PCMCIA: 
   The 720 and 720C PCMCIA slot can accommodate two Type I, Type II or one Type III PC cards.  The chipset conforms to the PCMCIA PC Card Standard Release 2.01 and the PCMCIA Card and Socket Services Specification Release 2.0, dated November 1992.  This emerging standard allows for the insertion of many devices, such as mass storage, memory and communications.
       The PCMCIA Device Driver Diskette comes with the system unit and contains PCMCIA Socket Services Release 2.0 for DOS, PCMCIA Card Services Release 2.0 for DOS and PCMCIA Socket Services Release 2.0 for OS/2 (R). (Ed. Not supported under W9x or NT.)
       The ThinkPad systems also support a Suspend/Resume function when the PCMCIA card is installed.  For example, when the user is operating with a communications application and PCMCIA card, after a Suspend/Resume operation the user does not need to restart the operating system or communications application.  Refer to LIMITATIONS section.
o   When  ejecting  PCMCIA  cards,  ejection of both cards will occur when two PCMCIA Type I or Type II  cards are  installed  at  the same time.
 

TRACKPOINT II:
   The ThinkPad 720 and 720C provides a unique cursor-pointing device called TrackPoint II, which is built into the keyboard.  It works like the mouse and allows the user to point and select icons on the screen under control of the application.  It consists of a device that stands between the "G" and "H" keys, accompanied by two "Click-Buttons", which are positioned below the space-bar.  The device reacts to pressure from the finger-tip and the left button is used for selecting or dragging items on the screen. The right button simulates the Enter key in some applications.

DISPLAY (MONOCHROME): 
   A 9.5-inch diagonal LCD, Supertwisted Neumatic (STN) 640 x 480 pels, Video Graphics Array (VGA) resolution, cold florescent sidelighted display with an 18 to 1 contrast ratio. Depending on the application, up to 64 grey scales can be addressed. It displays black characters on a white background and it may be reversed to a white on black mode by a simple switch operation.

DISPLAY (COLOR):
   A 10.4-inch diagonal color LCD, thin film transistor (TFT) 640 x 480 pels, Video Graphics Array (VGA) resolution, cold fluorescent sidelighted display with a 100 to 1
(minimum) contrast ratio.  Depending on the  application, 256 colors are available simultaneously out of a palette of 4,096 colors in VGA mode (640 x 480).  There are over 921,000 thin film transistors used in its construction, and with advanced manufacturing techniques a defect rate of less than .00002 can be maintained.  This quality state of the art VGA screen provides clear, bright, vibrant colors approaching cathode-ray-tube technology.

The external input device port can have the following devices connected:
-   IBM PS/2 Miniature Mouse (#5443, 07G0033)
-   IBM PS/2 Numeric Keypad (#5445, 07G0032)
-   IBM PS/2 Keyboard/Mouse Connector (#3145, 54G0441).
           The IBM PS/2 Keyboard/Mouse Connector is required when:
    -   Attaching an external keyboard
    -   Attaching an external keyboard and mouse.

Lind Electronics DC Power Adapter Model # IB2020-154 
  Automotive DC adapter.$89.95 list.
Housed in indestructible extruded aluminum cases & sealed for durability!
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Use in Car, RV, Boat or any 12VDC source!
3 year warranty includes repair of damaged or broken plugs or cables! 

AC ADAPTER: 
   The AC adapter is an AC to DC converter which supplies the necessary power to the computer. The AC adapter also charges the battery pack when it is installed in the computer.
 o   Input rating:  100-240 V AC, 2.0A, 50/60Hz
o   Output rating:
    -   +20 V DC 2.0 A
    -   +20 V DC 2.5 A (Expansion Cartridge attachment)
    -   Battery Pack:  10.8 V DC, 1450mAH/cell, 18 cell/pack
o   Operating temperature 5 -- 35 (degs) C (41 -- 95 (degs) F).

NIMH BATTERY PACK:
o   Rechargeable battery pack for 4 to 8 hours (monochrome) or 2.4 to 4.8 hours (color) of use, depending on operating, environmental and application characteristics.  When on AC power, an idle or operating system unit can charge the battery in approximately 1.5hours (mono/color).  The system internal quick charge takes approximately 1.4 hours (monochrome/color) during Suspend and power-off with AC adapter connected.
o   The battery pack is an internal power source to the computer when the AC adapter is not available.  The battery pack is rechargeable and is charged using the AC adapter or the ThinkPad  Quick Charger, which can charge two battery packs simultaneously. With a fully charged battery pack, the user can operate the computer up to 8 hours (monochrome) or 4.8 hours (color) depending on the application and the configuration usage.  PC Cards that do not support the power management function may cause  the shorter battery operation hours.
       In summary, the battery operation hours and charging hours are:

FUNCTION                             MONOCHROME          COLOR
Power off/Suspend charging           1.4 hours           1.4 hours
Charging during operation            1.5 hours           1.5 hours
Quick charging                       1.4 hours           1.4 hours
Suspend Life (Full) (*)              48  hours           36  hours
Suspend Life (Partial) (*)           6.0 hours           6.0 hours
Battery Operation Hours (**)         4.0 - 8.0 hours     2.4 - 4.8 hours
 
 (*) Full battery.
 (**) Power management and application dependent.
       The ThinkPad 700 and 720C systems also support a suspend/resume function when the PCMCIA card is installed.  For example, when you are operating with the communication application with PCMCIA cards, after suspend/resume you do not need to restart the operating system and communication application.

NIMH BATTERY PACK WITH POWER STATUS INDICATORS: 
   A rechargeable battery pack with five power status LED indicators and one push button located on the front bezel of a battery pack.  These five LEDs show how much the battery power remains when the user is pushing the button.  In full-charged state, all five LEDs are lit.  One LED means
about 20% of battery power.  The battery operation hours and charging times are the same as those of the standard NiMH battery pack.

QUICK CHARGER: 
  The quick charger has two slots to charge two battery packs simultaneously.  Charging begins on the first battery pack installed, then after it is completely charged, the other installed battery pack is charged.  A REFRESH BUTTON is provided for each battery pack slot to DISCHARGE the battery packs before charging them.  There are identifiers and indicators that tell the charging
status for each battery pack installed.

SECURITY BASE:
   It is designed to prevent unauthorized operation of the computer in the following ways:
o   Bolts down the system on the desk
o   Keylocks system in the security base with the hard disk locking mechanism (padlock optional)
o   Prevents removal of hard disk
o   Prevents removal of IC DRAM cards and coprocessor
o   Prevents access to the screw holes in the system
o   Prevents access to the system expansion and I/O connectors.

SECURITY UTILITY DISKETTE: 
   The user can set a privileged access password to the system to limit the use of the system program.  Once the password is set, the boot drive selection and/or an I/O port usage can be protected from tampering by any of the reference diskettes.

THINKPAD 700/720 OPTIONS AND ACCESSORIES
|--------+----------------+-----+-----+-----+-----+------------|
|Part #  |Description     | 700 | 700C| 720 | 720C|Comments    |
|--------+----------------+-----+-----+-----+-----+------------|
|53G9140 |NiMH Battery    |     |     |     |     |            |
|        |  with Battery  |     |     |     |     |            |
|        |  Indicator     |  Y  |  Y  |  Y  |  Y  |New on 700/700C
|54G0132 |160MB HDD       |  Y  |  Y  |  Y  |  Y  |New on 700/700C 
|53G9263 |240MB HDD Kit   |  N  |  N  |  Y  |  N  |720 only    |
|53G9275 |240MB HDD Kit   |  N  |  N  |  N  |  Y  |720C only   |
|66G3219 |240MB HDD Kit   |  Y  |  N  |  N  |  N  |700 only    |
|66G3220 |240MB HDD Kit   |  N  |  Y  |  N  |  N  |700C only   |
|66G3221 |240MB HDD Kit   |     |     |     |     |           |
|        |  SLC2          |  Y  |  N  |  N  |  N  |700 + SLC2 only 
|66G3222 |240MB HDD Kit   |     |     |     |     |            |
|        |  SLC2          |  N  |  Y  |  N  |  N  |700C + SLC2 only 
|53G9714 |Port Replicator |  Y  |  Y  |  Y  |  Y  |New on 700/700C 
|0933315 |3270 Emulation  |  N  |  N  |  Y  |  Y  |PCMCIA Card |
|0933462 |Token-Ring 16/4 |  N  |  N  |  Y  |  Y  |PCMCIA Card |
|0933290 |Ethernet 10BaseT|  N  |  N  |  Y  |  Y  |PCMCIA Card |
|0933280 |Ethernet 10Base2|  N  |  N  |  Y  |  Y  |PCMCIA Card |
|42G2581 |Data/FAX Modem  |  N  |  N  |  Y  |  Y  |PCMCIA Card |
|42G2582 |14.4 Data/FAX   |     |     |     |     |            |
|        |  Modem         |  N  |  N  |  Y  |  Y  |PCMCIA Card |
'--------+----------------+-----+-----+-----+-----+------------'
.--------------------------------------------------------------.
|EXISTING OPTIONS                                              |
|--------+----------------+-----+-----+-----+-----+------------|
|49G2163 |AC Adapter 25W  |  Y  |  N  |  N  |  N  |700 only    |
|49G2165 |AC Adapter 40W  |  Y  |  Y  |  Y  |  Y  |            |
|49G2166 |NiMH Battery    |  Y  |  Y  |  Y  |  Y  |            |
|49G2167 |Car Lighter     |     |     |     |     |            |
|        |  Adapter       |  Y  |  Y  |  Y  |  Y  |700C/720C Limits 
|49G2169 |KeyGuard        |  Y  |  Y  |  Y  |  Y  |Physically Impaired 
|49G2170 |External Quick  |     |     |     |     |            |
|        |  Charger       |  Y  |  Y  |  Y  |  Y  |            |
|49G2172 |Security Base   |  Y  |  Y  |  Y  |  Y  |            |
|49G2173 |Security        |     |     |     |     |            |
|        |  Diskette      |  Y  |  Y  |  Y  |  Y  |            |
|54G0133 |120MB HDD       |  Y  |  Y  |  Y  |  Y  |            |
|54G0180 |Communications  |     |     |     |     |            |
|        |  Cartridge     |  Y  |  Y  |  Y  |  Y  |            |
|54G0441 |Keyboard Mouse  |     |     |     |     |            |
|        |  Connect       |  Y  |  Y  |  Y  |  Y  |            |
|54G0445 |Battery Cover   |  Y  |  Y  |  Y  |  Y  |Safety Cover 
|54G0935 |486SLC2 C       |     |     |     |     |            |
|        |  Processor     |     |     |     |     |            |
|        |  Upgrade       |  N  |  Y  |  N  |  N  |700C only   |
|54G1032 |486SLC2 M       |     |     |     |     |            |
|        |  Processor     |     |     |     |     |            |
|        |  Upgrade       |  Y  |  N  |  N  |  N  |700 only    |
|07G1530 |Carrying Case   |  Y  |  Y  |  Y  |  Y  |Briefcase Size 
|92F8808 |Carrying Case   |  Y  |  Y  |  Y  |  Y  |Compact Size|
|07G0032 |Keypad          |  Y  |  Y  |  Y  |  Y  |            |
|07G0033 |Miniature Mouse |  Y  |  Y  |  Y  |  Y  |            |
|79F6800 |RS-232          |  Y  |  Y  |  N  |  N  |Unique Form Factor 
|94X2555 |2400 Baud Modem |  Y  |  Y  |  N  |  N  |Unique Form Factor 
|42G2580 |14.4 Baud Modem |  Y  |  Y  |  N  |  N  |Unique Form Factor 
|07G1419 |2MB IC DRAM     |  Y  |  Y  |  Y  |  Y  | 
|07G1420 |4MB IC DRAM     |  Y  |  Y  |  Y  |  Y  | 
|07G1421 |8MB IC DRAM     |  Y  |  Y  |  Y  |  Y  | 
'--------+----------------+-----+-----+-----+-----+-------------
.--------------------------------------------------------------.
|240MB INTERCHANGEABILITY                                      |
|---------------------+--------+----------+---------+----------|
|                     |  80MB  |  120MB   |  160MB  |  240MB   |
|System Unit + Option |   HDD  |   HDD    |   HDD   |   HDD    |
|720C + 240MB HDD     |  SYS   |    SYS   |   SYS   |    OK    |
|720  + 240MB HDD     |  SYS   |    SYS   |   SYS   |    OK    |
|720C                 |   OK   |     OK   |    OK   |   UPG    |
|720                  |   OK   |     OK   |    OK   |   UPG    |
|700C + 240MB HDD     |  SYS   |    SYS   |   SYS   |    OK    |
|700 + 240MB HDD      |  SYS   |    SYS   |   SYS   |    OK    |
|700C + DC + 240MB HDD|  SYS   |    SYS   |   SYS   |    OK    |
|700 + DC + 240MB HDD |  SYS   |    SYS   |   SYS   |    OK    |
|700C                 |   OK   |     OK   |    OK   |   UPG    |
|700                  |   OK   |     OK   |    OK   |   UPG    |
|700C + DC            |   OK   |     OK   |    OK   |   UPG    |
|700 + DC             |   OK   |     OK   |    OK   |   UPG    |
|---------------------+--------+----------+---------+----------|
|DC  -- Double clock upgrade installed
SYS -- System partition must be updated with reference diskette
|UPG -- Upgrade kit installation is required 

IBM THINKPAD PORT REPLICATOR
   The ThinkPad Port Replicator can be attached to all ThinkPad 700/720/C systems.  The Port Replicator is designed to provide a convenient way to detach/re-attach all attached peripherals, for example, a printer, when the "portable" computer is taken from one location to the other. Installation of the port replicator is simply snapping onto the system expansion connector.  No additional features are required for use.  The Port Replicator extends the bus signals of the system expansion connector to a keyboard/numeric keypad, a mouse, an external display, a parallel and serial (9-pin) connectors. The system AC adapter can be put in the plug guide.  Thus, the peripherals stay plugged into the Port Replicator that remains on the desk.  Removal procedure is simply done by using opening levers.  A wire or chain can be used to secure the port replicator on the desk.

KEYBOARD KEYGUARD: 
   This is a molded plastic keyboard overlay that has holes for each key and an integrated TrackPoint II and click buttons.  It allows a user with mobility problems/muscle control problems to steady a hand on the KeyGuard and press the key by reaching through the related hole.