Apple I

introduced:	1976.7
terminated:	1977.9
CPU:	MOS Technology 6502
PROM:	256byte
RAM:	4KB
PRICE:	$666.66
Total	About 200 units

Apple II

introduced:	1977.7
terminated:	1980
CPU:	MOS Technology 6502 1 MHz
PROM:	12 KB
RAM:	4 k (maximum 64 KB)
PRICE:	$1298
Total

Apple II+

introduced:	1979.6
terminated:	1980
CPU:	MOS Technology 6502 1 MHz
PROM:	12 KB
RAM:	4 k (maximum 64 KB)
PRICE:	$1195
Total

Apple IIe

introduced:	1983.1.19 1985.3Enhanced 1987.3 Extened
terminated:	1993.11
CPU:	MOS Technology 6502 1 MHz
PROM:	12 KB
RAM:	4 KB (maximum 64 KB)
PRICE:	$1395
Total	About 65,000 units

Apple ///

introduced:	1980.5.19,1983.12 Apple///+ $2995
terminated:	1985.9
CPU:	Synertek 6502A 2 MHz
PROM:	12 KB
RAM:	4 k (maximum 64 KB)
PRICE:	$7800
Total

Apple //c

introduced:	1984.4.24
terminated:	1988.8
CPU:	MOS Technology 65C02 1 MHz
PROM:	16 KB
RAM:	128KB
PRICE:	$1295
Total

Apple //c+

introduced:	1988.9
terminated:	1990.11
CPU:	MOS Technology 65C02 4 MHz
PROM:	32 KB
RAM:	128KB
PRICE:	$675
Total

Apple IIGS

introduced:	1986.9
terminated:	1992.12
CPU:	65C816 1 or 2.8 MHz
PROM:	256 KB
RAM:	256 KB or 1 MB
PRICE:	$999
Total

Reference:
http://oldcomputers.net/