Module 1 System Unit Hardware Flashcards
What are the two types of passwords that can be enabled in the BIOS?
The User and Supervisor passwords. The User password can be enabled and this
will prevent the OS from starting. The Supervisor Password when enabled can
prevent access to the BIOS and prevents changes from being made.
What is the TPM and how is it used in the BIOS?
The TPM, Trusted Platform Module is a chip on the motherboard that can be
added or built-in and it enables Full Disk Encryption by maintaining the
encryption keys for encryption and decryption of the disk.
What is Lojack and what is it used for?
Lojack is a software that can be installed in the BIOS and when enabled, can
track, disable, and shutdown a laptop if lost or stolen if it’s connected to the
Internet. Lojack software was originally used for recovering stolen automobiles.
The software was formally known as computrace. When installed, the software
automatically installs to the hard drive, so if the hard drive is removed and
replaced, the software is installed again on the new hard drive thus enabling it to
still be located.
What does POST stand for and what is it used for?
POST – Power On Self-Test, is a portion of the boot process that a computer goes
through to check if its hardware components are working correctly. In the event a
hardware component is not working, a POST code will be issued and depending
on the severity will not boot the computer or complete the boot process in order
to protect the system. Error codes that are detected before the video drivers are
loaded will be in the form of audio tone patterns and after the video card loads
will display during the BIOS loading on the screen.
What is the purpose of a POST card?
A POST card is used for troubleshooting a computer. The POST card connects to
the motherboard of the system and visually displays the POST error code to
display error codes during the POST, (Power on Self-Test)
What is a peripheral?
Any device that can be plugged in or connected to a computer.
What are Input Peripherals and Output Peripherals?
Input Peripherals are any of the unlimited number of devices that can plug into a
computer to INPUT information into the system. Keyboard, touchpads, flatbed
scanners. Etc. Output Peripherals are any number of unlimited devices that
provide output of data from a computer. Printers, monitors, speakers, etc.
Where is the BIOS located on a system?
The BIOS chip is on the motherboard.
What is UEFI?
The Unified Extensible Firmware Interface, new generation BIOS that was implemented by Chip manufacturers can: ●Boot from large GPT disks (>2.2TB) ●Pre-boot has its own OS ●Able to connect remotely
What is a System Unit?
CompTia’s definition of what we call the PC or tower is the “System Unit” The
System unit is comprised of the CPU, hard drives, memory, motherboard, and
other internal components.
What is the purpose of the CMOS?
In systems with the legacy BIOS, settings were saved to CMOS so a
constant power source was needed to maintain the configuration.
What does virtualization has to do with the BIOS of a computer?
Enabling virtualization support is simple as enabling the feature in the
BIOS. By enabling this feature, the system would then support
virtualization.
What is Secure Boot?
Secure boot is a security standard developed by members of the PC
industry to help make sure that a device boots using only software that is
trusted by the Original Equipment Manufacturer (OEM).
What is the BIOS?
BIOS is what actually “starts” your system. BIOS performs hardware
checks on a computer system and starts up the OS.
What is the Boot Sequence?
The list of devices and the order in which they should be checked and be
found and arranged in the CMOS setup utility.
