CS401 Final term Subjective 2012

CS401 - Computer Architecture and Assembly Language Fina lterm Subjective Paper July 2012

40 Mcqs
5 Marks Questions
1 - Define Coordination between data bus, control bus and address bus?
2 - Values required for the following registers to write a character on serial port using INT 21?
- AH =
- AL =
- DX =
3 - Data movement and arithmetic operation in Motorola 68k processor?
4 - Set the time interrupt frequency at 1ms ?

3 Marks Questions1 - Information through descriptor's first 16 Bits used to represent what?
2 - can we increase the speed of multitasking. if yes then how?
3 - Purpose of Global Descriptor Table (GDT) ?
4 - How many bytes will be moved?
- Mov cx, 384
REP movsb
- Mov cs, 384
REP movsw

2 Marks Questions1 - what is the function naming convention in language C ?
2 - write instruction to allocate space for 32Bit PCB?
3 - what are the roles of segment-selector and segment-descriptor?
4 - Segment and Offset address in case of FAR Jump?