Matches in DBpedia 2016-04 for { ?s ?p "Z-2 is the name of a series of microcomputers made by Cromemco, Inc. which were introduced to the market in the middle to late 1970s.They were originally available in assembled or kit form to serve both a commercial market and the computer enthusiast market. Later the machines were only available factory-assembled. These Cromemco machines were widely respected for their speed, configurability, durability, and reliability.The Cromemco Z-2 computer was a Z80–based microcomputer system that was introduced in 1977. The original Z-2 in kit form included a ZPU-K Z80 CPU card, S-100 bus motherboard, all-metal rack-mount chassis and dust case, card socket and card guide; the assembled form included a complete set of sockets and card guides, and a cooling fan. The Z-2 series was capable of supporting up to 21 S-100 boards and could be configured with any of the boards supplied by Cromemco.The Z-2 gave an impression of solidity due to its hefty 450-watt power supply and heavy metal chassis. A TU-ART (dual serial and parallel board), 4FDC Floppy Disk Controller, one or more 16KZRAM cards, and a Wangco 5¼\" floppy disk drive would be added to form a basic system.An unusual feature of the Z-2 was switch–selectable CPU speed; 250 or 500 nanosecond cycle time were available. The ZPU speed was 4 MHz at a time when less than 2 MHz was normal, and boards from other manufacturers might still require the slower speed. The ZPU card in the Z-2 could address up to 64 kilobytes of RAM. However, the 16KZ memory card supported bank-switching with 8 banks of 64 kilobytes each. When using the 16KZ, the maximum RAM of the Z-2 was limited by the available S-100 slots. If 16 of the slots were occupied by 16KZ cards, then the system had 4 banks of 64 kilobytes each, for a total of 256 kilobytes.Additional S-100 slots were required for cards controlling peripherals, disk drives, and I/O interfaces. Communication with the processor was normally performed through a TU-ART or other S-100 bus compatible interface card, which could run a CRT terminal or teletype."@en }
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- Cromemco_Z-2 abstract "Z-2 is the name of a series of microcomputers made by Cromemco, Inc. which were introduced to the market in the middle to late 1970s.They were originally available in assembled or kit form to serve both a commercial market and the computer enthusiast market. Later the machines were only available factory-assembled. These Cromemco machines were widely respected for their speed, configurability, durability, and reliability.The Cromemco Z-2 computer was a Z80–based microcomputer system that was introduced in 1977. The original Z-2 in kit form included a ZPU-K Z80 CPU card, S-100 bus motherboard, all-metal rack-mount chassis and dust case, card socket and card guide; the assembled form included a complete set of sockets and card guides, and a cooling fan. The Z-2 series was capable of supporting up to 21 S-100 boards and could be configured with any of the boards supplied by Cromemco.The Z-2 gave an impression of solidity due to its hefty 450-watt power supply and heavy metal chassis. A TU-ART (dual serial and parallel board), 4FDC Floppy Disk Controller, one or more 16KZRAM cards, and a Wangco 5¼\" floppy disk drive would be added to form a basic system.An unusual feature of the Z-2 was switch–selectable CPU speed; 250 or 500 nanosecond cycle time were available. The ZPU speed was 4 MHz at a time when less than 2 MHz was normal, and boards from other manufacturers might still require the slower speed. The ZPU card in the Z-2 could address up to 64 kilobytes of RAM. However, the 16KZ memory card supported bank-switching with 8 banks of 64 kilobytes each. When using the 16KZ, the maximum RAM of the Z-2 was limited by the available S-100 slots. If 16 of the slots were occupied by 16KZ cards, then the system had 4 banks of 64 kilobytes each, for a total of 256 kilobytes.Additional S-100 slots were required for cards controlling peripherals, disk drives, and I/O interfaces. Communication with the processor was normally performed through a TU-ART or other S-100 bus compatible interface card, which could run a CRT terminal or teletype.".