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2. Ink cartridge - Wikipedia

   en.wikipedia.org/wiki/Ink_cartridge

   Ink cartridges are typically priced at $13 to $75/US fl oz ($1,664 to $9,600/US gal; $440 to $2,536/L) of ink, [15] meaning that refill cartridges sometimes cost a substantial fraction of the cost of the printer. To save money, many people use compatible ink cartridges from a vendor other than the printer manufacturer [citation needed].

3. Toner refill - Wikipedia

   en.wikipedia.org/wiki/Toner_refill

   HP, Canon printers; Canon PC copiers; IBM/Lexmark Optra and similar; Epson EPL, NEC Silentwriter; Xerox and Sharp; Samsung and Lexmark Optra E; Brother; Kits are available to refill the 4 toner cartridges used by colour printers (cyan, magenta, yellow and black), or to fill a single cartridge. Kits include a reset chip where necessary.

4. Hewlett-Packard - Wikipedia

   en.wikipedia.org/wiki/Hewlett-Packard

   The company earned global respect for a variety of products. They introduced the world's first handheld scientific electronic calculator in 1972 (the HP-35), the first handheld programmable in 1974 (the HP-65), the first alphanumeric, programmable, expandable in 1979 (the HP-41C), and the first symbolic and graphing calculator, the HP-28C.

5. HP-65 - Wikipedia

   en.wikipedia.org/wiki/HP-65

   HP-65 in original hard case with manuals, software "Standard Pac" of magnetic cards, soft leather case, and charger The HP-65 is the first magnetic card-programmable handheld calculator. Introduced by Hewlett-Packard in 1974 at an MSRP of $795 [ 1 ] (equivalent to $4,912 in 2023) [ 2 ] , it featured nine storage registers and room for 100 ...

6. PPC Journal - Wikipedia

   en.wikipedia.org/wiki/PPC_Journal

   PPC Journal was an early hobbyist computer magazine, originally targeted at users of HP's first programmable calculator, the HP-65. It originated as 65 Notes and the first issue was published in 1974. [1] It later changed names in 1978 to PPC Journal and in 1980 to PPC Calculator Journal. [1]

7. AOL.com - News, Sports, Weather, Entertainment, Local & Lifestyle

   www.aol.com

   AOL latest headlines, entertainment, sports, articles for business, health and world news.