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Hewlett-Packard (HP) developed the first ScanJet in the mid-1980s at their printer division in Boise, Idaho. [4] [5] The ScanJet was released in March 1987, [6] as a compliment to their LaserJet series, which was the first commercially successful line of laser printers ever released, [7] introduced in 1984 and also developed at Boise.
The first scanner to store its images digitally onto a computer was a drum scanner built in 1957 at the National Bureau of Standards (NBS, later NIST) by a team led by Russell A. Kirsch. It used a photomultiplier tube to detect light at a given point and produced an amplified signal that a computer could read and store into memory.
3. Click on Scan Your PC. 4. Click on the type of scan that you want to perform. 5. The Scan Window will appear on your screen. 6. Wait for the scan to complete and review the results. Note: If you select the 'Run a custom scan' option the Custom Scan window will appear on your screen. Here you can manually select which locations McAfee should ...
The IBM 3820, announced on February 12, 1985, was IBM's first AFP cut-sheet printer. [27] [47] The 3820 could be attached to a host mainframe system via Systems Network Architecture SNA/SDLC, or to a PC using the IBM Personal Computer Network (PCLAN) or Corvus Omninet. An entry-level 3820 sold for $29,900 (equivalent to $87,415 in 2024). [53]
HP 9815A. Chronologically, the models of the family were: HP 9810A, a keystroke programmable computer with magnetic cards and LED display, introduced in 1971, [1]; HP 9820A, introduced in 1972, was the first HP model that deals with algebraic input (not only RPN) [2] featured a high level language simpler than BASIC that was later named high performance language (HPL),
Printer steganography is a type of steganography – "hiding data within data" [30] – produced by color printers, including Brother, Canon, Dell, Epson, HP, IBM, Konica Minolta, Kyocera, Lanier, Lexmark, Ricoh, Toshiba and Xerox [31] brand color laser printers, where tiny yellow dots are added to each page. The dots are barely visible and ...
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