Doug Engelbart, the man who developed the computer mouse during the 1960s, has died at 88 years old.
Originally made as two metal wheels encased in wood, Engelbart had reportedly patented the mouse before it became popular, and spent his life working in the field of technology.
According to a statement that his daughter, Christina, made to the Computer History Museum, Engelbart had not been doing well physically, and ultimately passed away in his sleep on Tuesday night.
Additionally, Engelbart also dabbled in the creation of email, word processing, and video teleconferences, according to BBC News.
Engelbart was born on January 30, 1925 in Portland, Oregon to a radio repairman and housewife.
Engelbart would later continue to Oregon State University, where he would study electrical engineering and worked as a radar technician during the Second World War.