งานสัปดาห์ที่ 2

งานสัปดาห์ที่ 2

Dot-matrix printers

Main article: Dot matrix printer
In the general sense many printers rely on a matrix of pixels, or dots, that together form the larger image. However, the term dot matrix printer is specifically used for impact printers that use a matrix of small pins to create precise dots. The advantage of dot-matrix over other impact printers is that they can produce graphical images in addition to text; however the text is generally of poorer quality than impact printers that use letterforms (type).

Dot-matrix printers can be broadly divided into two major classes:
- Ballistic wire printers (discussed in the dot matrix printers article)
- Stored energy printers
Dot matrix printers can either be character-based or line-based (that is, a single horizontal series of pixels across the page), referring to the configuration of the print head.
At one time, dot matrix printers were one of the more common types of printers used for general use - such as for home and small office use. Such printers would have either 9 or 24 pins on the print head. 24-pin print heads were able to print at a higher quality. Once the price of inkjet printers dropped to the point where they were competitive with dot matrix printers, dot matrix printers began to fall out of favor for general use.
Some dot matrix printers, such as the NEC P6300, can be upgraded to print in color. This is achieved through the use of a four-color ribbon mounted on a mechanism (provided in an upgrade kit that replaces the standard black ribbon mechanism after installation) that raises and lowers the ribbons as needed. Color graphics are generally printed in four passes at standard resolution, thus slowing down printing considerably. As a result, color graphics can take up to four times longer to print than standard monochrome graphics, or up to 8-16 times as long at high resolution mode.
Dot matrix printers are still commonly used in low-cost, low-quality applications like cash registers, or in demanding, very high volume applications like invoice printing. The fact that they use an impact printing method allows them to be used to print multi-part documents using carbonless copy paper (like sales invoices and credit card receipts), whereas other printing methods are unusable with paper of this type. Dot-matrix printers are now (as of 2005) rapidly being superseded even as receipt printers

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Rosetta Stone งานสัปดาห์ที่ 1

งานสัปดาห์ที่ 1

Level 1 Unit 1 exercise 01 :Introductory Nouns and prepositions
1. a girl
2. a boy
3. a dog
4. a cat
5. a man
6. a woman
7. a car
8. an airplane
9. a ball
10. a horse
11. an elephant
12. a cat and a car
13. a girl and a woman
14. a man and a woman
15. a man and a boy
16. a boy and an airplane
17. a girl on a horse
18. a ball on a boy
19. a boy on an airplane
20. a boy on an airplane
21. a boy in a car
Level 1 Unit 1 exercise 02: Verbs: Present Progressive
1. The girl is jumping
2. The horse is running
3. The woman is running
4. The girls are running
5. The women is dancing
6. The woman is reading
7. The boy is falling
8. The man is jumping
9. The bull is running
Level 1 Unit 1 exercise 03: Descriptive adjecttives.
1. The car is white.
2. The airplane is yellow.
3. The car is blue.
4. The pink car is old.
5. an old house.
6. a new house.
7. a young woman.
8. The girl has black hair.
9. The man has long hair.
Level1 unit 1Lesson10 who what where whichWho is dancing?
1. The man is dancing.(ผู้ที่กำลังเต้นรำคือใคร?ผู้ชายกำลังการเต้นรำ)
2. What food is this? These are strawberries.(นี้อาหารอะไร?เหล่านี้ต้นสตรอเบอรี่)
3. Where is the man? The man is on the old house.(ผู้ชายอยู่ที่ไหน? ผู้ชายเป็นบนสภาเก่าแก่)
4. Which car is blue?(รถยนต์คันไหนสีฟ้า)
Level 1 Unit 2 Lesson 01 More Verbs:Present Progressive
1. The man is throrwing the ball.(ผู้ชายกำลังออกไปจากลูกบอล)
2. The boy in white is kicking the ball.(เด็กชายผิวขาวกำลังเตะลูกฟุตบอล)
3. The woman is running.(ผู้หญิงกำลังเดิน)
4. The girl is writing.(เด็กผู้หญิงกำลังเขียน)
5. The boy is smiling.(เด็กผู้ชายกำลังยิ้ม)
6. bird is flying.(นกกำลังบิน)
Level 1 Unit 2 Lesson 02 People and Animals:
1. is a woman.(เธอเป็นผู้หญิง)
2. children(เด็กสองคน)
3. A dog is an animal.(สุนัขก็คือสัตว์)
4. A fish is not a person. A fish is an animal.(ปลาไม่ใช่ตัวเองแต่ปลาเป็นสัตว์)
5. One animal(สัตว์ตัวเดียว)
6. An animal that is not an elephant(สัตว์ที่ไม่ใช่ช้าง)
Level 1 Unit 2 Lesson 03 Big and Small: Nouns, Descriptive
1. A man with a big tool(ผู้ชายขี้คุยกับสิ่งที่ใช้ในงานต่าง ๆ)
2. A small umbrella(ร่มเล็ก)
3. A small person(ตัวเองเล็ก)A big boat(เรือใหญ่)
4. A big wheel and a small wheel(การเคลื่อนเป็นวงกลมเล็กและใหญ่)
Level 1 Unit 2 Lesson 04 Shapes and Colors:Descriptive
1. A big square(แผ่นกระดานเล่นเกมซึ่งเป็นรูปสี่เหลี่ยมจัตุรัส)
2. The blue circle is bigger than the red circle.(วงกลมสีฟ้าใหญ่กว่าวงกลมสีแดง)
3. The biggest circle is black.(วงกลมที่ใหญ่ที่สุดคือวงกลมสีดำ)
4. A yellow rectangle(สีเหลืองมีลักษณะเป็นสี่เหลียมผืนผ้า)
5. A small rectangle(สีเหลี่ยมผืนผ้ามีลักษณะเล็ก)
6. long rectangle(สี่เหลี่ยมผืนผ้ามีลักษณะยาว)
7. green rectangle is shorter than the yellow rectangle(สี่เหลี่ยมผืนผ้าสีเขียวสั้นกว่าแต่สี่เหลี่ยมผืนผ้าเป็นสีเหลืองคล้ายเนยหรือมะนาวสุก)
Level 1 Unit 2 Lesson 05 Left and Right: His and Her
1. Two yellow balls are in her left hand.(สองลูกบอลเป็นสีเหลืองคล้ายเนยหรือมะนาวสุกอยู่ในมือซ้ายเธอ)
2. The girl has something in her right hand.(เด็กผู้หญิงมีบางสิ่งอยู่ในมือขวาเธอ)
3. The microphone is in the singer is left hand.(เครื่องขยายเสียงอยู่ในมือซ้ายของนักร้อง)
4. No left turn(ไม่กลับ)
5. This window is square.(หน้าต่างกระจกด้านหน้าของร้านสำหรับโชว์สินค้านี้เป็นแผ่นกระดานเล่นเกมซึ่งเป็นรูปสี่เหลี่ยมจัตุรัส)
6. This sign is round.(สัญลักษณ์นี้มาถึงบ้าน)