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How is the date of manufacture found?
# Enter the computer CMOS / BIOS and the date may be listed at the top or bottom of the first screen. # Do the below to determine the BIOS date with a debug routine:At the C:\> type debug - d FFFF:5 L 8 After typing the above command you should receive a string similar to: FFFF:0000 30 34 2F-33 30 2F 39 38 4/30/98 The 4/30/98 would be the date of your computer BIOS. # Enter the computer CMOS / BIOS and the date may be listed at the top or bottom of the first screen. # Do the below to determine the BIOS date with a debug routine:At the C:\> type debug - d FFFF:5 L 8 After typing the above command you should receive a string similar to: FFFF:0000 30 34 2F-33 30 2F 39 38 4/30/98 The 4/30/98 would be the date of your computer BIOS.
Where can I get ic 74lcxh16245 data?
74LCXH16245Low Voltage 16-Bit Bidirectional Transceiver with BusholdGeneral Description The LCXH16245 contains sixteen non-inverting bidirec- tional buffers with 3-STATE outputs and is intended for bus oriented applications. The device is designed for low volt- age (2.5V or 3.3V) VCC applications with capability of inter- facing to a 5V signal environment. The device is byte controlled. Each byte has separate control inputs which could be shorted together for full 16-bit operation. The T/R inputs determine the direction of data flow through the device. The OE inputs disable both the A and B Ports by placing them in a high impedance state. The LCXH16245 data inputs include active bushold cir- cuitry, eliminating the need for external pull-up resistors to hold unused or floating data inputs at a valid logic level. The LCXH16245 is fabricated with an advanced CMOS technology to achieve high speed operation while maintain- ing CMOS low power dissipation abricated with an advanced CMOS technology to achieve high speed operation while maintain- ing CMOS low power dissipation FOR 74lcxh16245 pdf download http://www.chinaicmart.com/suppliers/773/74LCXH16245.html
Does CPU work on DC current?
A CPU works off of DC voltage. If you monitor the current draw of a CPU, it will likely not be DC, since a modern CPU is a CMOS design, current is only drawn when transistors are switched (ignoring the small leakage current). This is why overclocking (forcing the transistors to switch faster) can cause the CPU to overheat, and why "power save" mode on a laptop sometimes slows down the processor speed.
Do computers have batteries?
In a desktop computer the battery is located on the PC motherboard. It looks like a silver button about the size of a quarter, in the center of a black circle of plastic. In a laptop the battery is quite a bit larger and is usually found on the bottom of the laptop near the back, underneath the screen hinge.
What problem do refractor telescopes have that reflectors dont?
There are several disadvantages with a refracting telescope.1. Chromatic aberration is one, where all colours are not focused at the same point.2. The mass of the lens, if large, could cause it to change shape as it is moved.3. It is essentially impossible to have an optically perfect lens surface, and any minute imperfection causes 'confusion' of the light ray passing through that point.4. Any lens surface will cause some reflection of light - light lost to the detector at the end point. You must have seen reflections of yourself, or of some landscape, from an ordinary transparent window glass. These reflections will re-reflect within a lens system, causing some optical confusion - loss of quality of the image.Large modern reflector type telescopes avoid these problems by minimizing the number of glass surfaces between the incoming light and the recording surface. These days, the recording surface is usually a cmos, or similar, solid state detector.
What action should always be taken before upgrading a hard disk?
Save the values of the installed drives CMOS setup values for use with the new drives.
Why CMOS is the most popular integrated circuit technology?
although very sensitive to static electricity, CMOS is very stable compared to other (older) technologies. it also can handle wider voltage ranges (standard 3.3volt to 18volt) upto 40volt in some cases. in addition CMOS requires very little current (amps) compared to other technologies (1/1000 of amps required for ttl) the static problem is overcome with good handling practices (always earth your hand and handling equipment to each other)
What is a CMOS socket?
A CMOS socket is to plug a CMOS transistor into. Alternatively, a CMOS socket is to plug a CMOS integrated circuit into. CMOS, by the way, stands for, "Complementary Metal Oxide Semiconductor".
Why does my computer go straight to the bios?
You likely mean that it is going directly to the CMOS Setup. Every computer with a BIOS boots using the BIOS, but if the BIOS detects problems with the CMOS data, it goes to the CMOS setup so the user can fix it. What the BIOS does is verify to see if the calculated checksum of the stored data matches the recorded checksum. If they don't match, the CMOS settings are dumped and changed to the defaults, and the user is either prompted or taken to the CMOS settings.While the CMOS can be scrambled at random or due to misbehaving software, the main cause would likely be a bad CMOS battery. It could also mean the CMOS chip is failing (since some contain an integrated battery) or that there are other hardware errors -- such as a stuck keyboard or a bad hard drive. It generally should tell you why you are being sent there. In a rare situation, someone may have the CMOS jumper in the wrong place, perhaps because they bought a motherboard themselves and received it that way.
Where the system date and time is stored?
it should be there in bios..
Why should you keep a written record of all the changes you have made to CMOS?
you should keep a written record for your CMOS just incase the NCOS disfunctions in the hard drive that keeps record of all of the stuff you have done.
Where is cmos setup stored?
Cmos ram.
Where does the CMOS password appear?
Modern PCs store the CMOS password in the CMOS memory itself.
What is c mos ram?
Cmos ram refers the random access memory used by the cmos which is the primary bios setup on the computer. Most computers use a regular loaded ram to load the basic input output system. The cmos ram can also sometimes refer to the cache that the motherboard has. In general when you mention cmos three things should come into mind. The CMOS battery, the CMOS ram ( stores settings) and the BIOS (basic input output system) Hope this Helps!
Safety notes in an electronic workshop?
do not touch any equipment that you dont know how it works follow the instructions very carefully of the experiment you are doing do not eat or smoke while doing practicals dont touch bare wires orconnections. make sure that you dont diassemble the components unless te supervisor tell you to do so.
What should you do if you get the POST error CMOS checksum bad?
cmos ram might be corrupt. run bios setup and reset bios to default settings. if it occurs again try, flashing bios.
Why does computer CMOS battery just drains out after a few days?
I would have to say that there is something bad in the circuitry of your motherboard. I would contact the manufacturer to see if you can get your mobo replaced because a CMOS battery should not do this.
