Whereo LDY

1283	E81E 8D		16	A4	PSL0C	STA	CURPOS
1284	E821	A2	00			LDX	#0
1285	E823	B9	38	A4	PSL0D	LDA	DIBUFF,Y	;TRANSFER THEM
1286	E826	9D	60	A4		STA	IBUFM,X
1287	E829	E8				INX
1288	E82A C8					INY
1289	E82B EC		16	A4		CPX CURPOS		;PRI PNTR
1290	E82E 90		F3			BCC	PSL0D
1291	E830	20	38	F0		JSR	OUTPR	;CLR PRI BUFF TO THE RIGHT
1292	E833	20	AC EB			JSR PLXY		;RESTORE X,Y
1293	E836	60				RTS
1294	E837	A9	2F		PSL1	LDA #'/'		;PRINT "/"
1295	E839	D0	91			BNE	PR1
1296	E83B
1297	E83B 20		3E	E8	BLANK2 JSR BLANK			;TWO SPACES
1298	E83E A9		20		BLANK	LDA	#' '
1299	E840	D0	8A			BNE	PR1
1300	E842
1301	E842				;CHECK TTY/KBD SWITCH (Z=1 FOR TTY)
1302	E842	A9	08		TTYTST LDA #$08			;CHECK IF TTY OR KB
1303	E844	2C	00	A8		BIT DRB		;TTY OR KB SWICTH =PB3
1304	E847	60				RTS
1305	E848
1306	E848				;WHERE IS INPUT COMING FROM?
1307	E848				;SET UP FOR INPUT ACTIVE DEVICE
1308	E848	A0	2A		WHEREI LDY #M9-M1			;PRINT "IN"
1309	E84A 20		70	E9		JSR KEPR		;OUTPUT MSG AND INPUT CHR
1310	E84D 8D		12	A4		STA	INFLG
1311	E850	C9	54			CMP	#'T'
1312	E852	D0	08			BNE	WHE1
1313	E854	A2	00			LDX	#0	;FOR INPUT FILE FLG
1314	E856	20	A2	E8		JSR	FNAM	;OPEN FILE FOR TAPE (1 OR 2)
1315	E859	4C	2F	E3		JMP	LOADTA	;GET FILE
1316	E85C C9		4B		WHE1	CMP	#'K'	;TAPE WITH KIM FORMAT
1317	E85E D0		08			BNE	WHE2
1318	E860	A2	00			LDX	#0	;FOR INPUT FILE FLG
1319	E862	20	A2	E8		JSR	FNAM	;OPEN FILE FOR TAP (1 OR 2)
1320	E865	4C	A4	E3		JMP	LOADKI	;THE WHOLE FILE
1321	E868	C9	55		WHE2	CMP	#'U'	;USER RTN?
1322	E86A D0		04			BNE	WHE3
1323	E86C 18					CLC		;SET FLG FOR INITIALIZATION
1324	E86D 6C		08	01		JMP (UIN)		;USER INPUT SETUP
1325	E870	60			WHE3	RTS
1326	E871
1327	E871				;WHERE IS OUTPUT GOING TO?
1328	E871				;SET UP FOR OUTPUT ACTIVE DEVICE
1329	E871	A0	2D		WHEREO LDY		#M10-M1	;PRINT "OUT"
1330	E873	20	70	E9		JSR	KEPR	;OUTPUT MSG & INPUT CHR
1331	E876	8D	13	A4		STA OUTFLG		;DEVICE FLG
1332	E879				;TAPES
1333	E879	C9	54			CMP	#'T'
1334	E87B D0		08			BNE	WHRO1
1335	E87D A2		01			LDX	#1	;FOR OUTPUT FILE FLG
1336	E87F 20		A2	E8		JSR	FNAM	;FILENAME & TAPE (1 OR 2)
1337	E882	4C	6F	E5		JMP	DUMPTA	;INITIALIZE FILE
1338	E885	C9	4B		WHRO1	CMP	#'K'	;TAPE WITH KIM FORMAT
1339	E887	D0	05			BNE	WHRO2
1340	E889	A2	01			LDX	#1	;FOR OUTPUT FILE FLG
1341	E88B 4C		A2	E8		JMP	FNAM
1342	E88E				;PRINTER
1343	E88E C9		50		WHRO2	CMP #'P'		;PRINTER?
1344	E890	D0	05			BNE	WHRO3

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 Whereo LDY

Models: II

CMP

CMP

CMP

CMP

CMP

II specifications