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May 1979 • Vol 1 No 4
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May 1979 — Vol 1 No 4

Source

Open original PDF • May 1979 • Vol 1 No 4 • 11 pages

Overview

The "election" issue: full slate of nominees published, with short biographical sketches. A "trial marriage" with NOVAPPLE (Northern Virginia's Apple users group) is announced — articles will carry NOVAPPLE designations, and the mailing list is merged. Bernie Urban devotes 2+ pages to Jon Roland's "The Microelectronic Revolution" from The Futurist (April 1979), excerpting predictions on integrated-circuit "throughput density," picocomputers implanted in human skulls, and the "dator" personal terminal — adding his own warning against a 1984-style abuse of the network. John Moon contributes two deep technical pieces: locating Integer BASIC variables in memory, and an interface to the Monitor's floating-point routines. First paid advertisement appears: Research Associates' SHAPE DESIGNER ($15.95).

Table of contents

Section Page
Editor's letter / nominations slate 1
NOVAPPLE merger announcement 1–2
Minutes of 4/28/79 (incl. copyright committee) 2
Floppy disk storage envelopes (Mark Crosby) 2
"Something to Think About" — Jon Roland excerpts 2–4
Software Review: SINGLE DISK COPY — Howard Richoux 4
"Locating Integer BASIC Variables" — John L. Moon 5
"Floating Point in Integer BASIC" — John L. Moon 6–8
Research Associates' SHAPE DESIGNER ad 9
"Music for Greenapples" — Rick Hodder 9
Calendar of Events; Next meeting 9
Biographical sketches of candidates 10

Articles

Editor's letter & nominations slate (page 1) — Bernard Urban

Mark L. Crosby withdraws his name (over-committed). Urban moves to re-open nominations for President and Treasurer. Adds Rick Hodder as a member-at-large nominee from the Greenapples. Nominee slate:

Office Nominees
President John Moon, Susan Eickmeyer, Sandy Greenfarb, Bernard Urban
Vice-President John Ditman, Genevie Urban, Hal Weinstock, Robert Peck, Tom Bottegal
Secretary John Ditman, David Itkin, John Moon, Susan Eickmeyer, Robert Peck
Treasurer Sandy Greenfarb, Mort Simon, Mark L. Crosby, Bernard Urban
Members-at-Large (3) Genevie Urban, Hal Weinstock, Thomas Robinson

"Church Bells in the Offing?" — NOVAPPLE merger (pages 1–2) — Bernard Urban

NOVAPPLE has agreed to a "trial marriage" — contributing articles, effort, money toward the newsletter. Phil Eastman (NOVAPPLE VP) is the contact. NOVAPPLE-sourced articles will carry a designation; mailing lists are merged.

Minutes of 4/28/79 (page 2)

Constitution and membership list distributed. Substantial discussion of free-exchange-of-marketed-programs question; motion passes to appoint a copyright research committee (Mort Simon and Fred Artiss) to report in 60 days. Tom Bottegal states no copying of copyrighted material allowed on GWU premises. Hersch Pilloff discussed DOS 3.2. Meeting adjourned to John Moon's 6502 class and program exchange.

Floppy disk storage envelopes (page 2)

Mark L. Crosby arranged a source for clear-vinyl mini-floppy storage sheets: 10-sheet sets with 20 floppy capacity for $6.40, fits a 3-ring binder.

"Something to Think About" — Jon Roland excerpts (pages 2–4) — Bernard Urban

Lengthy excerpts from Jon Roland's "The Microelectronic Revolution" in The Futurist (April 1979). Key concepts: "throughput density" (gate density × switching speed × transmission speed); the prediction that "during the next few years this microelectronic intelligence is likely to be incorporated into almost every product large enough to contain it"; the "dator" (Swedish term for combined computer/terminal) personal device prediction; the speculative picocomputer implanted in a person's skull; and Roland's claim that more than half of yellow-pages occupations will cease to exist. Urban's editorial coda: this could become an Orwellian 1984; "we as members of an 'in group' with knowledge of microcomputers have a responsibility to ensure that the future he portrays does not become warped." A remarkable mid-1979 statement of techno-ethics from a hobbyist newsletter.

Software Review: SINGLE DISK COPY (page 4) — Howard Richoux

Review of SINGLE DISK COPY from Peripherals Unlimited (Lakewood CA, ~$20). Loads a disk in three memory chunks and writes back to a second disk — saving the cost of a second drive. Available at Computers Plus. Richoux's wishlist: a file-compression option to defragment files while copying.

"Locating Integer BASIC Variables" (page 5) — John L. Moon

A small Integer BASIC routine that, given a variable name in ADDR$, returns Z6 = machine address of the data area (or -1 if undefined). Uses PEEK(74)+PEEK(75)*256 for the start of variables and PEEK(204)+PEEK(205)*256 for the end. Caveat: doesn't handle string-variable names yet.

"Floating Point in Integer BASIC" (pages 6–8) — John L. Moon

Promised in the previous issue. Walks through: - Why naive attempts to call the Monitor's floating-point routines bomb BASIC (the FP work area $F3-$FC overlaps BASIC's utility area) - A 4-byte FP representation: exponent byte (with $80 bias, sign in high bit) followed by 3-byte signed-magnitude mantissa - A normalized format (01.xxxxxx for positive, 10.xxxxxx for negative) - A machine-language wrapper at $300 that saves the BASIC utility area to $FF1C, copies operands $0-$7 into FP registers, calls the requested FP routine, restores everything - A reference table of FP entry points: Float $F451, Fix $F63D, Add $F46E, Subtract $F468, Multiply $F48C, Divide $F4B2, Abs $F432, Negate $F4A4 - A forward reference to next month's piece on SWEET 16, "Wozniack's 'Dream Machine'"

Research Associates SHAPE DESIGNER advertisement (page 9)

First paid advertisement in the journal. Research Associates (1373 "E" Street SE, Washington DC) — Mark Crosby's address — selling SHAPE DESIGNER on disk for $15.95. Interactive shape-table editor using U/D/L/R keys; assemble up to 255 shapes; needs Disk II and 32K recommended. "A long-awaited program, the SHAPE DESIGNER is a must for all APPLE owners."

"Music for Greenapples" (page 9) — Rick Hodder

Two-month series begins. Use the music subroutine on page 45 of the Apple Red Reference Manual; POKE pitch into location 0, duration into location 1. G scale: G=255, A=230, B=202, C=190, D=170, E=151, F=134, G=126. Durations: whole=150, half=120, quarter=100, eighth=50.

Biographical sketches (page 10)

Brief candidate bios — among the highlights: - Tom Bottegal — 5+ years computers; teaches CS 51, 52, 157, 158, 201 at GWU - Mark L. Crosby — 31, trade association in adult career ed, former music major - David T. Itkin — 17, 12th grade, uses an OSI at school - John L. Moon — BS CS Univ. of Florida, ACM member, Manager Software Architecture at IBM FSD Manassas, Va - Robert Peck — Lt. Commander, U.S. Navy (retired May 1, 1979), 30 years Navy medical service, Armed Forces Inst. of Pathology administrator - Bernard Urban — programming since 1951 on SEAC, UNIVAC, 1103, CIRCLE, IBM 704/709/etc.; co-chairs ACM Task Group #12 "Handicapped and Special Education" - Genevie Urban — 15 years programming SEAC, UNIVAC, IBM 701/705/709/7090/7094 before raising family

Club news / events / announcements

Notable advertisements

Key quotes

Entities

People: Bernard Urban, Genevie Urban, John Moon, Mark L. Crosby, John Ditman, Susan Eickmeyer, Sandy Greenfarb, Hal Weinstock, Robert Peck, Tom Bottegal, David T. Itkin, Mort Simon, Thomas Robinson, Rick Hodder, Phil Eastman, Fred Artiss, Hersch Pilloff, Howard Richoux, Jon Roland Topics: 6502 Machine Language, Integer BASIC, Floating Point Arithmetic, SWEET 16, HI-RES Graphics, Shape Tables, DOS 3.2, Copyright and Software Sharing, Apple Music, Microelectronic Revolution References: NOVAPPLE, The Futurist, SHAPE DESIGNER, Research Associates, SINGLE DISK COPY, Peripherals Unlimited, Computers Plus, George Washington University

Connections to other issues

Open questions