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  2. Hole punch - Wikipedia

    en.wikipedia.org/wiki/Hole_punch

    Some 2-hole punches have an "888" marking on their paper guide, to assist punching all four holes into A4 paper. [ 5 ] Konica Minolta specifies that for European 4-hole arrangements, all holes should be 11 ± 1 mm from the nearest (i.e. long/spine) edge of the paper, [ 6 ] which is slightly at variance with ISO 838's specification of 12 ± 1 mm .

  3. Ring binder - Wikipedia

    en.wikipedia.org/wiki/Ring_binder

    A standard 8 + 1 ⁄ 2 by 11 inches (220 mm × 280 mm) sheet of paper has three holes with spacing of 4 + 14 inches (110 mm). There is a variant for half-letter size pages (8 + 1 ⁄ 2 by 5 + 1 ⁄ 2 inches or 220 mm × 140 mm), whose three rings are 2 + 3 ⁄ 4 inches (70 mm) apart. "Ledger" size binders hold 11-by-17-inch (28 by 43 cm ...

  4. Comb binding - Wikipedia

    en.wikipedia.org/wiki/Comb_binding

    In bulk applications, a paper drilling machine may be used. Then the user chooses a spine size that will match the document. Standard sizes are 4.8 mm (3 ⁄ 16 in) (for 16 sheets of 20# paper) up to 51 mm (2 in) (for 425 sheets). Spine lengths are generally 280 mm (11 in) to match the length of letter-size paper.

  5. Wallace tree - Wikipedia

    en.wikipedia.org/wiki/Wallace_tree

    Pass the only weight-1 wire through, output: 1 weight-1 wire; Add a half adder for weight 2, outputs: 1 weight-2 wire, 1 weight-4 wire; Add a full adder for weight 4, outputs: 1 weight-4 wire, 1 weight-8 wire; Add a full adder for weight 8, and pass the remaining wire through, outputs: 2 weight-8 wires, 1 weight-16 wire

  6. Dadda multiplier - Wikipedia

    en.wikipedia.org/wiki/Dadda_multiplier

    4 layer Dadda reduction of an 8x8 partial product matrix, using 7 half adders (two dots) and 35 full adders (three dots). The dots in each column are bits of equal weight. Bits with lower weight are rightmost. The example in the adjacent image illustrates the reduction of an 8 × 8 multiplier, explained here.

  7. AOL Mail

    mail.aol.com/?offerId=netscapeconnect-en-us

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Punched tape - Wikipedia

    en.wikipedia.org/wiki/Punched_tape

    Tapes originally had five rows of holes for data across the width of the tape. Later tapes had more rows. A 1944 electro-mechanical programmable calculating machine, the Automatic Sequence Controlled Calculator or Harvard Mark I, used paper tape with 24 rows, [4] The IBM Selective Sequence Electronic Calculator (SSEC) used paper tape with 74 ...

  9. AOL

    search.aol.com

    The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.