0
What else can I help you with?
What programs are used to create databases?
There are lots of programs that can be used to create databases. People use programs like Microsoft Access. They use Oracle. They use dBase. They use MySQL. They use many others. People can also write their own programs to do it.
What happens when a CPU is interrupted?
When a CPU receives an Interrupt Request (IRQ), it first checks if it must react to the interrupt. So-called Maskable Interrupts allow a programmer to specify that the CPU does ignore it, while Non-Maskeable Interrupt requests must be serviced. It is important to note that an Interrupt is a way to communicate asynchronously with the CPU - very much like sending an email. When you send an email to a person, you cannot know at which time the person reads the message, let alone when the person reacts. A phone call, on the other hand is synchronous (happening at the same time): when I call you, you must answer right now. Interrupts where introduced to allow tgis email-like communication with slower hardware, like a hard-disk. This way, the CPU can order something from the HD, like "go to this location", the CPU can then return to more important stuff, while the HD seeks. When the HD is done, it sends the CPU an IRQ, which tells the CPU "I am done, talk to me". The CPU then does a so-called contex-switch, which is a rather costly operation: it must store all the data it was working on earlier in some secure way, normally on the stack and then begin to execute the so-called Interrupt Handler, a piece of software associated with the number of the IRQ. After executing it, it can carry on doing what it did earlier (after having loaded all the data back into its registers). The concept of IRQs make multi-tasking possible, here, the OS interrupts each process after its time-slice has expired.
What is address sequencing in computer organization?
Microinstructions are stored in control memory in groups, with each group specifying routine. Each computer instruction has its own microprogram routine in control memory to generate the microoperations that execute the instruction. The hardware that controls the address sequencing of the control memory must be capable of sequencing the microinstructions within a routine and be able to branch from one routine to another. To appreciate the address sequencing in a microprogram control unit, let us enumerate the steps that the control must undergo during the execution of a single computer instruction. An initial address is loaded into the control address register when power is turned on in the computer. This address is usually the address of the first microinstruction that activates the instruction fetch routine. The fetch routine may be sequenced by incrementing the control address register through the rest of its microinstructions. At the end of the fetch routine, the instruction is in the instruction register of the computer. The control memory next must go through the routine that determines the effective address of the operand. A machine instruction may have bits that specify various addressing modes, such as indirect address and index registers. The effective address computation routine in control memory can be reached through a branch microinstruction, which is conditioned on the status of the mode bits of the instruction. When the effective address computation routine is completed, the address of the operand is available in the memory address register. The next step is to generate the microoperations that execute the instruction fetched from memory. The microoperation steps to be generated in processor register depend on the operation code part of the instruction. Each instruction has its own microprogram routine stored in a given location of control memory. The transformation from the instruction code bits to an address in control memory where the routine is located is referred to as a mapping process. A mapping procedure is a rule that transforms the instruction code into a control memory address. Once the required routine is reached, the microinstructions that execute the instruction may be sequenced by incrementing the control address register, but sometimes the sequence of microoperations will depend on values of certain status bits in processor registers. Micro programs that employ subroutines will require an external register for storing the return address. Return addresses cannot be stored in ROM because the unit has no writing capability. When the execution of the instruction is completed, control must return to the fetch routine. This is accomplished by executing an unconditional branch microinstruction to the first address of the fetch routine. In summary, the address sequencing capabilities required in control memory are: 1. Incrementing of the control address register. 2. Unconditional branch or conditional branch, depending on statues bit conditions. 3. A mapping process from the bits of the instruction to an address for control memory. 4. A facility for subroutine call and return.
Is there marathi site about ICT and e-learning?
Yes, I have stated my own service for Marathi E-learning programs. Check the link below. It is meant for all the segments who may require Elearning in Marathi
What companies do an internet speed check?
You can find software to check your broadband speed from your internet service provider. There is usually something you can download on their website if you look.
What kind of fitness training can I do at home?
There are plenty of television programs that can help lead you through a healthy thirty minute work out routine. Or you can plan your own schedule around your house depending on your own needs.
What did the Romans develop on their own.?
their own languageCatholicismsockshealth programs for the poor
What is a stripper's routine?
Each has her own.
What does cascada like to do?
=Make up her own dance routine to her own songs!=
What did the develop on their own?
their own languageCatholicismsockshealth programs for the poor
What is hardware interrupt of 8085 microprocessor with vector interrupt?
In the 8085 microprocessor, a hardware interrupt is a signal from an external device that temporarily halts the CPU's current operations to allow the device to communicate with the processor. A vector interrupt specifically refers to an interrupt that has a predefined memory address (vector) associated with it, which the processor jumps to when servicing the interrupt. For instance, the 8085 has several hardware interrupts, such as INTR, RST 7.5, RST 6.5, and RST 5.5, each with its own unique vector address, allowing for efficient and organized handling of multiple interrupt sources. This mechanism enables real-time processing and responsiveness to external events in embedded systems.
What is the difference between interrupt and system call?
A processor executes its instructions one after another. One of the instructions it can execute is a subroutine call, where it suspends executing the current set of instructions, goes off and executes another set and then returns. This is referred to as 'calling a subroutine.' A 'system call' is a call to a subroutine built into the system, rather than a call to one in your own program. Calls and interrupts work similarly, in that to process an interrupt, the processor goes off and executes a different set of instructions and returns. However, calls are synchronous, they occur in fixed order determined by the program, and the processor only has to remember where it was so it can return to the proper place. Interrupts are asynchronous, they can occur at any time, such as when you hit a key on the keyboard, thus the processor has to remember its place and its state, because the interrupt likely has nothing to do with what it was doing at the time of the interrupt.Disturbing other
What did Romans develops on their own?
their own languageCatholicismsockshealth programs for the poor
What virus can interrupt almost any function executed by the computer operating system and alter it for its own malicious purposes?
Resident
What is the daily routine of a parish priest?
Every priest has his own routine depending upon his responsibilities and engagements for the day. That would be like asking 'What is the daily routine of a teenager?'
Are there any free software programs to help design your own logo?
There are a large number of different varieties of free software programs that help people to design their own logos. These programs include LogoYes and AAA Logo.
How do you compose your own music?
you can get special programs on your computer
