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Homebulletgrey.gifeNewsletterbulletgrey.gifVolume 23bulletgrey.gifFirst Compiler

Who Developed the First Compiler?

Question: Who developed the first language compiler and when?

Answer: Rear Admiral Dr. Grace Murray Hopper, in 1949. The compiler, written in assembly language, converted symbolic mathematical code into machine code.

By 1949 programs contained mnemonics that were transformed into binary code instructions executable by the computer. Admiral Hopper and her team extended this improvement on binary code with the development of her first compiler, the A-O. The A-O series of compilers translated symbolic mathematical code into machine code, and allowed the specification of call numbers assigned to the collected programming routines stored on magnetic tape. One could then simply specify the call numbers of the desired routines and the computer would “find them on the tape, bring them over and do the additions. This was the first compiler,” she declared.

Source: http://www.cs.yale.edu/homes/tap/Files/hopper-story.html

Notable Quotes from Admiral Grace Murray Hopper, inventor of COBOL, and founder of early computer programming.

  • “Life was simple before World War II. After that, we had systems.”
  • “I seem to do a lot of retiring.”
  • “In pioneer days they used oxen for heavy pulling, and when one ox couldn’t budge a log, they didn’t try to grow a larger ox. We shouldn’t be trying for bigger computers, but for more systems of computers.”
  • “Humans are allergic to change. They love to say, ‘We’ve always done it this way.’ I try to fight that. That’s why I have a clock on my wall that runs counter-clockwise.”
  • “A business’ accounts receivable file is much more important than its accounts payable file.”
  • “We’re flooding people with information. We need to feed it through a processor. A human must turn information into intelligence or knowledge. We’ve tended to forget that no computer will ever ask a new question.”
  • “You manage things, you lead people. We went overboard on management and forgot about leadership. It might help if we ran the MBAs out of Washington.”

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Computer Associates International, Inc (NYSE: CA) has been developing and supporting software solutions for more than 99% of the Fortune 500® in more than 100 countries for over a quarter century. CA's world-class solutions address all aspects of eBusiness process management, information management, and infrastructure management in six focus areas: enterprise management, security, storage, portal and business intelligence, database management, application life cycle management, and application development. As the world's third largest enterprise software company, CA provides industry-leading integrated solutions through strategic partnerships and powerful brands such as Unicenter®, BrightStor™, eTrust™, CleverPath™, Advantage™, Jasmine® and AllFusion™. With mission-critical software in security and storage, CA provides reliable, quality technology. CA works hard to achieve the highest quality in their solutions to help their customers meet changing business needs. That's why CA became the first and only global enterprise software company to meet the exacting standards for worldwide ISO 9002 certification.

Advantage™ CA-Realia® II Workbench™ provides a mainframe-compatible COBOL development environment on the PC. It uses the power of the PC environment to improve the development and maintenance of COBOL and CICS applications. FairCom's c-tree Plus provides the underlying technology for the runtime file system of Advantage CA-Realia II Workbench. Computer Associates selected FairCom technology for this application because of the strength and flexibility of c-tree Plus and the flexibility of FairCom's business models.

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