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3 years ago

What technical was the microscope invented in?

Computers and Technology

1 answer:

Ilia_Sergeevich [38]3 years ago

8 0

Answer:

Two Dutch spectacle-makers and father-and-son team, Hans and Zacharias Janssen, create the first microscope in 1590.

Explanation:

A microscope is an instrument that makes an enlarged image of a small object, thus revealing details too small to be seen by the unaided eye. The most familiar kind of microscope is the optical microscope, which uses visible light focused through lenses. Eeuwenhoek observed animal and plant tissue, human sperm and blood cells, minerals, fossils, and many other things that had never been seen before on a microscopic scale. He presented his findings to the Royal Society in London, where Robert Hooke was also making remarkable discoveries with a microscope.

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Which business application uses electronic tags and labels to identify objects wirelessly over short distances?

Varvara68 [4.7K]

Answer:

Option A (Radio Frequency Identification)

Explanation:

Option A (Radio Frequency Identification)

Radio Frequency Identification:

This technology uses radio waves to transfer data between a reader and movable items. The benefit of this technology is we do not require physical contact with items and scanner.

Components of RFID:

tags (computer chip)
Reader
Communication System
RFID software

There are two RFID standards:

Electronic Product Code (EPC) standard
International Standard Organization (ISO)

4 0

3 years ago

The ability to learn a new computer software program is to ____________ as knowledge of state capitals is to _____________.

Montano1993 [528]

The ability to learn a new computer software program is to ADAPT as knowledge of state capitals is to COMMIT. Learning something new is to adapt and take time to study and learn what needs to be done in order for the task you wish to happen. To have knowledge of a specific thing, is to committing that face to your memory.

8 0

3 years ago

Write a pseudocode thats accept and then find out whether the number is divisible by 5

meriva

Answer:

input number

calculate modulus of the number and 5

compare outcome to 0

if 0 then output "divisible by 5"

else output "not divisible by 5"

Explanation:

The modulo operator is key here. It returns the remainder after integer division. So 8 mod 5 for example is 3, since 5x1+3 = 8. Only if the outcome is 0, you know the number you divided is a multiple of 5.

3 0

4 years ago

An archive of files that usually contain scripts that install the software contents to the correct location on the system is ref

Anika [276]

Answer:

Option 3 is the correct answer for the above question.

Explanation:

A tarball is a software which is used to encrypt the other software or hide the other software and make it small. It again makes the original software program from the encrypted ones.
It is used to make the file sort and can use for the transfer which takes some amount of memory.
The above question asked about that technology which is used to make encrypted software from the original software and use it with the help of some script. Then the answer is tarball which is referred to from option 3. Hence Option 3 is the correct answer for the above question while the other is not because--
Option 1 states about the package manager which is used to manage the library only.
Option 2 states about the DBMS which is used to manage the database.
Option 4 states about the router which is used for the internet.

8 0

3 years ago

Consider what fact-finding techniques you would use to identify the important facts needed to develop a database system. Please

8090 [49]

Answer:

Examples of Fact-finding techniques includes:

Prototyping
Questionnaires
Research and sites visit
Interviews

Explanation:

It is important to note that a database system is a tool that allows users to define, create, maintain, and control access to a collection of logically related data and description of these data, designed to meet the information needs of an organization.

Prototyping

Advantage: enables testing and understanding of the system in advance before final implementation of solution, while requiring less time for research.

Disadvantage: Training and Development cost consumes resources.

Research and site visit

Advantage : better time management if the problem has been researched upon before.

Disadvantage: appropriate permission is often needed before using research materials.

Questionnaires

Advantage: This technique is not expensive, and responses can be calculated and analysed quickly.

Disadvantage: There may be Incomplete answers received from users and body language of user cannot be observed.

Interviews

Advantage: The body language of interviewees is been perceived.

 Disadvantage: Interviewing is time consuming and costly.

3 0

3 years ago