This section contains more frequently asked Microprocessors 8085 Basics Multiple Choice Questions and Answers in the various University Level and Competitive Examinations.
PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE
1. The VESA local bus operates at
- 8 MHz
- 33 MHz
- 16 MHz
- None of these
B. 33 MHz
2. The first modern computer was called_____________
- FLOW-MATIC
- UNIVAC-I
- ENIAC
- INTEL
C. ENIAC
3. Software command CLEAR MASK REGISTER in DMA
- Disables all channels.
- Enables all channels.
- None
- Clears first/last flip-flop within 8237.
B. Enables all channels.
4. The first task of DOS operating system after loading into the memory is to use the file called___________
- HIMEM.SYS
- CONFIG.SYS
- AUTOEXEC.BAT
- SYSTEM.INI
B. CONFIG.SYS
5. If the programmable counter timer 8254 is set in mode 1 and is to be used to count six events, the output will remain at logic 0 for _____ number of counts
- 5
- 6
- All of the above
B. 6
6. The flash memory is programmed in the system by 12 V programming pulse
- TRUE
- FALSE
A. TRUE
7. A plug and play (PnP) interface is one that contains a memory that holds configuration information of the system
- 1
A. 1
8. The accelerated graphics port (AGP) allows virtually any microprocessor to be interfaced with PCI bus via the use of bridge interface
- 1
A. 1
9. A Bus cycle is equal to how many clocking periods
- Two
- Three
- Four
- Six
C. Four
10. The time required to refresh a typical DRAM is
- 2 – 4 us
- 2 – 4 ns
- 2 – 4 ms
- 2 – 4 ps
C. 2 – 4 ms
