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Adam Ondra on the sport climbing route Silence, the hardest free climbing route in the world and the first-ever at 9c (French), 5.15d (American YDS), and XII+ (UIAA).. The two main free climbing grading systems (which include the two main free climbing disciplines of sport climbing and traditional climbing) are the "French numerical system" and the "American YDS system". [2]
Kansas City – Shawangunk Mountains – 1977 – Early female ascent of a 7b route, by Barbara Devine. [54] [93] Tales of Power – Yosemite Valley CA (US) – 1981 – Redpoint of a 7b route by Louise Shepherd [94] [95] 7a (5.11d): Foops – Shawangunk Mountains – 1976 – Early female ascent of a 7a route, by Barbara Devine. [96] [93]
The IBM System/7 was a computer system designed for industrial control, announced on October 28, 1970 [1] and first shipped in 1971. [2] It was a 16-bit machine and one of the first made by IBM to use novel semiconductor memory , instead of magnetic core memory conventional at that date.
9-track tape drive used with DEC minicomputers Inside a 9-track tape drive. The vacuum columns are the two gray rectangles on the left. A typical 9-track unit consists of a tape transport—essentially all the mechanics that moves tape from reel to reel past the read/write and erase heads—and supporting control and data read/write electronics.
When looking at IBM stock, the valuation metric that stands out to me is its price-to-free-cash-flow ratio of 18, which measures the company's $215.2 billion market capitalization against the $12. ...
IBM's first magnetic-tape data storage devices, introduced in 1952, use what is now generally known as 7-track tape. The magnetic tape is 1 ⁄ 2 inch (13 mm) wide, and there are six data tracks plus one parity track for a total of seven parallel tracks that span the length of the tape.
(Reuters) - IBM said on Wednesday it expects a pre-tax charge of nearly $2.7 billion in the third quarter, related to a transaction involving the transfer of some of its pension plan obligations ...
The IBM 729 Magnetic Tape Unit was IBM's iconic tape mass storage system from the late 1950s through the mid-1960s. Part of the IBM 7-track family of tape units, it was used on late 700, most 7000 and many 1400 series computers.