×
Log in
Get Started
Travel
Technology
Sports
Marketing
Education
Career
Social Media
+ Explore all categories
Report -
Computer history and types. History From abacus (400BC) Napiers bone and alogrithems (1617) Oughtreds and schikards slide rule(1621,1623) Blaise Pascal.
Select
Pornographic
Defamatory
Illegal/Unlawful
Spam
Other Terms Of Service Violation
File a copyright complaint
Please pass captcha verification before submit form