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The computer mouse was first invented in 1968 by Douglas Engelbart. [2] The term mouse tracking originally referred to how movements were captured and transmitted to the computer. For example, the original tracker ball mouse used a metal bearing pressed against two rollers to track movement. [2]
Microsoft Office Excel – for MS Windows and Apple Macintosh. The proprietary spreadsheet leader. Microsoft Works Spreadsheet – for MS Windows (previously MS-DOS and Apple Macintosh). Only allows one sheet at a time. PlanMaker – for MS Windows, Linux, MS Windows Mobile and CE; part of SoftMaker Office
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VisiCalc ("visible calculator") [1] is the first spreadsheet computer program for personal computers, [2] originally released for the Apple II by VisiCorp on October 17, 1979. [1] [3] It is considered the killer application for the Apple II, [4] turning the microcomputer from a hobby for computer enthusiasts into a serious business tool, and then prompting IBM to introduce the IBM PC two years ...
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. [1] The check sheet is one of the so-called Seven Basic Tools of Quality Control. [2]
It is a unique ID number or code assigned to a package or parcel. The tracking number is typically printed on the shipping label as a bar code that can be scanned by anyone with a bar code reader or smartphone. In the United States, some of the carriers using tracking numbers include UPS, [1] FedEx, [2] and the United States Postal Service. [3]
Abbreviations: A, B, C, for first, second and third, P and H for pitcher and catcher, S for shortstop, L, M, and R for left, center, and right field. There is no authoritative set of rules for scorekeeping. The traditional method has many variations in its symbols and syntax, but this is a typical example.
The attacker needs to be familiar with the keys layout of the tracked keyboard to correlate between body movements and keys position, although with a suitably large sample this can be deduced. Tracking audible signals of the user' interface (e.g. a sound the device produce to informs the user that a keystroke was logged) may reduce the ...