Laptop history & future

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Model R52
(1847 4BU)

R51
(1830BTU)

R40
(~2681-K3U)
A30
(~2652-43U)
A21m
(~ 2628-GSU)
A20m
(2628-WF1 ~3SU)
390E 380XD 380D 365XD 360CE
CPU

1.73 GHz Pentium M 740, (90nm Sonoma class, 533MHz FSB, 2M L2 cache)

1.5 GHz Pentium M (Dothan 2M 90nm/Banias 1M 130nm class? 400MHz FSB) 2.2 GHz Pentium 4m
400 MHz FSB
1.13GHz Pentium III-M
512KB L2 cache
133 MHz FSB
800 MHz Pentium III, 256KB L2 cache, 100MHz FSB 500 MHz Celeron, 256KB L2 cache Pentium II mobile, 256KB L2 cache, Dixon class 333MHz Pentium II 233MHz Pentium 150MHz Pentium 100MHz 486 DX2-50/25 MHz
RAM 1 GB PC2-4200 DDR 768MB 512MB 384MB 192MB So-DIMM SDRAM 128 MB 128MB 64MB 32MB 16MB 12MB
HD

80 GB

Hitachi 4200 rpm IC25N080ATMR04-0

(CTO - 5400rpm
Fujitsu MHT2080AH)

80 GB
4200rpm
IC25N080ATMR04-0

40 GB
ATA-100
30 GB
ATA-100
20 GB 12 (11.2) GB 6.4GB,
S.M.A.R.T. EIDE ATA-4
4GB 1.3GB 810MB 340MB
color/contrast 15" 1400:1050 15"
1024x768
15"
1024x768
15" 200:1 contrast 1024x768 14.1" 15" 14" 100:1 contrast active matrix 24-bit 1024x768 24-bit 100:1 HPA 800x600 16-bit 30:1dual-scan passive 16-bit dual-scan passive 8-bit active matrix
graphics

ATI Mobility Radeon X300, PCI Express, 64 VRAM

S-video out

ATI Mobility Radeon 9000 32M
AGP 4x


S-video out

ATI Mobility Radeon 7500 32M DDR SGRAM/SDRAM (350MHz Internal DAC) AGP 4x
S-video out

ATI Mobility Radeon 16M RAM AGP 4x
S-video out

ATI Mobility-M1 8 MB AGP 2x ATI Mobility-M1 8 MB VRAM AGP 2x NeoMagic MagicGraph256AV 256-bit AGP, 2.5MB VRAM, ZV, MPEG-1, S-Video out, 1280x1024 external monitor, dual screen support PCI, ZV, MPEG1 PCI, ZV PCI VL
Optical & others 8x DVD±RW/CD-RW UltraBay Enhanced
Matshita DVD-RAM UJ-830S
DVD-RW/CD-RW 2x UltraBay Enhanced drive
Matshita DVD-RAM UJ-811
CD-RW/DVD-ROM+ combo drive (24x 10x 24x 8x)

Matshita (KME) UJDA 740 or LG
Ultrabay Plus

CD-RW/DVD-ROM+ combo drive (8x 8x 8x 24x)
Ultrabay Plus

CD-RW 8x/4/24x CD ROM 10-24x removable DeviceBay/UltraBay FX 10-24x CD, optional DVD 10-24X 8X 4X none, 2X external
Others

one PC Card Type I/II/III 32-bit slot (Ricoh R/RL/5C476(II))

one ExpressCard/34 | ExpressCard/54 slot

ThinkLight
UltraNav (dual)

SecureChip

132MBps PC Card

ThinkLight
UltraNav

SecureChip

No Floppy
No PS2
No serial
No DVI via port replicator
One Type II/III Cardbus (No ZoomVideo)
ThinkLight
UltraNav

Ultrabay 2000 floppy
2 Type II./III CardBus
ThinkLight
2 Type II/III CardBus
ThinkLight
2 Type II/III CardBus (w/ ZV port)
ThinkLight
         
Audio

integrated microphone

SoundMAX Integrated Digital Audio - Analog Devices AD1981B AC'97 2.2 Soft Audio (Full-duplex)

Stereo speaker on bottom front

external mic (mono) and speaker (stereo), no line-in

SoundMAX Integrated Digital Audio integrated microphone
SoundMAX Integrated Digital Audio
      ESS Solo-1, 0.1W, Altec Lansing stereo speakers SoundBlaster Pro compatible, stereo speaker + subwoofer      
network

two USB 2.0

one 4 pin IEEE-1394a

Broadcom NetXtreme GigaBit
Ethernet mPCI

IBM 802.11a/b/g Wi-Fi wireless mPCI II (Atheros)

IBM Integrated Bluetooth IV (Broadcom 1.x)

4Mbps Fast IrDA

2x USB 2.0


4-pin IEEE-1394a

Intel PRO/1000 MT Ethernet

802.11a/b/g Tri-mode Wi-Fi wireless (Philips)

2x USB 2.0


4 pin TI OHCI IEEE-1394a FireWire

built-in Intel PRO/100 VE Ethernet

4Mbps IrDA

USB 1.1
built-in 10/100 Ethernet
4Mbps IrDA
USB 1.1
built-in 10/100 Ethernet
4Mbps IrDA

USB 1.1
built-in 10/100 Ethernet
4Mbps IrDA

100Mbps 32-bit Cardbus,USB, 4Mbps IrDA. Press-to-Select TrackPoint 100Mbps 32-bit Cardbus,USB, 4Mbps IrDA. 10Mbps 16-bit PC Card, 4Mbps IrDA 10Mbps 16-bit PCMCIA Card, 115Kbps IrDA, 1Mbps AMP wireless 10Mbps 16-bit PCMCIA Card, 2Mbps IBM wireless
modem IBM CXT (Conexant) v. 92 CDC IBM Integrated 56K
CXT - Conexant Systems Inc.'s HSF (softmodem)
56Kbps v. 92 Agere Systems AC'97 v. 92 v. 90 v. 90 56Kbps V90 56Kbps V90 XJack 33.6/28.8 Kbps 14.4 Kbps 14.4 Kbps
OS XP-sp2 Professional XP-sp1a Professional XP-sp1a Professional XP Professional 98SE 98SE 98 95b (OSR2.1) 95b (OSR 2) 95a 95/WfWg 3.11
Weight 6.6 lbs 6.6 lbs 6.6 lb. 7.4 lb. 6.7 lb. 6.9 lb 7.7 lbs 7.2 lbs      
Battery Li-Ion 6-cell 4.4Ah 10.8V Li-Ion Li-ion Li-ion Li-ion Li-ion Li-Ion 3.8 hours Li-Ion NiMH? NiCad? NiCad?
  Not really a A20, look the same as A21m
Image Credits