1. whenever a data is read from the memory
2. whenever a data is written into the memory
3. whenever the output variable is sent out of the CPU
4. whenever an interrupt or high priority call comes from external devices
whenever an interrupt or high priority call comes from external devices
1. the number of microprocessor
2. the name of the manufacturer
3. the internal status of the CPU
4. the bit-size of the micro-processor
the internal status of the CPU
1. mP and clock
2. mP, clock and ROMs
3. mP, clock, RAMs and ROMs
4. mP, clock, RAM, ROM, PIA and ACIA
mP, clock, RAM, ROM, PIA and ACIA
1. correct data
2. incorrect data
3. insufficient data
4. sufficient data
correct data
1. stores a number
2. adds two numbers
3. adds and stores previously stored number to another number
4. none of these
adds and stores previously stored number to another number
1. alphabetical
2. numerical
3. alpha-numerical
4. none of these
numerical
1. ALU, memory
2. ALU, control unit
3. ALU, memory, I/O device
4. ALU, control unit, memory
ALU, control unit
1. identification of a word
2. occurance of some condition
3. marking a tagging
4. all of these
all of these
1. to denote address
2. to employ hamming code
3. to denote error
4. to assist human memory
to assist human memory
1. Don’t know
2. Floating
3. Changing their states
4. All high
Floating