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CIT309 TMA1

1 …..……. ,…………. and…………….. conditions will warrant the CPU not to honor the interrupt request except ………….. *Interrupt disable *Instruction completion *Execution state *Hold state 2 ………………... arbitrates system communication and has a central role in maintaining cache coherence *L2 cache *Memory card *System control element (SCE) *Main store control (MSC) 3 …………... unit controls the operation of the processor *logical *control *arithmetic *operation 4 The operation of the processor is determined by the following excep ______________ *machine instructions *instructions it executes *instruction *computer instruction 5 ……………… operations are the functional or atomic operations of a processor *Macro *Micro *Micra *Cycle 6 The most interesting and complex component in a computer system is ____________ *Main memory *Central processing unit *Input/Output *System interconnections 7 The following except _________ are part of the mai...

CIT309 TMA2

1 in both the SMP and uniprocesssor cases, multiple jobs or processes may be active at one time________ responsiblefor the allocation of the resources *processor *ALU *Control bus *operating system 2 ………………… is midway between software and hardware *Programming *Macroprogram *Program *Microprogram 3 In what order does the next instruction fetch during the instruction cycle *random *glance *subsequence *sequence 4 An instance of a progam running on a computer is called ___________ *reaction *function *execution *process 5 …………….. Acknowledges that the CPU has been reset *Reset Out *Reset In *Reset *Set 6 ……………… causes the contenst of the CPU to be set to zero *Reset Out *Reset In *Reset *Set 7 Which of the following is not an elements of a machine instruction? *Results operands reference *Source operand reference *Operator *Next instruction reference 8 the enhancement of a system performance by adding an additional processor by a...

CIT309 TMA4

1 An execution may consist of the following except ________ *fetch *direct *interrupt cycles *execute cycle 2 Which of the following is not a subdivision of Instruction set *Fetch *Indirect *Interrupt *Extraction 3 …………..causes an instruction to be fetched from memory *Fetch instruction *Fetch cycle *Instruction cycle *Execution cycle 4 ……………….. help a user to enhance the performance of a system by adding an additional processor *growth *Scaling *Availability *Incremental growth 5 A sequence of instructions is known as a …………………. *humanware *firmware *hardware *peopleware 6 the characteristics of a process is/are: (i)execution/ Scheduling (ii)Resource ownership *i *ii *i and ii *none of the above 7 Logic that can add 1 to or subtract 1 from the contents of the stack pointer or program counter is/are: (i)Incrementer address latch (ii)decrementer address latch *i *ii *i and ii *none of the above 8 The control unit performs the basic tasks: ...

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