Case:After the customer is turned on normally, the hard disk does not recognize the hard disk. Solution:The old Samsung SP0802N all has a common problem, that is, there will be a slight knocking sound at this time after the power is working, and then the motor is stopped. In our case, this kind of problem…
We first look at the following two pictures. Picture 1 is the “BIOS CHIP” of the circuit board. When we replace the PCB, we need to swap the “BIOS CHIP” with your original PCB. Picture 2 shows the “Board Number” of the board, and the “Board Number” must be the same! FAQs of 100512588 PCB…
Case:The customer’s maintenance of the computer is a blue screen. It is a blue screen when it is turned on to skip the BIOS detection item. The hard disk is normal. After entering the PE, the hot -hanging hard disk is also blue screen. Solution:After getting me here, I hung PC3K normally without errors, and…
Network-attached storage (NAS) is file-level computer data storage connected to a computer network providing data access to heterogeneous network clients.
A NAS unit is a computer connected to a network that only provides file-based data storage services to other devices on the network. Although it may technically be possible to run other software on a NAS unit, it is not designed to be a general purpose server. For example, NAS units usually do not have a keyboard or display, and are controlled and configured over the network, often using a browser.
A fully-featured operating system is not needed on a NAS device, so often a stripped-down operating system is used. For example, FreeNAS, an open source NAS solution designed for commodity PC hardware, is implemented as a stripped-down version of FreeBSD.
NAS systems contain one or more hard disks, often arranged into logical, redundant storage containers or RAID arrays (redundant arrays of inexpensive/independent disks). NAS removes the responsibility of file serving from other servers on the network.
NAS uses file-based protocols such as NFS (popular on UNIX systems), SMB/CIFS (Server Message Block/Common Internet File System) (used with MS Windows systems), or AFP (used with Apple Macintosh computers). NAS units rarely limit clients to a single protocol.
From Wikipedia: http://en.wikipedia.org/wiki/Network-attached_storage
Scientists have created a rudimentary data storage device using salmon DNA
Salmon … they’re good to eat, provide a livelihood for fishermen, are an important part of their ecosystem, and now it seems that they can store data. More specifically, their DNA can. Scientists from National Tsing Hua University in Taiwan and the Karlsruhe Institute of Technology in Germany have created a "write-once-read-many-times" (WORM) memory device, that combines electrodes, silver nanoparticles, and salmon DNA. While the current device is simply a proof-of-concept model, the researchers have stated that DNA could turn out to be a less expensive alternative to traditional inorganic materials such as silicon.
The device is made up of a thin film of salmon DNA that has been impregnated with silver atoms, then sandwiched between two electrodes. When UV light is shone onto the system, the atoms cluster together into nanoparticles.
Subsequently, when no or little voltage is applied to the electrodes, only a low electrical current is able to travel through the UV-irradiated DNA. This is the equivalent of the device’s "off" state. Because the material is unable to hold a charge under a high electrical field, however, once the voltage exceeds a certain threshold, a higher current is able to travel through the DNA. This represents the "on" state.
These changes in conductivity were found to be irreversible – once the device has initially been set to either "on" or "off" it stays that way, regardless of what voltages are subsequently applied. Even after up to 30 hours, it retains its conductivity.
The scientists are now hoping that their discovery could lead to new techniques for the design of optical storage devices.
This isn’t the first time that DNA has been suggested for such applications. Researchers at Imperial College London have created logic gates using DNA and bacteria, while American scientists have genetically engineered the bacterium E. coli to coax its DNA into computing the solution to a classic mathematical puzzle.
A paper on the salmon DNA research was recently published in the journal Applied Physics Letters.
I am attempting to set up my Raspberry Pi as a bridge, using Debian wheezy. I have a hostapd.conf: (some details changed for security, and yes, I know WEP is no good)… interface=wlan0bridge=br0driver=nl80211auth_algs=1macaddr_acl=0ignore_broadcast_ssid=0logger_syslog=-1logger_syslog_level=0hw_mode=gssid=MY_SSIDchannel=11wep_default_key=0wep_key0=MY_KEYwpa=0 And this in /etc/network/interfaces: auto loiface lo inet loopbackiface eth0 inet dhcpallow-hotplug wlan0iface wlan0 inet manualwpa-roam /etc/wpa_supplicant/wpa_supplicant.confiface default inet dhcpauto br0iface br0…
Like many people I take quite a few photos, and also like quite a few people I don’t back up as frequently as I should. What I’d like to be able to do is automatically synchronize my “to be backed up” folder to some of the other machines that live on my home network. I…
We first look at the following two pictures. Picture 1 is the “BIOS CHIP” of the circuit board. When we replace the PCB, we need to swap the “BIOS CHIP” with your original PCB. Picture 2 shows the “Board Number” of the board, and the “Board Number” must be the same! FAQs of 100406533 PCB…
HDD Printed circuit board (PCB) with board number 2060-771824-001 is usually used on these Western Digital hard disk drives: WD10EZLX-00K4KA0, DCM EARCNV2CH, Western Digital 1TB SATA 3.5″ Hard Drive The 2060-771824-001 Western Digital PCB repair process can usually be divided into 2 steps: find a replacement PCB and firmware transfer. 2060-771824-001 Western Digital PCB: Board…
We first look at the following two pictures. Picture 1 is the “BIOS CHIP” of the circuit board. When we replace the PCB, we need to swap the “BIOS CHIP” with your original PCB. Picture 2 shows the “Board Number” of the board, and the “Board Number” must be the same! FAQs of 040110200 PCB…
