Msg

1221	E7A9 20 AF E7				TO1	JSR	KEP
1222	E7AC 4C B1 EA					JMP ADDNE		;GET ADDRESS
1223	E7AF
1224	E7AF				;PRINT	MSG	POINTED TO BY Y REG
1225	E7AF B9 00 E0				KEP	LDA	M1,Y
1226	E7B2 48					PHA
1227	E7B3 29 7F					AND #$7F		;STRIP OFF MSB
1228	E7B5 20 7A E9					JSR	OUTPUT
1229	E7B8 C8					INY
1230	E7B9 68					PLA
1231	E7BA 10 F3					BPL KEP		;MSB =1 ?
1232	E7BC 60					RTS
1233	E7BD
1234	E7BD				;PRINT "*" ,BUT NOT TO TAPE RECORDER, NOR LOADING....
1235	E7BD				;PAPER TAPE OR TO DISPLAY
1236	E7BD AD 12 A4				PROMPT LDA INFLG			;WHICH DEV (FOR EDITOR)
1237	E7C0 C9 54					CMP #'T'		;NO PROMPT IF "T" OR "L"
1238	E7C2 4C EF FE					JMP	PATC11
1239	E7C5 20 42 E8				PROMP1 JSR		TTYTST	;PROMPT ONLY TO TTY
1240	E7C8 D0 05					BNE	PR2	;BRANCH ON KB
1241	E7CA A9 2A					LDA	#'*'
1242	E7CC 4C 7A E9				PR1	JMP	OUTPUT	;ONLY TO TERMIN
1243	E7CF A9 0D				PR2	LDA	#CR	;CLR DISP
1244	E7D1 4C 05 EF					JMP	OUTDIS
1245	E7D4
1246	E7D4 A9 3F				QM	LDA #'?'		;PRINT "?"
1247	E7D6 D0 F4					BNE	PR1
1248	E7D8
1249	E7D8 A9 3D				EQUAL	LDA #'='		;PRINT "="
1250	E7DA D0 F0					BNE	PR1
1251	E7DC
1252	E7DC				;ON DELETE		KEY OUTPUT SLASH IF TTY & ....
1253	E7DC				;BACK UP CURSOR IF KB (MAY NEED SCROLLING)
1254	E7DC 20 42 E8				PSLS	JSR TTYTST		;TTY OR KB ?
1255	E7DF F0 56					BEQ PSL1		;BRANCH ON TTY
1256	E7E1 20 9E EB					JSR PHXY		;SAVE X,Y
1257	E7E4 CE 15 A4					DEC CURPO2		;DECR DISP PNTR
1258	E7E7 AE 15 A4					LDX	CURPO2
1259	E7EA E0 14					CPX	#20	;IF MORE THAN 20 JUST SCROLL THEM
1260	E7EC B0 0D					BCS	PSL0
1261	E7EE A9 20					LDA	#' '	;< 20 ,SO CLR CUR
1262	E7F0 20 02 EF					JSR	OUTDP1
1263	E7F3 CE 15 A4					DEC	CURPO2
1264	E7F6 4C 02 E8					JMP	PSL00
1265	E7F9 EA					NOP
1266	E7FA EA					NOP
1267	E7FB 20 F8 FE				PSL0	JSR PATC12		;CLR PRIFLG
1268	E7FE CA					DEX		;ONE CHR LESS
1269	E7FF 20 2F EF					JSR	OUTD2A	;SCROLL THEM
1270	E802	AD 15 A4			PSL00	LDA	CURPO2	;DISBUF---> PRIBUFF
1271	E805	C9	15			CMP	#21
1272	E807	90	13			BCC	PSL0B
1273	E809	C9	29			CMP	#41
1274	E80B 90 07					BCC	PSL0A
1275	E80D A0 28					LDY	#40	;CHR 40-59
1276	E80F E9 28					SBC	#40
1277	E811	4C	1E	E8		JMP	PSL0C
1278	E814	A0	14		PSL0A	LDY #20		;CHR 20-39
1279	E816	38				SEC
1280	E817	E9	14			SBC	#20
1281	E819	4C	1E	E8		JMP	PSL0C
1282	E81C A0 00				PSL0B	LDY	#0	;CHR 00-19

II specifications

The Apple II, launched in April 1977, was one of the first highly successful mass-produced microcomputer products. It marked a significant leap in personal computing, setting standards for future developments in the industry. Created by Steve Wozniak and Steve Jobs, the Apple II differentiated itself with its user-friendly design, appealing aesthetics, and robust capabilities.

One of the standout features of the Apple II was its open architecture, which allowed users to expand and enhance the computer's functionality. This design enabled hundreds of third-party hardware and software developers to contribute to its ecosystem, resulting in an array of peripherals, including printers, modems, and storage devices. The Apple II utilized a MOS Technology 6502 microprocessor running at a clock speed of 1 MHz. Initially equipped with 4 KB of RAM, the machine could be expanded to 48 KB, accommodating more complex applications and programs.

The Apple II was also notable for its colorful graphics. It was one of the first computers to support color display, offering a 6-color palette with a resolution of 280x192 pixels in 16 colors when using its Color Graphics Card. This feature significantly enhanced the visual appeal of games and educational software developed for the platform, making computing more accessible and entertaining for various audiences.

Apple's commitment to user experience was evident in the design of the machine. It featured an integrated keyboard and a plastic case, which was both durable and visually appealing. The self-contained design included drive bays for floppy disk drives, allowing for quicker data access than traditional tape drives. It also supported audio output, enabling sound effects and music, a novelty at the time.

The introduction of the Apple DOS operating system further underscored the machine's capabilities. DOS streamlined file management and made it easier for users to navigate and manage their data. The combination of hardware and software positioned the Apple II as an educational tool and a gaming platform, fostering a vibrant software ecosystem.

The Apple II family continued to evolve, with variations like the Apple II+, IIe, and IIgs being introduced over the years. These iterations brought enhancements in memory, processing power, and graphics capabilities. The legacy of the Apple II endures, not only as a foundational product in personal computing but also as a symbol of innovation that paved the way for future advancements in technology. Its impact is still felt today, as it inspired countless developers and shaped the trajectory of the computer industry.

Apple II manual Msg

Models: II

CMP

CMP

II specifications