Corvette PK-8010, or Back to Childhood

    Hello, habracheloveki. The other day I delved into my closet in search of a dremel, and suddenly I found it . It was half-dismantled, the case was partially broken, and the nameplate on the case said that this car was from my school ...

    I apologize in advance for the quality of the photos - it's a good digital camera on vacation, so I had to shoot it with an old Olympus soap dish.

    So, before us is the great and terrible "Corvette PK-8010" of the 89th year of release. His heart is KP580VM80A, a complete hardware clone of the equally great and terrible i8080A (I note, not the i8080 itself - because only K580IK80, which was produced in a planar case, can be considered its full clone).


    “Corvette” was developed in the second half of the 80s (the beginning of development - the end of 1985) by the staff of the Institute of Nuclear Physics at Moscow State University: Sergey Akhmanov, Nikolai Roy and Alexander Skurikhin, and was originally intended to automate the control of a facility for remote measurement of low-temperature plasma parameters by methods laser spectroscopy, as well as for processing received information and theoretical calculations, maintaining a data archive, and the like. Subsequently, however, it was decided to equip all general educational institutions in the country with this machine for teaching the basics of computer literacy - and the machine went into circulation in the 88th year.

    Unfortunately, Corvette itself was very late - almost a decade and a half, and those in power of that time did not understand at all which money to spend quite tangible money on, a computer which requires such complexities as, for example, production PCB abroad (this is indirectly indicated by the nameplate with the production date of the board in English - for example, on my copy), or the purchase there of an expensive element base, the production of which was mastered in Sovka only by the 88th year (before that, to For example, the entire ROM in Corvette b It is Hungarian or Polish production).

    Two variations of the Corvettes left for schools - PC 8010 and PC 8020. They did not differ much in appearance, minus the fact that 8010 was a "workstation" for students - it carried ROMs with a BASIC interpreter, and, in most cases, a compiler Lisp, and on teaching machines the assortment of software was already larger. The machines could connect up to 16 in a network via a serial port, and I don’t even want to imagine what it looked like.

    I got into the hands of a car that used to be on the balance sheet at my school - I have no idea how I got it, because I reliably remember that I didn’t carry anything like this home. Perhaps you need to thank my brother, who was in the same school. The specific copy of the Corvette that I am demonstrating here is in a rather poor state (the case is broken, and from it there is only a keyboard block, that is, the upper part; there are several keys on the keyboard (space, one functional), and one is damaged; the motherboard is soldered-soldered, on the back side there are a lot of jumpers with which someone for some hell replaced a bunch of missing valves; maybe one of the ROM chips is damaged), however, I hope that even with this condition of the case I I will be able to get it. But more about that later,

    BIS KR580VV51
    LSI serial interface KR580VV51; the picture shows the weed on the PCB with its release date: June 6, 1988, i.e. the board wandered for almost a year before assembling the finished machine.

    KR580VB55A, programmable peripheral interface
    KR580VB55A, a complete clone of Intel 8255A, a programmable interface for the periphery of

    RAM blocks

    M2764AFI ROM Blocks
    M2764AFI, blocks of ROM memory. Cleaning - by UV processing.

    Parallel port and KP580VV55A already mentioned, serving it.

    Connectors on the rear panel - video outputs and serial port for connecting to a local network

    General view of the

    keypad Number key block

    Unfortunately, that's all for now. I smoke mana, collect BP for this miracle, and gradually restore the PCB. As soon as I start it, or if I burn it completely, I will definitely report this fault or file to the habrasociety. I would be very grateful if someone from my native Tver would help with the search for the original body in a sane state and the missing buttons on the keyboard. Domo Arigato and stay tuned.

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