MITS offered a complete Altair system with two MITS 4K Dynamic RAM boards, a serial interface board and Altair BASIC for $ 995.
42.
MMC originally used a 1-bit serial interface, but newer versions of the specification allow transfers of 4 or 8 bits at a time.
43.
The CPU microcode includes a debugger : firmware with a direct serial interface ( RS-232 or current loop ) to a boot from.
44.
Due to the serial interface's limitations, program loading and saving is no faster than on a 1541 drive when that interface is used.
45.
The main function of the controller board was now to carry the support circuits for this serial interface, or USB on later boards.
46.
The standard only defines signal levels; other properties of a serial interface, such as electrical connectors and pin wiring, are set by other standards.
47.
The VT200s were the last DEC terminals to provide a 20mA current loop serial interface, an older standard originally developed for the telegraph system.
48.
It is possible to find SPI adapters on the market today that support up to 100 MHz serial interfaces, with virtually unlimited access length.
49.
FOSSIL drivers are specific to the hardware they operate on because each is written to fit specifically to the serial interface hardware of that platform.
50.
Initially, Commodore intended to use a hardware shift register ( one component of the 6522 ) to maintain fast drive speeds with the new serial interface.
