Model:-87XMGeneral:Name:?Code-Name:Gemini?Family:?Logic:?Features:?Firsts:?Introduction:Date:1982-06-14Price:$2,995Discontinuation:Date:1984-12-01Price:$2,995Production-Run:?Display:Type:?Size:?Number-Formats:?Annunciators:?Data:User-Visible:Smallest:?Largest:?Signif.-Digits:?Internal:Smallest:?Largest:?Signif.-Digits:?Data-Types-and-Sizes:?Memory:Named-Registers:?Flags:?Register-Usage:?Numbered-Registers:?Program-Steps:?Program-Editing:?Program-Display:?User-RAM-Bytes:128KTotal-RAM-Bytes:640KROM-Bytes:48KMachine-State:?File-Types:?Physical:Technology-Used:?Processor:?Chip-Count:?Power-Source:?Continuous-Memory:?Expansion-Ports:4I/O-Ports:HP-IB, HP-IL, Serial, GPIO, BCD, parallelprinter, data link, beeper3 1/2", 5 1/4", 8", winchester diskClock:?Length:?Width:?Height:?Weight:?Temperature-Range:Operating:? to ? deg CCharging:? to ? deg CStorage:? to ? deg CKeyboard:Switches:?Shift-Keys:?User-Defined-Keys:?Key-Arrangement::?Key-Labels-Base-Keyboard::?Key-Labels-f-gold-above::?Programmable-Operations::?Non-Programmable-Operations::?Menus::?Bugs/ROM-Versions::?Notes::?