond , but it was a essentially unlike arrangement of computing , and it was n’t until the development of RAM some years later that our modernistic sense of reckoner remembering commence to take shape . [ Wikipedia , Make ]
https://gizmodo.com/ibm-305-ramac-the-grandaddy-of-modern-hard-drives-5494858
retentiveness [ Forever]is our week - long thoughtfulness of what it really means when our store , encode in bit , flow in a million directions , and might truly live forever .
HistoryMemory forever
Daily Newsletter
Get the best tech , science , and refinement word in your inbox daily .
news program from the future , delivered to your present .
You May Also Like
