Computer Information Technology Tutorial Topic 20

Choose C. This is to find how many numbers between 10 and 100 are divisible by 15, a total of (90-15) 15+1 equals 6.

First is the CPU processing,,, then the memory, the data, the graphics card, the graphics processing,,, the hard disk, the speed, the decision and the speed of reading and writing, the individual is this order of this point of view.

Monday: 3 bottles of milk, bread with strawberry jam and cheese.

Tuesday: 3 bottles of milk, 3 rolls, 3 cakes, 1 pear.

Wednesday: 3 bottles of yogurt, 3 quiches, 1 large apple.

Thursday: 3 bottles of milk, 3 meat buns, 3 bananas.

Friday: 3 bottles of milk, 3 sandwiches, 3 pancakes, 3 oranges.

Saturday: rice porridge, 3 fried eggs, 3 siu mai, 3 vegetable buns, 3 bottles of yogurt.

Sunday: 3 bottles of milk, 3 ham sausages, 3 breakfast breads, 3 bananas.

Monday: wonton noodles + tomatoes.

Tuesday: barbecued pork bun + milk oatmeal.

Wednesday: Assorted fried rice + seaweed egg drop soup.

Thursday: Shredded pork noodles + whey protein shake.

Friday: Egg greens noodles + canned tuna.

Saturday: bean paste bun + yogurt + orange juice.

Sunday: Preserved egg and lean pork porridge + frozen xiaolongbao + an apple.

1. The directory search engine is to link the collected and sorted information in the form of a classification directory for users to retrieve. Therefore, when users query information, they can search by classification directory layer by layer. For example, Sohu Yahoo.

2. Keyword search (full-text search engine) is a database established by extracting each ** information from the Internet, retrieving relevant records that match the user's query conditions, and then returning the results to the user in a certain order. For example, searching in Google is a keyword search.

3. The meta-search engine submits user queries to multiple search engines at the same time through a unified user interface, returns the results to be deduplicated and merged, and the comprehensive results are returned to the user. You can get multiple search results by entering a single metasearch**. For example, BBMAO

A directory search engine collects information manually or semi-automatically, and after a person reviews the information, a manual summary of the information is formed, and the information is placed in a predetermined classification framework. Most of the information is oriented to **, providing directory browsing services and direct retrieval services.

It's a good school. There is also homework left in the information technology class. But you have to do your own thing.

The answer you gave was right.

Computer technology is the core, communication technology is a little peripheral core, and sensors are even more peripheral core.

Imagine: there are no sensors, only computers + communications, which can belong to modern information technology;

What about no communication, only computers? Although it is a stand-alone version, the PC is also modern and new;

And what if there is no computer, only communication? It was the last century, the traditional **, telegraph, right, thousands of years ago, there was still a beacon of communication, and it was also a communication. Without computers, are these still modern information technologies?

I don't know if I explained it clearly.

Pro: Communication technology is the core technology!