Altair 8080 Memory Slot - MIRRORLOTO.NETLIFY.APP

MITS Altair 680.
They Were Buying a Promise - Fire in the Valley, 3rd Edition.
Altair BASIC via 8080 emulation • JeeLabs.
» Altair BASIC via 8080 emulation » JeeLabs.
History of the Microprocessor and the Personal Computer, Part 2.
Intel 8080 altair clone test suite EmuDev - reddit.
IMSAI 8080 - Wikipedia.
Micro Instrumentation and Telemetry Systems.
PTCO Sol-20 - retroborkenwerk - Google.
A beautiful ESP32 software emulation of the Altair 8080 with VGA and PS.
IMSAI 8080 - Old Computer Museum.
PDF Toronto Canada - S100 Computers.
MITS Altair 8800B Turnkey FULLY TESTED WORKING IMSAI 8080 S.
WLA DX - Yet Another GB-Z80/Z80/6502/65C02/65CE02/65816... - Ville Helin.

MITS Altair 680.

Roberts was able to secure supply of the 8080 for $75 a processor (Intel's list price was $360, as was Motorola's 6800) and constructed the Altair 8800 to use sourced component boards plugged into. 4 Memory slots - up to 1K SRAM each slot for a total of 4K. It took 32 256 bit 1101 memory chips to make up 1K bytes of memory that each board supported.... Except for pricing issues, and later on, performance, as the Altair's 8080 vastly outperformed the 8008, it's hard to find any bad comments about SCELBI in those newsletters. Here are some.

They Were Buying a Promise - Fire in the Valley, 3rd Edition.

At the time we began work on the Altair, core memory was still... a supply of 100-slot connectors at a really good price.... kit—which included the Intel 8080 processor and 256 bytes of memory.

Altair BASIC via 8080 emulation • JeeLabs.

Altair C700 printer users guide (see altair8800b-t_PROM in back you can see card) Altair 8800b turnkey computer documentation (up to pg. 56, no users guide) Altair 8800b turnkey prom monitor user's guide Altair 88-16K Static Ram card (88-16 MCS) (see altair8800b-t_PROM there are two RAM cards) Reply Altair 8800b turnkey update. No I do not have original MITS power supplies for sale or otherwise. ALTAIR 8800 original power supply specifications (at the end): ( From Dan Roganti [CORRECTED] ) T1 transformer. Output = 8VAC, 8A. This is used to power the TTL logic on the cards in the backplane (+5V). It was very underpowered. when many of the slots were populated with cards. Altair-Duino. Dimensions: 15″ x 6″ x 2″. Weight: 2.5 lbs. RAM: 512KB (64KB maximum for Altair emulation, the rest used as storage for Altair programs and utilities.) Storage: Micro SD card with megabytes of classic software included (CPM, Altair DOS, BASIC).

» Altair BASIC via 8080 emulation » JeeLabs.

MITS Altair 8800 See below for specifications and informationon this system. Specifications and information The MITS Altair 8800 is widely known as the first real personal computer. Additional Altair 8800 Photos Here are some more detailed photos of the Altair 8800. thumbnail to see a larger version of the picture!.

History of the Microprocessor and the Personal Computer, Part 2.

It will even accept the same cards as the Altair, because of the S-100 bus design. The IMSAI was not the only computer to copy MITS' S-100 bus scheme, but it was the first. In an effort to expand into the serious business market, the IMSAI VDP-80 (Video Data Processor) was released in 1977. It is a large and heavy all-in-one computer system. The IMSAI 8080 was an early microcomputer released in late 1975, based on the Intel 8080 and later 8085 and S-100 bus. It was a clone of its main competitor, the earlier MITS Altair 8800. The IMSAI is largely regarded as the first "clone" computer. The IMSAI machine ran a highly modified version of the CP/M operating system called IMDOS. The micro processor was of course an Intel 8080 running at 2 MHz, maximum 64 k memory could be used. The case includes a big power supply and a "motherboard" with S-100 slots. And of course the nice front panel with the big red and blue toggle switches that gives IMSAI the typical -70 look.

Intel 8080 altair clone test suite EmuDev - reddit.

The basic unit came with a front panel, a 8080A CPU card, a six slot motherboard with two connectors. No RAM. No place to plug in a RAM board either. During 1976-1977, I built 22 of these IMSAI kits. I purchased this computer as a kit in 1977. I went for the optional 22 slot motherboard and 22 sockets. The inside of the IMSAI. This unit is.

IMSAI 8080 - Wikipedia.

PROM programs were usually assembled to run from very high in the 8080's address range so this wouldn't be a problem unless you had spent the money on lots of RAM for your Altair.... The Altair Clone does have a virtual PROM card with several PROM slots. However, since it's not actually a set of PROM chips, I can't burn a program to a chip to. David Hansel has also made some awesome updates to the software that will enable you to upload and save software to the SD card, emulate a 5MB hard drive, support multiple serial ports, emulate an Intel 8080 or Zilog Z80 CPU and more! Shipping Weight. 74 oz. Shipping Dimensions. 15 × 8 × 9 in. Computer MITS Altair 8800 was named after a planet in one of the first episodes of Star Trek series. Having Intel 8080 CPU inside, with 256 bytes of memory, no display and keyboard is this computer, when comparing to the present era, absolutely ridiculous.... at first 16 slots, later 18 slots: Bus: famous S-100: Video: none: I/O.

Micro Instrumentation and Telemetry Systems.

This Rev 0 CPU card has the rare Intel 8080 chip. Most Altairs were powered by the Intel 8080A.... One of the 4 Seals 8k static RAM cards. The Altair 8800 came with 32k of RAM on 4 Seals. 22 boards, and the universal memory and I/O interface boards will plug into any slot. With provision for 10 cable connectors, it's simple to phg numerous peripherals d~rectly into the IMSAI 8080. For large programs, you can have up to 64K bytes of 500-nanosecond memory with a powerful write-protect feature and LED status indicators. In January of 1975. MITS stunned the computer world with the announcement of the Altair 8800 Computer that sells for $439 in kit form. Today MITS is announcing the Altair 680. The Altair 680. built around the revolutionary new 6800 microprocessor chip, is the lowest priced complete computer on the market. Until December 31, 1975, this computer.

PTCO Sol-20 - retroborkenwerk - Google.

A beautiful ESP32 software emulation of the Altair 8080 with VGA and PS/2 support. 218 views.... FYI: I have a TTGO board running runcpm and it stores the CPM software on a sd card (sd card slot was on the TTGO board). Richard Deane. unread, Jul 30, 2019, 10:36:35 AM 7/30/19. The Altair kit, considered by many to be the first personal computer, included an 8080 processor, a power supply, a front panel with a large number of lights, and 256 bytes (not kilobytes) of memory. Like the old Altair S-100 bus, cards can be interchanged between them, and new cards can be designed that will work with both. 8080 CPU + Front Panel card. The 8080 itself is at the top, front and center for all to see. Left of it is the 8224 clock, reset, and ready generator. To the right of the 8080 is the switchmode power supply, using the.

A beautiful ESP32 software emulation of the Altair 8080 with VGA and PS.

Daves Old Computers - Various S-100. The 100 pin bus defined by the Altair soon became an industry standard, and was adopted by many of the early 8080 and Z80 systems. Click any photo to view a large high-resolution image. The announcement of the Mits Altair 8800 in Jan 1975 Popular Electronics kicked off the personal computer revolution.

IMSAI 8080 - Old Computer Museum.

The heart (and the secret) of the M ITS Altair 8800 is the Intel 8080 processor chip. Thanks to rapid advances in integrated circuit technology, this one IC chip can now do... can be plugged into any slot and the correct address, etc., for that card will be picked... System Two consists of the basic Altair 8800 plus enough memory to do simple. The IMSAI 8080 was an early microcomputer released in late 1975, based on the Intel 8080 and later 8085 and S-100 bus. It was a clone of its main competitor, the earlier MITS Altair 8800.The IMSAI is largely regarded as the first "clone" microcomputer. The IMSAI machine ran a highly modified version of the CP/M operating system called IMDOS.It was developed, manufactured and sold by IMS. Unfortunately, when the 8080 enters a HLT on the Altair, the address bus gets tri-stated and you can't read the memory address you stopped at.... just how it worked, because s/he had installed a 7404 inverter chip in an (thoughtfully provided by PT) empty IC slot and had run the TBE (Transmit Buffer Empty) and RDA (Receive Data Available.

PDF Toronto Canada - S100 Computers.

You can still find Altairs in museums, and some lucky individuals still have their machines. But they're rare. Here is a faithful simulation of a MITS Altair, complete with fan noise, switch clicks, volatile memory, and a functioning Intel 8080 processor. It works just like a real Altair, and runs at the correct 2Mhz clock speed. Additional 4 slot motherboard kits (with 4 card edge connectors) are available at a price of $90 each. The kit comes with a guarantee that you will end up with a fully functional Altair. As long as you make a good effort at assembling the kit, and pay shipping both ways, I will diagnose and repair your kit for free.

MITS Altair 8800B Turnkey FULLY TESTED WORKING IMSAI 8080 S.

The MITS680 is not S-100. While the MITS 680 uses the same 100-pin edge connector as the MITS Altair 8800; it's not S-100 compatible. The 680 bus boards' edge connector is in a different location than the MITS Altair 8800 boards and other S-100 boards. And, the MITS 680 bus signals are on entirely different pins. With proper adjustments, any memory speed can be used in the 8800 computer, although standard memory time is 850 ns for a static random access memory (RAM) and 420 ns for a dynamic RAM. Higher-speed memories will not appreciably affect the performance of the computer, while slower-speed memories will result in an overall reduction in system speed. Starting in 1977 IMSAI officially supported and sold "the Megabyte Micro", an IMSAI 8080 loaded with sixteen 64K DRAM boards. (This left two of the eighteen slots free for the CPU and I/O.) I have not seen such an expansion advertised specifically for the MITS Altair 8800 itself.

WLA DX - Yet Another GB-Z80/Z80/6502/65C02/65CE02/65816... - Ville Helin.

It doesnt have an SD card interface, and I cant see any connection pins to allow an external module. I assume it is just using the 4MB of internal flash (minus that needed for any rom code). Could be adequate for many uses. It would of course be fantastic if it could be upgraded to SD (or fake SD through usb or wifi connection if fast enough).