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The Primary Bootloader (PBL), which is stored in the Boot ROM [3] is the first stage of the boot process. This code is written by the chipset manufacturer. [4] The PBL verifies the authenticity of the next stage. On Samsung smartphones, the Samsung Secure Boot Key (SSBK) is used by the boot ROM to verify the next stages. [5]
This PC Card snafu was a major factor in Compaq's decision to cancel their Concerto tablet in August 1994. [ 22 ] In late November 1994, Compaq again briefly suspended production of the LTE Elite in their Houston factory after discovering a bug in their BIOS ROM that prevented the units from recognizing RAM upgrades over 16 MB.
In these cases a computer can often be "redirected" to boot from a USB device through use of an initial bootable CD or floppy disk. [ 5 ] [ 6 ] [ 7 ] Some Intel-based Macintosh computers have limitations when booting from USB devices – while the Extensible Firmware Interface (EFI) firmware can recognize and boot from USB drives, it can do ...
A modern PC is configured to attempt to boot from various devices in a certain order. If a computer is not booting from the device desired, such as the floppy drive, the user may have to enter the BIOS Setup function by pressing a special key when the computer is first turned on (such as Delete, F1, F2, F10 or F12), and then changing the boot order. [6]
In this example of dual booting, the user chooses by inserting or removing the DVD from the computer, but it is more common to choose which operating system to boot by selecting from a boot manager menu on the selected device, by using the computer keyboard to select from a BIOS or UEFI boot menu, or both; the boot menu is typically entered by ...
The TC1000 is a 10.4" laplet designed by Compaq, before it was purchased by HP.It used the Transmeta Crusoe processor. Unlike many other tablet PCs of its time (which can only operate either in a traditional laptop configuration, or with the keyboard folded behind the screen), the display is fully detachable from the keyboard.
[8]: 34 Compaq offered the baseline, 8086-equipped LTE with either an internal 20-MB Conner hard drive or no hard drive at all (while still possessing a floppy drive). On the other hand, Compaq offered users the option to buy the 286-based LTE/286 with a 40-MB hard drive, a 20-MB hard drive, or no hard drive. [8]: 34 [a]
After the Compaq Deskpro 386 became the first 80386-based PC, PC wrote that owners of the new computer did not need to fear that future IBM products would be incompatible with the Compaq, because such changes would also affect millions of real IBM PCs: "In sticking it to the competition, IBM would be doing the same to its own people". [72]