Student Mod 3

IT Essential – Module 3 1) Some fans can change direction to allow air to be blown directly on the ________ and to regulate the quality of the air entering the case. 2) Match each component with the voltage from the power supply unit that it uses. 1. ___ Motherboard 2. ___ Disk Drives 3. ___ Serial Port Circuits 4. ___ ISA bus cards 5. ___ Most newer CPUs 6. ___ Ground

a. –5V b. +3.3V c. 0V d. +12V e. +5V f. –12V

3) Never attempt to repair a defective power supply. ____________ inside a power supply box store electricity and will discharge through the body if touched. 4) The ATX motherboard directs air _______________________ of the computer case. 5) How many different levels of DC voltage do ATX & AT power supply produces respectively? 6) Circle all that are correct: a) BIOS contains the software required to test hardware at boot up. b) BIOS contains the software required to execute windows applications and access user files. c) BIOS contains the software required to support the transfer of data between hardware components. d) BIOS contains the software required to support hard drive and floppy drive data storage. e) BIOS contains the software required to start up the operating system. 7) Any problems during the POST are indicated by the BIOS displaying 8) BIOS is saved in the chip on the motherboard (even when the power is turned off) by a ________________. 9) BIOS initially runs basic device test programs and then seeks to _______________ these devices. 10) Without the correct code and_____________ _______________, the system will either not boot properly or work inconsistently with frequent errors.