Editing IBM 5110 (section)

==Description==
The 5110 featured the same housing as the 5100 (although the colors were different), which contained an [[IBM PALM processor]], a [[Computer keyboard|keyboard]] and a 1,024-character [[Computer display|display screen]]. Main memory held 16, 32, 48 or 64 [[Kilobyte|KB]] of [[data]], depending on the unit. Offering either [[magnetic tape]] or [[Floppy disk|diskette]] storage, the Model 1 could store as much as 204,000 bytes of information per [[Quarter-inch cartridge|tape cartridge]] or 1.2 MB on a single 8" diskette; the Model 2 allowed only diskette storage. Up to two IBM 5114 diskette units, each housing a maximum of two 8" diskette drives, could be attached to the 5110 for a total online diskette capacity of 4.8 MB. The IBM 5110 Model 3 allowed only one external IBM 5114 diskette unit.  IBM did not offer a [[local area network|LAN]] or [[hard disk drive]] for these systems. However, in 1981 [[Hal Prewitt]], founder of [[Core International, Inc]] invented and marketing the world's first and only  hard disk subsystems and "CoreNet", a LAN used to share programs and data for the IBM 5110 and 5120 systems.<ref>{{cite web|url=http://www.coreinternational.info/1981_5110_Disk_Brochure.pdf |title=''Save IBM 5110/20 from junk yards of the world''|publisher=Core|accessdate=Mar 31, 2010 |url-status= unfit |archive-date= Jul 21, 2011 |archive-url= https://web.archive.org/web/20110721193112/http://www.coreinternational.info/1981_5110_Disk_Brochure.pdf}}</ref><ref>{{cite web|url=http://www.coreinternational.info/1982_Sept_CORE_Newsletter.pdf|title=''1982 CORE Newsletter''|publisher=Core|accessdate= Nov 18, 2016 |url-status= unfit |archive-date= Mar 5, 2012 |archive-url= https://web.archive.org/web/20120305181141/http://www.coreinternational.info/1982_Sept_CORE_Newsletter.pdf}}</ref>

An IBM 5103 printer and an external IBM 5106 auxiliary tape unit (Model 1 only) were available as options from IBM.

Citing the easy use of his new system, Jeff Grube, vice president of [[Punxsutawney]] Electric Repair (who received the first IBM 5110 on February 2, 1978), said: "If you can type and use a hand-held calculator, you have all the skills necessary to operate a 5110."