Memory sizes of DRAMs
author Neil Franklin, last modification 2004.04.04

assuming exponental growth, linear *2 and surface/bits *(2^2) every 3 years
actually seems to be more like 17 years than expected 3*5=15 years for *(2^10)

Year  Size  ExampleSystems(ChipCount-CPU+Video)
|     |
chip  (bits/chip)
intro (bytes/8-chip-memory)

1971    1K  Xerox MAXC and prototype Alto
1974    4K  product Alto(256), IMSAI(8), Apple I(8|16), Cromemco Video Dazzler
1977   16K  Apple ][(24), IBM PC(32), CGA(8), Dragon 32(16), Sincl Spectr(8|24)
1980   64K  Apple ][e(8|16), C64(8), PC/XT(8|16|32), EGA(8|32), Orig Mac(16)
1983  256K  PC/AT(16), VGA(8) Mac Plus (32), Orig Amiga(16), Atari ST(16)
1986    1M  typical 386 PC(8|16|32), Mac SE(8), Amiga 2000(8?), Atari MegaST(8)
1989    4M  typical 486 PC(8|16|32)
1992   16M  typical Pentium PC(8|16)
1995   64M  typical PPro/P2/K6 PC(8)
1998  256M  typical PIII/Athlon PC(8)
2001    1G  modern PC(8)
2004    4G  [future]
2007   16G     "
2010   64G     "
2013  256G     "
2016    1T     "