Define a serial port and explain its basic operating principle.
Ch 11: Real-Time Interrupts & Timer Programming
Technical study of timer channels, programming PIT control word registers (port 0x43), divisor calculations (1193180 / frequency), hooking timer tick interrupt 08h, and rendering on-screen digital clocks.
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CS401 - Computer Architecture and Assembly Language Programming Examination Practice
Timed practice exam simulation for CS401 - Computer Architecture and Assembly Language Programming.
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What is the minimum number of pins required for serial communication, and what are their names?
In a standard DB-9 serial port connector, the Data Set Ready (DSR) signal is assigned to which pin number?
In a standard DB-9 serial port connector, Data Set Ready (DSR) is assigned to which pin number?
In a standard DB-9 serial port connector, Clear To Send (CTS) is assigned to which pin number?
In a standard DB-9 serial port connector, Carrier Detect (CD) is assigned to which pin number?
How many physical pins are present in a standard parallel port DB-25 connector?
Which range of pin numbers in a standard DB-25 parallel port connector are tied to electrical ground (GND)?
What is the standard designation for a 9-pin serial port connector?
The following assembly instructions are extracted from a Multitasking TSR thread routine that displays a rotating bar animation on the video screen. Comment on what each instruction does:
mov al, [chars+bx]
mov [es:40], al
inc bx