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  2. IBM 1620 - Wikipedia

    en.wikipedia.org/wiki/IBM_1620

    24-bit, five-digit decimal Memory Address (no 8 - Ten Thousand bit stored) 1 plane 384 cores; The address decoding logic of the Main memory also used two planes of 100 pulse transformer cores per module to generate the X-Y Line half-current pulses. There were two models of the 1620, each having totally different hardware implementations: IBM 1620 I

  3. Memory address - Wikipedia

    en.wikipedia.org/wiki/Memory_address

    Some older computers (decimal computers), were decimal digit-addressable. For example, each address in the IBM 1620's magnetic-core memory identified a single six bit binary-coded decimal digit, consisting of a parity bit, flag bit and four numerical bits. The 1620 used 5-digit decimal addresses, so in theory the highest possible address was ...

  4. Arbitrary-precision arithmetic - Wikipedia

    en.wikipedia.org/wiki/Arbitrary-precision_arithmetic

    An early widespread implementation was available via the IBM 1620 of 1959–1970. The 1620 was a decimal-digit machine which used discrete transistors, yet it had hardware (that used lookup tables) to perform integer arithmetic on digit strings of a length that could be from two to whatever memory was available. For floating-point arithmetic ...

  5. Timeline of binary prefixes - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_binary_prefixes

    The IBM 1410 Data Processing System, which used modified decimal addressing, uses decimal arithmetic for powers of ten, without prefixes [38] "Core storage units are available in 10 000-, 20 000 - or 40 000-character position capacities." "The matrix switch makes it possible to address any one of the 100 X-drive lines (in a 10 K core array)."

  6. IBM mainframe - Wikipedia

    en.wikipedia.org/wiki/IBM_mainframe

    IBM 1620 (decimal architecture, engineering, scientific, and education) IBM had difficulty getting customers to upgrade from the smaller machines to the mainframes because so much software had to be rewritten. The 7010 was introduced in 1962 as a mainframe-sized 1410. The later Systems 360 and 370 could emulate the 1400 machines.

  7. Manage distribution lists in AOL Mail

    help.aol.com/articles/manage-distribution-lists...

    Create distribution lists to save time when you send emails to a group of contacts from the contacts you already have in your AOL Contacts, set up a contact list with a group of people you often send emails. For example, you email the same content to 3 friends every week. Instead, create a contact list called "Friends".

  8. Add, edit, or delete Address Book contacts in AOL Desktop Gold

    help.aol.com/articles/aol-address-book-features

    The Address Book in Desktop Gold helps you keep track of email addresses, phone numbers, mailing addresses, birthdays, and anniversaries of your contacts. You can sort your Address Book by last name, first name, email address, screen name, telephone number, or category. Just use the Quick Find box to easily search through your contacts. Add a ...

  9. Find missing Address Book contacts in AOL Desktop Gold

    help.aol.com/articles/find-missing-address-book...

    Once signed in, check your Address book Contacts. If you see your contacts here, sign out of Desktop Gold and sign back in. If the problems persist, refer to the solution below. 3. Uninstall and reinstall Desktop Gold - Review our help article to uninstall and reinstall Desktop Gold.