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  2. Lotus 1-2-3 - Wikipedia

    en.wikipedia.org/wiki/Lotus_1-2-3

    Lotus 1-2-3 is a discontinued spreadsheet program from Lotus Software (later part of IBM).It was the first killer application of the IBM PC, was hugely popular in the 1980s, and significantly contributed to the success of IBM PC-compatibles in the business market.

  3. List of spreadsheet software - Wikipedia

    en.wikipedia.org/wiki/List_of_spreadsheet_software

    1982, Multiplan for CP/M operating system, later becoming Microsoft Excel, launched Aug 1982. 1983, Lotus 1-2-3 for MS-DOS, the first killer application for the IBM PC, it took the market from Visicalc in the early 1980s. 1983, Dynacalc for OS-9 a Unix-like operating system, similar to VisiCalc. [11]

  4. Income tax return (India) - Wikipedia

    en.wikipedia.org/wiki/Income_tax_return_(India)

    Income Tax Department. Income tax return is the form in which assesses file information about his/her income and tax thereon to Income Tax Department.Various forms are ITR 1, ITR 2, ITR 3, ITR 4, ITR 5, ITR 6 and ITR 7.

  5. SUGAM ITR-4S - Wikipedia

    en.wikipedia.org/wiki/SUGAM_ITR-4S

    The SUGAM ITR-4S Form is a Presumptive Income Tax Return Form and is part of the Income Tax Returns Filing process with the Income Tax Department of India. The Form is required to be filled out and submitted by those who are eligible to use it under the Income Tax Act, 1961, and the Income Tax Rules, 1962.

  6. ITR - Wikipedia

    en.wikipedia.org/wiki/ITR

    ITR may refer to Income tax return (India) Indiana Toll Road; Instrumental temperature record; International Tax Review (ITR) Internet talk radio; Inverted terminal repeat (molecular biology) i-Tree Tools software suite from the .itr file extension; Ittar, a type of perfume

  7. IBM Lotus SmartSuite - Wikipedia

    en.wikipedia.org/wiki/IBM_Lotus_SmartSuite

    SmartSuite is not officially supported by IBM on versions of Windows after XP, but it does work very well on both the 32-bit and 64-bit versions of Windows Vista, Windows 7, Windows 8.1, Windows 10 and Windows 11. eComStation 1.0 included the OS/2 version of Smartsuite. [2] It was an optional extra in later versions of eComStation. [3]

  8. Item response theory - Wikipedia

    en.wikipedia.org/wiki/Item_response_theory

    In psychometrics, item response theory (IRT, also known as latent trait theory, strong true score theory, or modern mental test theory) is a paradigm for the design, analysis, and scoring of tests, questionnaires, and similar instruments measuring abilities, attitudes, or other variables.

  9. Check sheet - Wikipedia

    en.wikipedia.org/wiki/Check_sheet

    A check sheet is a form (document) used to collect data in real time at the location where the data is generated. The data it captures can be quantitative or qualitative.When the information is quantitative, the check sheet is sometimes called a tally sheet.