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IBM Thinkpad 310

IBM ThinkPad 310ED
Manufacturer	IBM
Type	Notebook Computer
Release date	June 1997; 26 years ago (1997-06)
Introductory price	Starting at US$1,600 (equivalent to $3,037 in 2023)
Operating system	Windows 95
CPU	Pentium I @ 133 or 165 MHz
Memory	16-32 MB

IBM ThinkPad 310 was a notebook computer series introduced in 1997 by the IBM corporation into the market as part of their ThinkPad laptop series. It was succeeded by the ThinkPad 380 series.

Features

All models shipped with Windows 95 OSR2 but were capable of running up to Windows XP, if they have a sufficient RAM upgrade, as well as several Linux variations. They could also run older operating systems such as Windows 3.1.

All models featured a Socket 7 Intel Pentium I or MMX processor running at 133 to 166 MHz, a CT-65550 video chip with 1 MB of video memory, and a Yamaha YMF715 audio controller. The standard memory size was 16 MB, with up to 32 MB max if upgraded.

The ThinkPad models ending with a D included a CD-ROM drive; the rest included a 1.44 MB floppy disk drive. Models with a CD-ROM drive had a proprietary external floppy disk drive port on the back.

Models

IBM ThinkPad 310 — The base model released only in Europe, it featured an Intel Pentium I running at 133 MHz, 16 MB of soldered EDO RAM, standard 1.08 GB hard drive, and a non-removable 1.44MB floppy disk drive. It also had an 11.3" 800x600 DSTN display with the additional option of an 11.3" 800x600 TFT display. Other features included: NiHM battery, Trackpoint, (2) Type II CardBus slots or (1) type III.
IBM ThinkPad 310D — Released alongside the 310 but available worldwide, it had essentially the same specifications as the base 310 model, with the only difference of a CD-ROM drive over the 1.44 floppy disk drive. It also only had an 11.3" 800x600 DSTN display over the base 310's additional TFT display option.
IBM ThinkPad 310E — Made available late 1997, the E had a few new features. It featured an Intel Pentium MMX 166 MHz processor, 16 MB of soldered EDO RAM, 1.6 or 2.1 GB hard drive size options, and a 1.44 MB floppy disk drive. It came with a larger 12.1" 800x600 DSTN display with the additional option of an 11.3" 800x600 TFT display. It also came with a NiHM battery which could last up to 2.8 hours on one charge.^[1] Other features included: Trackpoint, (2) Type II CardBus slots or (1) type III.
IBM ThinkPad 310ED^[2]^[3]^[4] — The last model in the series also available late 1997, it was basically the same as the 310E, with the only difference of a CD-ROM drive and only offering a 12.1" 800x600 DSTN display option. The 310ED introduced the additional option to come standard with 32 MB of ram.

Comparison

Note - the "D" in the model number signifies the machine had the updated chassis with provision for fitment of a CD-ROM drive, or when using an adapter plate, an internal floppy disk drive. The models without the "D" didn't officially come with the updated chassis. For more detailed specifications and most model versions: https://psref.lenovo.com/syspool/Sys/PDF/withdrawnbook/twbook.pdf
Model	Introduction Date	Withdrawal Date	Base Price	Display Options		Resolution	CPU	Memory	Video Controller	Audio Controller	Hard Drive Options			Misc Info
Model	Introduction Date	Withdrawal Date	Base Price	DSTN	TFT	Resolution	CPU	Memory	Video Controller	Audio Controller	Hard Drive Options			Misc Info
310 (EMEA)	Jun 1997	Jan 1998	?	11.3" Color	11.3" Color	640x480 800x600	Pentium I - 133 MHz 66 MHz Bus 256 KB cache	16-64 MB 60 ns EDO	CT65550 1 MB DRAM PCI 2.1	Yamaha YMF715	1.08GB	2.1GB		1.44 MB FDD NiHM Battery - 2.5 hr
310D (EMEA)	Jun 1997	Jan 1998	?	12.1" Color	12.1" Color		Pentium I - 133 MHz 66 MHz Bus 256 KB cache				1.08GB	2.1GB		Ext. 1.44 MB FDD 10x CD-ROM NiHM Battery - 2.5 hr
310E (EMEA)	Nov 1997	Jul 1998	?	12.1" Color	11.3" Color		Pentium I - 133 or 150 MHz MMX 66 MHz bus 256 KB cache				1.6GB	2.1GB	3.2GB	1.44 MB FDD NiHM Battery - 3 hr
310ED (EMEA)	Nov 1997	Jul 1998	?	12.1" Color	-		Pentium I - 133 or 150 MHz MMX 66 MHz bus 256 KB cache				1.6GB	2.1GB	3.2GB	Ext. 1.44 MB FDD 10x CD-ROM NiHM Battery - 3 hr
310E (EMEA) (Spring 1998)	Mar 1998	Sep 1998	?	12.1" Color	12.1" Color		Pentium I - 166 MHz MMX 66 MHz bus 256 KB cache				2.1GB	3.2GB		1.44 MB FDD NiHM Battery - 3 hr
310ED (EMEA) (Spring 1998)	Mar 1998	Sep 1998	?	12.1" Color	-		Pentium I - 166 MHz MMX 66 MHz bus 256 KB cache				2.1GB	3.2GB		Ext. 1.44 MB FDD 20-8x CD-ROM NiHM Battery - 3 hr
310ED (Retail)	Nov 1997	Sep 1998	?	12.1" Color	-		Pentium I - 133 or 166 MHz MMX 66 MHz bus 256 KB cache				1.6GB	2.1GB	3.2GB	Ext. 1.44 MB FDD 10x or 20-8x CD-ROM NiHM Battery - 3 hr

References

External links

IBM personal computers

Desktop
and all-in-one

Single models	5120 DataMaster PC list of models PC XT XT/370 3270 PC XT 286 JX PCjr PC AT AT/370 3270 AT
Series	Industrial Computer 5550 PS/2 list of models 25 25 286 25 SX 30 30 286 E PS/55 Industrial System PS/V PS/1 EduQuest ValuePoint Ambra PC Series Aptiva NetVista ThinkCentre A series M series

Portable

Laptop

non-ThinkPad

Convertible
PS/2 Laptop
- L40 SX
- CL57 SX
PS/2 Note and PS/note
- N33SX
- N45SL
- N51SX
- N51SLC
- Model 425/425C
PS/55 Note
PCradio

ThinkPad

2xx series	220 230 235 240
3xx series	300 310 350 360 365 380 390
5xx series	500 550BJ 555BJ 560 570
6xx series	600
7xx series	700 701 "Butterfly" 750 760 765 770
Power Series	800 820 821 822 823 850 851 860

G series	G40 G41 G50
T series	T20 T21 T22 T23 T30 T40 T41 T42 T43 T60 T61
A series	A20m A21m A22m A22e A20p A21p A22p A30 A31 A30p A31p
X series	X20 X21 X22 X23 X24 X30 X31 X32 X40 X41 X60 X60t X61t
R series	R30 R31 R32 R40 R50 R51 R52 R60 R61
Others	TransNote

Handheld

Prototypes