Digital Computer Electronics
The clock signals are used in sequential logic circuits

None of these
to tell how much time has elapsed since the system was turned on
to carry serial data signals
to tell the time of the day
to synchronize events in various parts of a system

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Digital Computer Electronics
The ASCII

None of these
is a subset of 8-bit EBCDIC
is version II of the ASC Standard
is used only in Western Countries
has 128 characters, including 32 control characters

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