 |
 Brother 50 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 56m Buy It Now for only: $4.95 |
 Smith Corona H21060 Lift Off Correcting Cassette $8.75 Time Remaining: 1d 9h 10m |
 Genuine Brother 3010 Lift Off Correction Tapes Ribbon New Factory Sealed 2 Pack $6.99 Time Remaining: 9d 13h 11m Buy It Now for only: $6.99 |
 Brother GX6750 GX 6750 GX 6750 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 9h 52m Buy It Now for only: $4.95 |
 New Genuine Brother 3010 2 Lift Off Correction Tapes $1.49 Time Remaining: 2d 7h 48m Buy It Now for only: $1.49 |
 BROTHER 6 LIFT OFF CORRECTION TAPES DRY 3015 $5.95 Time Remaining: 24d 10h 47m Buy It Now for only: $5.95 |
 Brother AX 24 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 6h 7m Buy It Now for only: $4.95 |
 6 Brother Lift Off Correction Tapes 3015 for Daisy Wheel Typewriters Processor $11.50 Time Remaining: 7d 2h 46m Buy It Now for only: $11.50 |
 Panasonic KX R Series Lift Off Correction Tape $5.95 Time Remaining: 5d 5h 28m Buy It Now for only: $5.95 |
 Nukote lift off correction tape for IBM wheel writer nk192lt $4.99 Time Remaining: 9d 14h 24m Buy It Now for only: $4.99 |
 NEW Brother Lift Off Correction Tape 6 Pack 3015 $8.00 Time Remaining: 8d 8h 34m Buy It Now for only: $8.00 |
 NEW Brother 6 Lift Off Correction Tapes Dry 3015 281 X 214 $5.99 Time Remaining: 24d 7h 33m Buy It Now for only: $5.99 |
 Brother AX 15 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 6h 1m Buy It Now for only: $4.95 |
 Brother SX4000 SX 4000 SX 4000 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 6d 5h 52m Buy It Now for only: $4.95 |
 IBM 1337765 Easystrike Lift Off Correction Tape Ribbon Wheelwriter Typewriters $0.99 Time Remaining: 4d 9h 18m Buy It Now for only: $0.99 |
 Smith Corona lift off Correcting Cassette H21060 same as H63412 NIP $5.99 Time Remaining: 29d 6h 34m Buy It Now for only: $5.99 |
 BROTHER 3010 2 LIFT OFF CORRECTION TAPES NEW IN FACTORY PACKAGING $5.95 Time Remaining: 23d 12h 20m Buy It Now for only: $5.95 |
 Genuine CANON AP14 Lift Off Correction Tape 6 Pieces Nice $19.99 Time Remaining: 1d 15h 40m Buy It Now for only: $22.99 |
 New Genuine Smith Corona Lift Off Correcting Cassette H 63412 Sealed in Bag $6.99 Time Remaining: 18d 12h 4m Buy It Now for only: $6.99 |
 6 CT Compatible Lift Off Correction Ribbon for IBM Wheelwriter 1337765 FREE SHIP $19.99 Time Remaining: 29d 8h 28m Buy It Now for only: $19.99 |
 Box of 6 Brother Lift Off Correction Tape for Electronic Typewriter 3015 $8.95 Time Remaining: 9d 17h 20m Buy It Now for only: $8.95 |
 Brother ML100 ML 100 ML 100 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 10h 14m Buy It Now for only: $4.95 |
 Smith Corona 21050 H Series Lift Off Correcting Tape $17.29 Time Remaining: 27d 14h 56m Buy It Now for only: $17.29 |
 New Brother Lift Off Correction Tape 2pc 3010 $6.99 Time Remaining: 12d 15h 10m Buy It Now for only: $6.99 |
 Brother Student Riter XL1 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 10h 29m Buy It Now for only: $4.95 |
 Brother WP55 WP 55 WP 55 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 6d 6h 23m Buy It Now for only: $4.95 |
 SMITH CORONA H 210600 LIFT OFF CORRECTING CASSETTE NEW $10.95 Time Remaining: 23d 12h 20m Buy It Now for only: $10.95 |
 6 New Smith Corona lift off correcting casette ribbons H67108 Sealed $19.99 Time Remaining: 25d 7h 7m Buy It Now for only: $19.99 |
 Brother EM530 EM 530 EM 530 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 8h 4m Buy It Now for only: $4.95 |
 Brother EM630 EM 630 EM 630 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 8h 6m Buy It Now for only: $4.95 |
 Brother AX35 AX 35 AX 35 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 6h 40m Buy It Now for only: $4.95 |
 2 Brother lift off correction tape 3010 $4.99 Time Remaining: 12d 9h 36m Buy It Now for only: $4.99 |
 IBM 1337765 Easystrike Lift Off Correction Tape Ribbon Wheelwriter Typewriters $13.50 Time Remaining: 16d 2h 51m Buy It Now for only: $13.50 |
 Brother AX 300 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 6h 22m Buy It Now for only: $4.95 |
 Genuine CANON AP14 Lift Off Correction Tape 6 Pieces Nice $19.99 Time Remaining: 1d 15h 40m Buy It Now for only: $22.99 |
 Adler Royal Satellite 40 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 47m Buy It Now for only: $4.95 |
 LOT OF 9 TEXAS LIFT OFF CORRECTION TAPE7510 01 094 8418 $9.99 Time Remaining: 20d 1h 6m Buy It Now for only: $9.99 |
 Canon AP14 Lift Off Correction Tape $3.00 Time Remaining: 3d 10h 24m Buy It Now for only: $3.00 |
 Brother AX 250 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 6h 19m Buy It Now for only: $4.95 |
 Brother WP5600MDS WP 5600 MDS WP 5600MDS Typewriter Lift Off Correction Tape $4.95 Time Remaining: 6d 6h 26m Buy It Now for only: $4.95 |
 Swintec Typewriter Lift Off Correction Tape Number 422 $8.50 Time Remaining: 21d 21h 49m Buy It Now for only: $8.50 |
 Brother AX350 AX 350 AX 350 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 6h 41m Buy It Now for only: $4.95 |
 Brother EM611 EM 611 EM 611 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 8h 6m Buy It Now for only: $4.95 |
 Brother GX7500 GX 7500 GX 7500 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 9h 54m Buy It Now for only: $4.95 |
 Smith Corona Lift Off Correcting Cassette H 21060 or H 63412 $9.99 Time Remaining: 23d 5h 56m Buy It Now for only: $9.99 |
 2 Brand New Genuine Brothers Lift off Correction Tape 3010 281 x 214 $6.49 Time Remaining: 19d 11h 30m Buy It Now for only: $6.49 |
 Smith Corona 21060 H Series Lift Off Correction Tape SMC21060 for Typewriters $11.99 Time Remaining: 3d 1h 55m Buy It Now for only: $11.99 |
 Smith Corona Lift Off Correcting Cassette H21060 $4.00 Time Remaining: 26d 3h 22m Buy It Now for only: $4.00 |
 3 Nu kote Lift off Correction Tape NK69TL 3 Olivetti ET $5.99 Time Remaining: 3d 10h 21m Buy It Now for only: $5.99 |
 Dataproducts R1421 6 Compatible Lift Off Correction Tape Clear 6 IN BOX $8.99 Time Remaining: 7d 1h 10m Buy It Now for only: $8.99 |
 Brother WP1400D WP 1400 D WP 1400D Typewriter Lift Off Correction Tape $4.95 Time Remaining: 6d 5h 58m Buy It Now for only: $4.95 |
 GENUINE Smith Corona Lift Off Correcting Cart C 16345 Coronamatic Typewriter $2.95 Time Remaining: 2d 8h 31m |
 5 Canon AP14 Lift Off Correction Typewriter Tapes New in Box Reorder No 860760 $4.95 Time Remaining: 23h 58m Buy It Now for only: $4.95 |
 Brother CE50XL CE 50 XL CE 50XL Typewriter Lift Off Correction Tape $4.95 Time Remaining: 7h 4m Buy It Now for only: $4.95 |
 Brother CE550 CE 550 CE 550 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 7h 7m Buy It Now for only: $4.95 |
 Brother WP77S WP 77S WP 77S Typewriter Lift Off Correction Tape $4.95 Time Remaining: 6d 6h 42m Buy It Now for only: $4.95 |
 Brother AX 22 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 6h 4m Buy It Now for only: $4.95 |
 Adler Royal Satellite IV Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 48m Buy It Now for only: $4.95 |
 Adler Royal Gabrielle 100 DS Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 45m Buy It Now for only: $4.95 |
 Quill Xerox 6010 MemoryWriter Lift Off Correction Ribbon $5.00 Time Remaining: 2d 9h 32m Buy It Now for only: $5.00 |
 Brother AX40 AX 40 AX 40 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 6h 42m Buy It Now for only: $4.95 |
 Lot of 3 Swintec 422 6 Packs of Lift Off Correction Tapes 18 Total $14.99 Time Remaining: 17d 10h 7m Buy It Now for only: $14.99 |
 Brother ML300 ML 300 ML 300 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 10h 15m Buy It Now for only: $4.95 |
 BOX OF 6 LIFT OFF CORRECTING TAPES FOR OLIVETTI LEXICON ET PANASONIC SHARP $4.75 Time Remaining: 13d 2h 43m Buy It Now for only: $4.75 |
 1 CORRECTION TAPE LOW TACK LIFT OFF TYPERWRITERS NEW $0.99 Time Remaining: 21h 31m Buy It Now for only: $0.99 |
 Unicopy Lift off Correction Tape 101848 for IBM Selectrics $4.49 Time Remaining: 11d 10h Buy It Now for only: $4.49 |
 Xerox 62 Series Correction Tape Electronic Typewriter Lift Off Tape 8R10322 NOS $13.00 Time Remaining: 14d 17m Buy It Now for only: $13.00 |
 Pack of Three Smith Corona H 67116 Lift Off Correcting Cassettes $0.99 Time Remaining: 3d 10h 29m Buy It Now for only: $10.00 |
 Adler 115 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 46m Buy It Now for only: $4.95 |
 Adler 310 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 48m Buy It Now for only: $4.95 |
 Adler 315 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 50m Buy It Now for only: $4.95 |
 Adler 320 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 50m Buy It Now for only: $4.95 |
 Adler 325 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 50m Buy It Now for only: $4.95 |
 Adler 390 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 51m Buy It Now for only: $4.95 |
 Adler 410 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 52m Buy It Now for only: $4.95 |
 Adler 415 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 52m Buy It Now for only: $4.95 |
 Adler 425 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 52m Buy It Now for only: $4.95 |
 Adler 420 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 53m Buy It Now for only: $4.95 |
 Adler 501 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 53m Buy It Now for only: $4.95 |
 Adler 503 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 54m Buy It Now for only: $4.95 |
 Adler 600 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 54m Buy It Now for only: $4.95 |
 Adler 801 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 54m Buy It Now for only: $4.95 |
 Adler 803 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 55m Buy It Now for only: $4.95 |
 Adler BSM 100 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 55m Buy It Now for only: $4.95 |
 1 Smith Corona Lift Off Correcting Cassette H 21060 Same As H 63412 $1.99 Time Remaining: 5d 3h 58m Buy It Now for only: $2.99 |
 Adler Compact 400 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 4h 56m Buy It Now for only: $4.95 |
 Adler Compact 400 DS Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 10m Buy It Now for only: $4.95 |
 Adler Gabrielle 100 DS Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 12m Buy It Now for only: $4.95 |
 Adler Gabrielle 100 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 12m Buy It Now for only: $4.95 |
 Adler Gabrielle 8008 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 12m Buy It Now for only: $4.95 |
 Adler Gabrielle 9009 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 13m Buy It Now for only: $4.95 |
 Adler Gabrielle Cyclo Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 13m Buy It Now for only: $4.95 |
 Adler Gabrielle PFS Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 14m Buy It Now for only: $4.95 |
 Adler Imperial Alpha 110 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 18m Buy It Now for only: $4.95 |
 Adler Meteor II Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 19m Buy It Now for only: $4.95 |
 Adler Satellite 2001 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 20m Buy It Now for only: $4.95 |
 Adler Satellite 2002 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 21m Buy It Now for only: $4.95 |
 Adler Satellite 2015 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 21m Buy It Now for only: $4.95 |
 Adler Satellite 40 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 21m Buy It Now for only: $4.95 |
 Adler Satellite 80 Typewriter Lift Off Correction Tape $4.95 Time Remaining: 5h 22m Buy It Now for only: $4.95 |
Liftoff Correction
IBM celebrates tech behind first U.S. manned space flight
As NASA marks the 50th anniversary of the first U.S. manned space flight, IBM is celebrating the mathematicians and engineers who helped make it happen.
While people around the world held their breath and watched astronaut Alan Shepard blast off on May 5, 1961, workers at IBM sat on the edge of their seats watching their technology go to work. IBM not only had been in charge of installing and maintaining three "large-scale" computers for the mission, it also was also responsible for developing the technology that enabled NASA to track the spacecraft and provide real-time information to Mission Control.
"Alan Shepard was the bravest of the brave, and his flight ushered in America's space age," said Arthur Cohen, the mathematician who led IBM's Project Mercury Team. "The IBM team had the honor of applying computing power and mathematics to support the project.... We experienced an unforgettable sense of excitement when Alan Shepard safely accomplished his mission. I will forever remember May 5, 1961, and the incredible team of NASA and IBM men and women I had the opportunity to work with." wholesale Android Tablets
Cohen, in an email to Computerworld noted that IBM's work involved an early manifestation of real-time and predictive analytics. What IBM technicians put together for NASA helped to usher in the days of real-time communication.
According to IBM, its team of more than 75 employees working on the Mercury Project from 1959 to 1963 developed a "real-time channel" called the IBM 7281, which could receive up to 1,000 bits of data per second.
They also created advanced software programs and mathematics models to analyze incoming data and provide mission-critical information to NASA flight controllers throughout the space flight.
"The real-time aspect -- receiving asynchronous data -- was new and breakthrough," said Cohen. "The 7281 real-time channel and the data that was streaming in had to be received and evaluated in real time to be able to use information to drive displays at [Cape Canaveral]. That was brand new. It had never been done before. Of course, real time then was 1,000 bits of data per second. Today, it's, of course, trillions of bits per second."
Cohen noted the monitor that took in all the real-time information was particularly challenging to develop, but its creation also had long-term benefits on the advancement of computing.
"The monitor accepted information real-time and decided which software needed to be addressed to proceed so Mission Control would get the information it required," he added.
He said that the other technology that had a big impact on the future of computing was the mathematics IBM developed specifically for the mission. Cohen said IBM's team had to create the math needed to determine the spacecraft's trajectory, correct the trajectory, and track the capsule into re-entry or abort.
To provide real-time information to Mission Control, the IBM team built and ran three large-scale computers that funneled in all flight information. There were two 7090 transistorized computers installed at the Goddard Space Flight Center in Greenbelt, Md., and a 709 computer at the Bermuda Control Center, which acted as a backup to the project's Mission Control facility at Cape Canaveral.
Cohen remembers the entire project as an incredible amount of painstaking work.
"It was a tremendous amount of work," he said. "We sometimes worked 36 hours straight or more. As we got closer to launch, we were waiting for liftoff to occur and we couldn't leave the computing centers, so sometimes we had to sleep there with the computers.... There was a lot of suspense involved as we anticipated a man going on top of a rocket. We knew the computer systems would work, but we were in suspense of the first U.S. man going to space."
About the Author
Key Power-Factor Correction Components