What are the four key functions of a computer system?
input, processing, output, and storage
keyboard, display, memory, and disk drive
word processing, spreadsheets, database, and contact management
read, write, calculate, and display
Which IRQ does COM1 commonly use?
3
4
6
7
How can you tell that a particular ribbon cable should only be used to connect a floppy drive?
it has a twist in it
it has a red line along one edge
it's wider than all the other ribbon cables
it's white
What type of connector is used to plug a telephone line into a modem?
RJ-45
RJ-10
COM1
RJ-11
Which IRQ does the system timer commonly use?
0
1
10
None. It doesn't use an IRQ
What does FDISK do?
recovers lost clusters on the hard drive
performs low-level formatting of the hard drive
creates partitions on the hard drive
fixes bad sectors on the hard drive
Parity is:
a system for balancing the voltage coming out of the power supply
a byte stored in the FAT to indicated remaining slots
the last setting for controlling hard drive configuration of IDE drives in the CMOS
an extra bit stored with data in RAM that is used to check for errors when the data is read back
What type of video ram technology is used on video cards that are used in laptop computers?
DDR SDRAM
RAMBUS
SIMM
DIMM
Whats is the commonly fournd hard drive size of laptop computers?
1.8 inch (4.5cm)
2.5 inch (6.25cm)
3.5 inch (8,.75cm)
5.25 inch5 (13.12cm)
What should be done to obtain the maximum battery life in a PDA?
adjust the touch screen sensitivity
adjust the screen backlight settings
adjust the IrDA transfer rate
Adjust the SD card bus speed