Ksconf LDA

1233	893B	49	07			EOR	#$07
1234	893D	D0	05			BNE	LK1
1235	893F	2C	00	A4		BIT	PADA
1236	8942	30	1A			BMI	NOKEY
1237	8944	C9	04		LK1	CMP	#$04
1238	8946	90	02			BCC	LK2
1239	8948	A9	03			LDA	#$03
1240	894A	0A			LK2	ASL	A
1241	894B	0A				ASL	A
1242	894C	0A				ASL	A
1243	894D	0A				ASL	A
1244	894E	0A				ASL	A
1245	894F	0A				ASL	A
1246	8950	18				CLC
1247	8951	6D	3F	A6		ADC	SCRF
1248	8954	A2	19			LDX	#$19
1249	8956	DD D6 8B			LK3	CMP	SYM,X
1250	8959	F0	05			BEQ	FOUND
1251	895B	CA				DEX
1252	895C	10	F8			BPL	LK3
1253	895E	E8			NOKEY	INX
1254	895F	60				RTS
1255	8960	8A			FOUND	TXA
1256	8961	18				CLC
1257	8962	6D	55	A6		ADC	KSHFL
1258	8965	AA				TAX
1259	8966	BD EF 8B				LDA	ASCII,X
1260	8969	60				RTS
1261	896A	20	23	89	KYSTAT JSR KEYQ			;KEY DOWN? RETURN IN CARRY
1262	896D	18				CLC
1263	896E	F0	01			BEQ	*+3
1264	8970	38				SEC
1265	8971	60				RTS
1266	8972	20	88	81	BEEP	JSR SAVER		;DELAY (BOUNCE) W/BEEP
1267	8975	A9	0D		BEEPP3 LDA		#$0D
1268	8977	20	A5	89	BEEPP5 JSR		CONFIG
1269	897A	A2	70			LDX	#$70	;DURATION CONSTANT
1270	897C	A9	08		BE1	LDA	#8
1271	897E	8D	02	A4		STA	PBDA
1272	8981	20	95	89		JSR	BE2
1273	8984	A9	06			LDA	#6
1274	8986	8D	02	A4		STA	PBDA
1275	8989	20	95	89		JSR	BE2
1276	898C	CA				DEX
1277	898D	D0	ED			BNE	BE1
1278	898F	20	A3	89		JSR	KSCONF
1279	8992	4C	C4	81		JMP	RESALL
1280	8995	A0	1A		BE2	LDY	#$1A
1281	8997	88			BE3	DEY
1282	8998	D0	FD			BNE	BE3
1283	899A	60				RTS
1284	899B	20	88	81	NOBEEP JSR SAVER			;DELAY W/O BEEP
1285	899E	A9	01			LDA	#$01
1286	89A0	4C	77	89		JMP	BEEPP5	;(BNE BEEPP5, $FF)
1287	89A3	A9	01		KSCONF LDA		#$1	;CONFIGURE FOR KEYBOARD
1288	89A5	20	88	81	CONFIG JSR		SAVER	;CONFIGURE I/O FROM TABLE VAL
1289	89A8	A0	01			LDY	#$01
1290	89AA AA					TAX
1291	89AB BD C8 8B				CON1	LDA	VALSP2,X
1292	89AE 99 02 A4					STA	PBDA,Y
1293	89B1	BD C6 8B				LDA	VALS,X
1294	89B4	99	00	A4		STA	PADA,Y

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 Ksconf LDA

Models: II

EOR

CMP

ADC

CMP

TXA

ADC

TAX

TAX

II specifications