With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Massachusetts has more than one hundred colleges and universities.
text_B: Friden Calculating Machine Company -LRB- Friden , Inc. -RRB- was an American manufacturer of typewriters and mechanical , later electronic calculators .. It was founded by Carl Friden in San Leandro , California , in 1934 .. Carl Friden. Carl Friden. Friden electromechanical calculators were robust and popular .. In 1957 , Friden purchased the Commercial Controls Corporation of Rochester , New York .. This gave them the Flexowriter teleprinter , an electric typewriter capable of being used as part of unit record equipment developed in World War II for the Department of the Navy to automatically type `` regret to inform you '' letters to the survivors of fallen servicemen , the predecessor to modern computers .. Flexowriter. Friden Flexowriter. unit record equipment. unit record equipment. The Flexowriter could be attached to Friden calculators and driven by paper tape to produce bills and other form letters which had names of customers and amounts of bills filled in automatically .. Flexowriter. Friden Flexowriter. paper tape. paper tape. Friden eventually expanded into production of a few models of early transistorized computers .. Friden introduced the first fully transistorized desktop electronic calculator , the model EC-130 in June 1963 , designed by Bob Ragen .. calculator. calculator. This machine had a 13-digit capacity and a 5-inch CRT display .. CRT. Cathode ray tube. It used a magnetostrictive delay line for memory -LRB- delay line memory -RRB- IEEE First-Hand , to save money on expensive transistors .. delay line memory. delay line memory. The EC-130 sold for $ 2,200 , about three times the price of comparable electromechanical calculators of the time .. It was the first calculator to use reverse Polish notation -LRB- RPN -RRB- , which eliminated the need for parentheses to specify the order of operations in complex calculations .. calculator. calculator. reverse Polish notation. reverse Polish notation. parentheses. Bracket#Parentheses (   ). order of operations. order of operations. The successor model EC-132 , introduced in April 1965 , added a square root function .. In 1965 the company was purchased by the Singer Corporation , but continued operation under the Friden brand name until 1974 .. Singer Corporation. Singer Corporation. The Singer -- Friden Research Center in Oakland , California , later moved to Palo Alto , California -LRB- 1965 to 1970 -RRB- , was unable to develop a pocket-sized calculator to compete with the corresponding new Japanese products , such as the Busicom , based on Intel 4004 in 1971 , Casio Mini and Sharp EL-805 in 1972 .. calculator. calculator
not_related.