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Processor read/write scratch memory (called CALL STORE) was implemented using a magnetic core variant called Ferrite Sheet. Program and Data Store (used to store Software and infrequently changed data) was implemented using a technology called piggy back twistor - in modern parlance a write once, read many times non-volatile memory system).
The Bell DataPhone 300 used the same protocol as the Bell 103. This modem is from 1978. The Bell 103 modem or Bell 103 dataset was the second commercial modem for computers, released by AT&T Corporation in 1963. [1] [2] It allowed digital data to be transmitted over regular unconditioned telephone lines at a speed of 300 bits per second.
The Toronto Transit Commission (TTC) is the primary public transport agency in Toronto, Ontario, Canada, operating the majority of the city's bus and rail services. It is the oldest and largest of the urban transit service providers in the Greater Toronto Area, with numerous connections to systems serving its surrounding municipalities.
Front page of a floppy disk controller data sheet (1979) A datasheet, data sheet, or spec sheet is a document that summarizes the performance and other characteristics of a product, machine, component (e.g., an electronic component), material, subsystem (e.g., a power supply), or software in sufficient detail that allows a buyer to understand what the product is and a design engineer to ...
All types have a maximum collector current of 100 mA, except that the original Philips tentative data dated 4.4.1966 specified a maximum collector current of 100 mA peak (I CM) for the BC107/8/9, and Telefunken originally specified a maximum collector current of 50 mA for the BC109, but since at least 1973 all have revised collector currents of 100 mA average or 200 mA peak, except that the ...
IEC 103 uses FT1.2 (defined in IEC 60870-5-1) for frame format having options of Frame with variable length, Frame with fixed length & single character similar to IEC 101. Single character is used for acknowledgments, fixed length frames are used for commands & variable lengths are used for sending data.
In 2011, the provincial government passed the Toronto Transit Commission Labour Disputes Resolution Act (a.k.a. the TTC Act) to prohibit TTC strikes because the TTC was considered to be an essential service. However, in 2023, an Ontario Superior Court judge ruled that the act was unconstitutional as the government failed to show why the TTC is ...
The TTC continues to be the sole provider of public transit within the City of Toronto, as well as operating contracted services into the neighbouring York Region. Regional commuter service (both bus and rail) is operated by GO Transit , the vast majority of which goes to downtown Toronto's Union Station .