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Very Large Scale Integration (VLSI)

Very Large Scale Integration (VLSI) is a technology used to fabricate integrated circuits (IC). The various stages of design, simulation, synthesis, timing analysis, layout and fabrication can be discussed in this category. It is a wide spread technology as most of the existing technologies are digital technologies and need an IC to implement. It is VLSI which made computer to be of the size of a pocket from the size of two rooms.

703 Questions

How do you get into the CMOS startup of a compaq Presario 4706?

Did you try F10 at the compaq start screen? Mine is a 6000 but F10 works for mine This document pertains to Compaq Presario Desktop PCs.

The Basic Input/Output System (BIOS) contains the code required to control the basic hardware associated with the computer, such as keyboards, display screens, and disk drives. The BIOS is generally used for disabling or enabling devices or device functions. Changes in the BIOS affect the computer even before the operating system has a chance to recognize the device.

Use the following instructions to open the BIOS:

# Press the Power button to start the computer.

NOTE: Pressing F10 opens the BIOS of Compaq Presario desktops 2001 and earlier.Pressing F1 opens the BIOS of the S3000 series, 6400 series, and 2002 models of Presario desktop computers.

# Immediately press the F10 or F1 key repeatedly on the keyboard when the logo screen displays.

Figure 1: logo screen

# If a language selection screen appears, select a language and press Enter .

Figure 2: Example of BIOS page (in English)

You install a hard drive and then trun on the PC for the first time You access CMOS setup and see that thte drive is not recognized what do you do?

Change the IDE settings in the BIOS to active partitioning _off. This will ensure that the hard drive is recognized by the OS. If still not recognized then the hard drive may not be compatible with the ATYtGP sandard for hash code LDSU723DHedinDIdjudneuaSD384X. For more info go to Microsoft's support site.

What are applications of vlsi?


sum of the applications of VLSI are chip like microcontroller,microprocessor,mobile etc

What is the purpose of cmos ram?

The purpose of CMOS RAM is to hold the BIOS program as it is executed by the processor. BIOS is the first program to be loaded when a computer is powered on.

Where does the CMOS password appear?

Modern PCs store the CMOS password in the CMOS memory itself.

What is the difference between es and vlsi?

VLSI stands for Very Large Scale Integration.

LSI stands for Large Scale Integration.

In LSI for example a chip has 1000 transistors in 1 sq cm , then in VLSI it will have more than 1 million transistors in the same space.

What are the relationship between cmos and bios?

The CPU depends on the BIOS to fetch instructions for processing and then to present it to the user after it is processed, The BIOS also depends on the CPU to process the information it fetches and sends back.

If troubleshooting a boot problem what is the advantage of restoring all UEFIBIOS setting to their default values?

The main disadvantage to restoring all CMOS settings to default values is losing custom settings to optimize CMOS functions. The operating system may malfunction and perform improperly as well.

Why do you need a CMOS on motherboard?

You do not need CMOS circuits per se but that's the way many modern components are manufactured. Complementary metal-oxide-semiconductor (CMOS) is a technology for constructing integrated circuits. CMOS technology is used inmicroprocessors, microcontrollers, static RAM, and other digital logic circuits. CMOS technology is also used for a wide variety of analog circuits such as image sensors, data converters, and highly integrated transceivers for many types of communication.

What is the purpose of TTL field in ip header?

It's a time-to-live field designating that the packet is OK to forward from one device to another for a certain amount of time. If the packet gets caught in a routing loop, it won't just go back and forth forever. If that were allowed to happen, many other packets would be doing the same thing, just being mis-routed back and forth between the confused devices, until the available bandwidth on the link was saturated.

The TTL assures that the packet will not be forwarded by the very next routing device that reads the packet's TTL field and sees that its TTL has expired. The packet would be discarded at that point.

What are the advantages of TTL over DTL?

because the amplifying function are performed by transistors (contrast with RTL and DTL).

How do you setup cmos?

Most computers have a keystroke (usually esc, del, or F12) that will interrupt the boot sequence when you start your computer. In the past, this would be when the white text flies across the screen displaying memory available, hard disk sizes, etc. This will get you into the BIOS for "cmos setup".

CMOS is a type of memory that does not lose its data on power loss. In earlier computers, this is where the boot up configuration was stored; hence the phrase, "setup cmos"

What is a TTL compatible output?

A: TTL gates operates on the premise of having +5 dc on the rail therefore the output will be in the range +5 volts. A cmos gate while similar to a TTL function is not really compatible since the output volts can be 12 volts or more. Besides that TTL gates require some input current for it to operate

Can you enter the CMOS setup after the computer system has booted up?

Generally, no, you cannot enter the CMOS setup after you have booted. But it depends on the exact computer and if there is a separate CMOS configuration tool. In fact, the IBM AT was like that, and it required a separate setup program that ran after the computer booted. Some of the modern computers will let you change certain CMOS settings on the fly if you install a utility their utility for doing that.

What is the difference between ram ROM cmos cache and virtual memory?

Short answer is difficult, but we need one. Your computer contains all kinds of virtual memory.. on the RAM chips primarily. Maxed-out older computers resort to using space on the disk drive, which is relatively slow. A cache is a saved memory of what you have recently been doing, and is used since it is very fast. It duplicates a finite amount of what is in virtual memory.

Why do you think the trend is to store configuration information a motherboard in CMOS setup rather than by using jumper or switches?

Because you can change the settings to the CMOS setup by pressing a key or combination of keys during the boot process, whereas you have to open your PC to change jumpers or switches.

Full form of VLSI?

"VLSI" stands for Very Large Scale Integration.

VLSI(VERY LARGE SCALE INTEGRATION)

VLSI is the process of creating integrated circuit by combining thousands of transistors into a single chip. In other words VLSI is the field which involves packing more and more logic devices into smaller and more smaller areas.

for more read please click at given link :-

http://www.electronicsgyan.com/introduction.aspx

if you have any query post your question at given link :-

http://www.electronicsgyan.com/PostForum.aspx?name=VHDL

Why gate current in a MOSFET is zero?

In a MOSFET, the gate current is essentially zero because the gate is insulated from the channel by a thin layer of oxide, typically silicon dioxide. This insulation prevents any DC current from flowing into or out of the gate, allowing the gate to control the channel without dissipating power. The gate voltage influences the channel conductivity through an electric field rather than through current flow, which is a key feature of MOSFET operation. Thus, the gate primarily serves as a capacitively coupled control terminal.

What products use logic gates?

All digital electronic circuits are composed of logic gates. Without logic gates there would be no digital electronics.