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36 Cards in this Set
- Front
- Back
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What is the starting point for everything else that runs on your computer. |
BIOS- Basic Input/Output System |
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What is BIOS an acronym for |
BASIC INPUT/OUTPUT System |
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What is the first thing the BIOS does? |
It initializes the system. It makes sure you have the hardware needed to continue loading the operating system |
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What is a POST |
Power On Self Test. This checks to see if there is any problem with hardware then prompts you for correction. |
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What does BIOS do after completing the POST |
Looks for boot loader to load the operating system. |
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Where is the BIOS located |
On the BIOS Chip |
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What are the two types of BIOS that may run? |
The legacy BIOS and the UEFI BIOS |
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How long has the legacy BIOS been around |
over 25 years. |
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Older operating systems accessed hardware indirectly through what? |
The legacy BIOS |
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What is UEFI and acronym for? |
Unified Extensible Firmware Interface |
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What is the defined standard of UEFI, that all hardware manufacturers use, based on? |
Intels' Extensible Firmware Interface |
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What are some advantages of a UEFI BIOS |
Can boot from larger storage systems, such as Guid Partition Tables (GPT) disks. Can boot from legacy FAT formats. Can boot from removable media. Provides a Pre-boot Environment. |
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Describe UEFI's pre-boot environment |
It can be used to troubleshoot before the OS is loaded. Can transfer files. Has it's own shell, drivers, and applications. Can browse the internet Can backup a storage drive Has remote diagnostics. |
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Where was BIOS settings stored in legacy BIOS systems. |
Complementary metal-oxide semiconductor (CMOS) |
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How are BIOS settings stored with the new UEFI BIOS |
Flash memory |
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What is advantage of new Flash memory for BIOS setting storage over the legacy CMOS? |
It does not require a constant power source to keep the BIOS configurations. The old CMOS require a battery to keep configurations when the computer was not powered. |
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In older CMOS BIOS storage system what was a way to reset the BIOS configuration? |
Removea the battery.. |
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What are basic things you can do in the BIOS after lunching the system setup? |
-view and configure memory or RAM -View and enable/disable storage devices like Hard Drive and Optical drive --View and do some configurations on CPU -view Date and time |
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What are some advanced configurable settings in BIOS |
Can change how BIOS is configured Change how the boot process starts Can change boot settings so device order can be changed or some disabled/enabled |
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What are security settings that can be configured in BIOS |
You can set to require pw on every bootup before OS loads You can add supervisor pw so that no BIOS settings can be changed without pw |
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What extra feature do some motherboards put extra in their BIOS? |
Hardware diagnostics. |
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What should you always do when making changes to the BIOS |
Make a backup, take notes, take a picture—so that you can always go back to the former settings. |
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What does BIOS pw/user pw do? |
System won’t start without password-OS won’t even load |
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What does the BIOS supervisor PW do? |
Restricts access to make BIOS changes |
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What is windows bitlocker? |
It allows Full disk encryption |
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What is TPM? |
Trusted Platform Module |
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What does TPM do |
Adds cryptographic functions to enable encryption of entire system through integration with the BIOS |
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Where is the TPM located? |
It is either part of the motherboard or is added into an expansion slot |
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What is Lojack for laptops? |
It is part of the BIOS that allows tracking down of laptop. BIOS automatically installs a version of Lojack on any OS on the system. Lojack sends location information—called the ‘phone home’ function. Lojack has a theft mode which remotely locks the laptop or deletes files or forces a startup pw |
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What does it mean to upgrade firmware? |
Could mean upgrading the nonvolatile memory or software that starts up the device. It could mean upgrading read only memory in older BIOS by swapping out an old chip for a newer one. Nowadays, BIOS is in flash memory so upgrading means just changing software; no need to replace any chips. Could mean upgrading firmware in Cumputer BIOS, or in video adaptor, or game console, etc. |
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Why is firmware upgraded. |
To provide new features or to fix bugs |
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Why is firmware upgrades NOT a normal maintenance process? |
Firmware should only be upgraded to fix bugs are if new features are needed. Upgrading firmware runs the risk of rending system unusable. |
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How can you identify the current BIOS version |
It flashes by quickly when starting up system. From Windows you can see it in System information from windows utility or running msinfo32 from the command line. |
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What should you do before upgrading the BIOS? |
Read the documentation IF the BIOS upgrade is interrupted this could render the system unusable. So, locate a stable power source. Laptops should have fully charged battery and be plugged in. Desktops should be plugged into a UPS (Uninterruptable Power Source) |
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How do you run the BIOS upgrade program? |
old Legacy BIOS upgrades may require a boot disk or optical media. Most modern upgrades run as an executable from within the OS. Close all other applications before running. |
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How do some new motherboards make upgrading BIOS less risky? |
Some have a backup BIOS chip. Some allow upgrading from a USB flash drive. |
