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seen Apr 4 at 13:30

Mar
11
comment Ambulence-like sound when Thinkpad T400's battery is running out of power
(1) How can I check and set the sound when battery power is running low? (2) It is very loud. It used to be just one or two beeps. No one other than me has used the laptop. I did change BIOS setting to eliminate the beep when plug-in and out of wall power a while ago. But that shouldn't change the lower battery power sound, does it?
Jan
27
comment DIfferences between firmware and middleware and device driver?
Thanks! Do you mean an API is middleware? Middleware is software, while API isn't. So why is an API middleware?
Jan
27
comment DIfferences between firmware and middleware and device driver?
Thanks! What kind of software is the bootloader, given that it is neither firmware nor middleware?
Jan
27
comment DIfferences between firmware and middleware and device driver?
Thanks! Is the device driver middleware?
Jan
26
comment Does data go from primary memory to CPU register directly without going to cache memory?
@IgnacioVazquez-Abrams: For example, the intel CPU in Thinkpad T400 laptop
Jan
26
comment Does data go from primary memory to CPU register directly without going to cache memory?
@Ignacio: No specific CPU. Just general CPUs in most computers
Jan
26
comment Does data go from primary memory to CPU register directly without going to cache memory?
I edited my post, and hope it is clearer.
Jan
26
comment Does data go from primary memory to CPU register directly without going to cache memory?
registers in CPU
Jan
26
comment primary and secondary boot loaders
(4) When booting Ubuntu, the first stage of GRUB in the MBR will load the second stage of GRUB in the VBR of Ubuntu partition. When booting Windows, the first stage of GRUB in the MBR will load the first stage of the boot loader of Windows stored in the VBR of the Windows partition, which in turned loads the second stage of the boot loader of Windows stored in the same VBR?
Jan
26
comment primary and secondary boot loaders
Thanks! Is my following understanding correct? (1) Each OS has its own boot loader. The one for ubuntu is GRUB, and what is the boot loader for Windows 7? (2) The first stage of GRUB is installed in the MBR of the drive, so GRUB is the primary boot loader, and the boot loader of Windows 7 is the secondary boot loader. The second stage of GRUB is stored in the VBR of the Ubuntu partition, and the boot loader (including both its first and second stages) of Windows 7 is stored in the VBR of the Windows partition.
Jan
26
comment primary and secondary boot loaders
In my laptop, Windows and ubuntu were installed one after another on different partitions of the hard drive. When I installed Ubuntu, I installed GRUB as the boot loader. So are the boot loaders for both Ubuntu and Windows GRUB?
Jan
25
comment How to enter BIOS on Lenovo T400?
I haven't. Can i enter bios and change its configuration without restarting my OS?
Jan
6
comment Not permitted to create a new directory on a ntfs partition?
yes. Sometimes, i have the permission, and sometimes I don't. It is not stable.
Dec
28
comment How to diagnose why a computer is running so slow?
32-bit Ubuntu 12.04 on T400.
Dec
27
comment Does Windows 8 not support path longer than a certian length such as 256 characters?
But in my Ubuntu, I can create and access pathname much longer than 255 chareacters.
Dec
27
comment Does Windows 8 not support path longer than a certian length such as 256 characters?
filename and pathname are different right?
Dec
27
comment Can I install multiple Windows 7 on the same laptop, one of them under virtual machine under Ubuntu?
For #1, do you mean I can only install Windows 7 either independently of Ubuntu, or under virtual machine under Ubuntu, but not both?
Dec
27
comment Matching CPU frequency and RAM frequency
Thanks. BY "divider", do you mean ratio?
Dec
26
comment Can T400 work with 1333 MHz RAM?
maximum frequency on RAM?
Dec
26
comment Can T400 work with 1333 MHz RAM?
In general, CPU frequency is much higher than RAM frequency. So what determines the expected frequency of RAM that can work with a given computer?