Computer Science - Computer Hardwarre
Computer Science - Computer Hardwarre
11. What product is used to clean smudged keys on a keyboard?
- TMC solvent
- Silicone spray
- Denatured alcohol
- All-purpose cleaner
12. ESD would cause the most damage to which component?
- Power supply
- Expansion board
- Monitor
- Keyboard
13. To view any currently running Terminate Stay Resident (TSR's) programs you could type:
- Memory
- MEM
- SYS /M
- Memmaker
14. Which type of system board is the MOST likely candidate for processor upgrading if you want maximum performance and future compatibility?
- ML
- PCI
- ISA
- EISA
15. Suppose that you have a the maintenance package identifies several possible field replaceable units (FRUs) that will resolve the problem. What should you do after turning the power off?
- Replace the indicated parts, one at a time in the recommended sequence, until the problem is resolved; return unused FRUs to stock
- Replace all of the indicated FRUs at once and return the machine to the customer if the problem is resolved
- Follow the same procedure as in ays replace the system board first if it is on the list of possible FRUs If multiple FRUs are indicated, then software is the most likely source of the problem
- None of the above
16. Most PCs give a single beep on bootup to indicate they are ok hardware wise. You boot your PC and don't get a beep. What should you check first?
- system board
- RAM
- microprocessor
- power supply
17. Which peripheral port provides the FASTEST throughput to laser printers?
- RS-232
- SCSI
- Parallel
- Serial
18. The mouse pointer moves erratically, what is the possible cause? The mouse
- ball is dirty
- is not connected
- driver is not installed properly
- has an incorrect IRQ setting
19. Voltage4s measured:
- in parallel
- in series
- after breaking the circuit
- after checking resistance
20. Your customer tells you the print quality of their dot matrix printer is light then dark. Which of the following could cause the problem.
- Paper slippage
- Improper ribbon advancement
- Paper thickness
- Head position