1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nikolay [14]
3 years ago
14

Which of the following are examples of IT

Computers and Technology
1 answer:
Advocard [28]3 years ago
7 0

Answer:

Computer hardware engineer

Systems analyst

Database administrator

You might be interested in
Discuss the DMA process​
shusha [124]

Answer:

Direct memory access (DMA) is a process that allows an input/output (I/O) device to send or receive data directly to or from the main memory, bypassing the CPU to speed up memory operations and this process is managed by a chip known as a DMA controller (DMAC).

Explanation:

A defined portion of memory is used to send data directly from a peripheral to the motherboard without involving the microprocessor, so that the process does not interfere with overall computer operation.

In older computers, four DMA channels were numbered 0, 1, 2 and 3. When the 16-bit industry standard architecture (ISA) expansion bus was introduced, channels 5, 6 and 7 were added.

ISA was a computer bus standard for IBM-compatible computers, allowing a device to initiate transactions (bus mastering) at a quicker speed. The ISA DMA controller has 8 DMA channels, each one of which associated with a 16-bit address and count registers.

ISA has since been replaced by accelerated graphics port (AGP) and peripheral component interconnect (PCI) expansion cards, which are much faster. Each DMA transfers approximately 2 MB of data per second.

A computer's system resource tools are used for communication between hardware and software. The four types of system resources are:

  •    I/O addresses
  •    Memory addresses.
  •    Interrupt request numbers (IRQ).
  •    Direct memory access (DMA) channels.

DMA channels are used to communicate data between the peripheral device and the system memory. All four system resources rely on certain lines on a bus. Some lines on the bus are used for IRQs, some for addresses (the I/O addresses and the memory address) and some for DMA channels.

A DMA channel enables a device to transfer data without exposing the CPU to a work overload. Without the DMA channels, the CPU copies every piece of data using a peripheral bus from the I/O device. Using a peripheral bus occupies the CPU during the read/write process and does not allow other work to be performed until the operation is completed.

With DMA, the CPU can process other tasks while data transfer is being performed. The transfer of data is first initiated by the CPU. The data block can be transferred to and from memory by the DMAC in three ways.

In burst mode, the system bus is released only after the data transfer is completed. In cycle stealing mode, during the transfer of data between the DMA channel and I/O device, the system bus is relinquished for a few clock cycles so that the CPU can perform other tasks. When the data transfer is complete, the CPU receives an interrupt request from the DMA controller. In transparent mode, the DMAC can take charge of the system bus only when it is not required by the processor.

However, using a DMA controller might cause cache coherency problems. The data stored in RAM accessed by the DMA controller may not be updated with the correct cache data if the CPU is using external memory.

Solutions include flushing cache lines before starting outgoing DMA transfers, or performing a cache invalidation on incoming DMA transfers when external writes are signaled to the cache controller.

4 0
3 years ago
Read 2 more answers
Define function print_popcorn_time() with parameter bag_ounces. If bag_ounces is less than 3, print "Too small". If greater than
Lynna [10]

Answer:

def print_popcorn_time(bag_ounces):

 if bag_ounces<3:

   print("Too Small")

 elif bag_ounces>10:

   print("Too Large")

 else:

   bag_ounces = bag_ounces*6

   print("%s Seconds\n" % bag_ounces)    

Explanation:

  • Using Python Programming Language
  • The function is defined to accept an int parameter
  • Within the function body, if...elif and else statements are used to print the desired output
  • note the use of the %s placeholder (formated output) and \n for a new line in the final print statement
4 0
3 years ago
___________ connects different types of computers in LAN?
strojnjashka [21]

Answer:

a) Switch

Explanation:

hope this helps you

8 0
3 years ago
Read 2 more answers
Hurry please i need this ASAP<br><br>What might be some advantages to keeping CSS and HTML separate?
marusya05 [52]

Answer:

The separation of HTML from CSS makes it easier to maintain sites, share style sheets across pages, and tailor pages to different environments. This is referred to as the separation of structure (or: content) from presentation.

Explanation:

I think this right don't add me right then add

6 0
2 years ago
Is technology a legal discipline or law is a technological artifact.
ANEK [815]

Answer:Technology law scholars have recently started to consider the theories of affordance and technological mediation, imported from the fields of psychology, human-computer interaction (HCI), and science and technology studies (STS). These theories have been used both as a means of explaining how the law has developed, and more recently in attempts to cast the law per se as an affordance. This exploratory paper summarises the two theories, before considering these applications from a critical perspective, noting certain deficiencies with respect to potential normative application and definitional clarity, respectively. It then posits that in applying them in the legal context we should seek to retain the relational user-artefact structure around which they were originally conceived, with the law cast as the user of the artefact, from which it seeks certain features or outcomes. This approach is effective for three reasons. Firstly, it acknowledges the power imbalance between law and architecture, where the former is manifestly subject to the decisions, made by designers, which mediate and transform the substance of the legal norms they instantiate in technological artefacts. Secondly, from an analytical perspective, it can help avoid some of the conceptual and definitional problems evident in the nascent legal literature on affordance. Lastly, approaching designers on their own terms can foster better critical evaluation of their activities during the design process, potentially leading to more effective ‘compliance by design’ where the course of the law’s mediation by technological artefacts can be better anticipated and guided by legislators, regulators, and legal practitioners.

Keywords

Affordance, technological mediation, postphenomenology, legal theory, compliance by design, legal design

7 0
3 years ago
Other questions:
  • A company decides to create static design diagrams for an upcoming project. Which statement correctly describes the attribute of
    6·1 answer
  • Given the following code fragment, what is the data type of roster[9] .name? struct student { string name; double gpa; }; studen
    5·1 answer
  • This is for the folks that is rude:
    12·1 answer
  • What would you recommend for data segregation if using cloud software
    12·2 answers
  • If anybody knows what does this mean I will answer any questions for you and plz answer this right plz what does that envelope w
    5·2 answers
  • An electronic braille embosser that translates text from a braille keyboard to a printer:
    10·1 answer
  • How to fix Please enable JS and disable any ad blocker
    13·2 answers
  • Technician A says that to cover all possible vehicle conditions, coolant must have a high freezing point. Technician B says cool
    6·2 answers
  • What quantities are measured by the following sensors:
    9·1 answer
  • What electronic device can represent a KiloByte?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!