VINTAGE- IBM 5140 PC CONVERTIBLE COMPUTER PORTABLE LAPTOP PC W/ PRINTER & CASE For Sale

VINTAGE-  IBM 5140 PC CONVERTIBLE COMPUTER PORTABLE LAPTOP PC W/ PRINTER & CASE


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VINTAGE- IBM 5140 PC CONVERTIBLE COMPUTER PORTABLE LAPTOP PC W/ PRINTER & CASE:
$91

ULTRA RARE VINTAGE- IBM PC CONVERTIBLE 5140 COMPUTER PORTABLE LAPTOP PC W/ PRINTER & CASE
GREAT TO EXCELLENT CONDITION , KEYBOARD , SCREEN CASE IT ALL !
I JUST DON'T HAVE AN ADAPTER THAT GOES WITH THIS TO TEST . I DON'T KNOW IF IT HAS A BATTERY OR NOT . PLEASE SEE PICTURES AS THEY ARE PART OF THE DESCRIPTION . SOLD AS IS . ITS NOT VERY OFTEN THAT YOU FIND THIS AND ITS MY ONLY ONE THE CARRYING CASE IS CANVAS WITH IBM ON IT WITH MAY POCKETS , ZIP / SNAP AND VELCRO
THE PRINTER IS ATTACHED - NOT SURE HOW TO REMOVE IT .
FROM WIKIPEDIA FOR INFO ONLY AND NOT IMPLIED TO BE LIKE LISTING ABOVEIBM PC ConvertibleRelease dateApril3, 1986; 32 years ago(1986-04-03)Introductory priceUS$2,000 (equivalent to $4,571 in 2018)Operating systemIBM PCDOS with custom icon-oriented shell interfaceCPUIntel 8088 CPU @ 4.77 MHzMemory256 kB of RAM (expandable to 640 kB)StorageDual 720 kB 3.5" floppy drivesDisplayMonochrome CGA-compatible LCD screen.Graphics80x25 (text), 640x200, and 320x200PowerBattery: 9.6v/2400mAh (NiCd)
Power supply: 15 VDC, 2.7A.Mass13 pounds (5.8 kg)PredecessorIBM Portable Personal ComputerSuccessorIBM L40 SX (based on the IBM Personal System/2)
IBM PS/Note

The IBM PC Convertible is the first laptop computer released by IBM. Released on April 3, 1986, the Convertible was also the first IBM computer to use the 3½-inch floppy disk format which went on to become the industry standard. Like modern laptops, it featured power management and the ability to run from batteries.

It was the follow-up to the IBM Portable and was model number 5140. It was replaced in 1991 by the IBM PS/2 L40 SX, and in Japan by the IBM Personal System/55note, which was the predecessor to the ThinkPad

Description

The PC Convertible used the CMOS version of the Intel 8088 CPU running at 4.77MHz, 256 kB of RAM (expandable to 640 kB), dual 720 kB 3.5" floppy drives, and a monochrome CGA-compatible LCD screen at a price of $2,000. It weighed 13 pounds (5.8kg) and featured a built-in carrying handle.

The PC Convertible had expansion capabilities through a proprietary ISA bus-based port on the rear of the machine. Extension modules, including a small printer and a video output module, could be snapped into place. The machine could also take an internal modem, but there was no room for an internal hard disk. The concept and the design of the body was made by German industrial designer Richard Sapper.

Pressing the power button on the computer did not turn it off, but put the machine into "suspend" mode, which would hold in place as long as there was battery power. This avoided the long boot-up process. The CMOS 80c88 CPU has a static core, which held its state indefinitely by stopping the system clock oscillator. It can resume processing when the clock signal is restarted, as long as it is kept powered. The CMOS 80C88 processor used very little power while the clock signal is stopped. The system RAM in the Convertible is SRAM rather than DRAM, both for lower power consumption and less circuitry to fit into the cramped laptop case. The Convertible had 256k of RAM included, with 128k (and eventually also 256k) memory cards available. There was space for 4 memory cards in the system, so at least one of those has to be a 256k card in order to be able to upgrade the system to full 640k base memory.

The screen was only half the size of the lid, so text characters and graphics were compressed vertically, appearing half their normal height. The display was capable of 80x25 text and graphics modes of 640x200 and 320x200 pixels. Pressing a lever between the two floppy drives just below the display detached the entire screen from the unit. This feature allowed the convenient use of a full-size desktop monitor while at one's desk, an early forerunner of the "docking station" concept, as well as Apple's PowerBook Duo.

Thanks for looking !PLEASE NOTE ; I CANNOT CHANGE offerS , SO MAKE SURE YOU WANT THE ITEM BEFORE offerDING -When offerding on a item, you are entering into a contract to purchase the item. THOSE WHO WIN THE sale AND CHANGE THEIR MIND WILL HAVE TO BE BLOCKED FROM FUTURE offerDING -I ONLY SAY THIS BECAUSE ITS CONSTANTLY HAPPENING AND I HAVE TO RELIST AND WAIT AGAIN FOR THE sales TO END .MY ITEMS ARE CONSIGNED AND THE OWNER IS LOOSING OUT AS WELL AS MYSELF . Thank you to the buyers whom do the right thing !
**I try to take several clear photos and describe my items to the best of my ability. Please carefully look over photos and ask questions if needed. I check the items over as thoroughly as I can and do my absolute best to describe any imperfections found. Occasionally, it is easy to miss something minor or very small. I ship by USPS- UP TO 4 business days - NO INTERNATIONAL SHIPPING . I don't charge for boxes and packing material ,USPS MAKES THE RATES ON THE WEIGHT OF THE ITEM
I have a 30 day return policy ,-I accept returns only if I have overlooked something.- Please ask questions and look over pictures well before purchasing . NY RESIDENTS HAVE A STATE TAX , I'M SORRY ,ITS NOT MY CHOICE.
sales that are Sold " For parts or not working " or anything item or items that have been opened up and/or repaired by you or some else and any kind of opened software CANNOT BE RETURNEDI will pack the item so it gets to you as safely as possibleThanks for shopping and please visit our store as we are adding items daily. Have an awesome day!




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