← IGCSE Computer Science Paper 1

Advantage of robots: consistent and continuous work

A robot repeats a task with the same accuracy every time and works for long periods without tiredness or breaks, so it raises productivity.

Part of: IGCSE Computer Science 0478 — 6.2 Robotics — Module 23

Understanding Advantage of robots: consistent and continuous work in IGCSE Computer Science Paper 1

What it does: The same program is repeated on every door, so the result is the same each time, which shows consistent work. Robots do not suffer from tiredness, so they can work 24 hours a day if they have power and are maintained. A human may lose concentration on a boring task and make errors. A robot does not, so the results stay consistent. Humans get tired, which can cause mistakes. A robot does not tire, so this is an advantage of robots. Continuous work means the robot keeps going for long periods without needing rest, which raises productivity. Robots follow their program exactly, giving consistent results, so this statement is wrong.

Common mistakes: The robot works all 24 hours, so the total must grow every hour. The line should be made = made + 10. Setting made = 10 throws away the earlier work. The variable is called size, so print(siz) causes a NameError. It should be print(size). The robot makes every part exactly the target size.

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This module's key terms are also in a printable crossword (Modules 642–651) and word search (Modules 632–651).

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Learning

Duo

A factory robot welds 1,000 car doors. Which statement is true?

Welds get less accurate as the day goes onEvery weld is made with the same accuracy

Matches

Robots get tired after 8 hours, so they must stop for a rest break like workers.

↓

Robots do not get tired or lose concentration. They can work for long periods without breaks, apart from maintenance or recharging.

Applying

Meanings

Term

consistent and continuous work

Meaning

A robot repeats a task with the same accuracy every time and works for long periods without tiredness or breaks, so it raises productivity.

Practice

count ← 0

Testing

Gaps

power = ON DO

Check Answer

Spots

2for hour in range(24):

3 made = 10

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Quick Questions

1. A factory robot welds 1,000 car doors. Which statement is true?

A. Every weld is made with the same accuracy ✓

B. Welds get less accurate as the day goes on

A robot repeats a task with the same accuracy every time, so the quality stays the same from the first door to the last.

2. Why can a robot keep working through the night?

A. It does not get tired and needs no breaks ✓

B. It needs to sleep, but only for one hour

Robots do not suffer from tiredness, so they can work 24 hours a day if they have power and are maintained.

3. Which is an advantage of using robots for repetitive work?

A. They do not lose concentration ✓

B. They get bored and make more mistakes

A human may lose concentration on a boring task and make errors. A robot does not, so the results stay consistent.

4. A company wants to make more products each day. How can robots help?

A. They work slowly, so productivity falls

B. They work faster for longer, so productivity rises ✓

Robots can work quickly and continuously, so more products are made in the same time. This raises productivity.

5. A human worker is on a long shift. What is likely to happen to the quality of their work?

A. It will always stay perfect

B. It may drop as they get tired ✓

Humans get tired, which can cause mistakes. A robot does not tire, so this is an advantage of robots.

Match the Pairs

consistent work → A robot repeats a task with the same accuracy every time, so every product has the same quality

continuous work → A robot can run 24 hours a day without tiredness, breaks or loss of concentration

A car factory robot welds every door with the same accuracy, so every car has the same quality → for each door: weld(point1, point2, point3)

A packing robot works all night with no breaks and no loss of concentration, so more items are produced → while power_on: pack(item)

Robots get tired after 8 hours, so they must stop for a rest break like workers. → Robots do not get tired or lose concentration. They can work for long periods without breaks, apart from maintenance or recharging.

A robot welds a little differently each time, so the quality of each product varies. → A robot repeats a task with the same accuracy every time, so the quality does not vary. Variation is a human problem.

Key Term

consistent and continuous work

A robot repeats a task with the same accuracy every time and works for long periods without tiredness or breaks, so it raises productivity.

Fill in the Blanks

1. WHILE power = ON DO weldPanel() ENDWHILE

Hint: Type the keyword that begins a loop which keeps running as long as its condition is true, so the robot works non-stop.

2. FOR i ← 1 TO 1000 paintDoor() NEXT i

Hint: Type the keyword that sets the final count of this loop, so the robot repeats the same task identically each time.

3. robotTired ← FALSE OUTPUT robotTired

Hint: Type the Boolean value that shows the robot never loses concentration or needs a rest.

4. partsPerHour ← 30 total ← partsPerHour * 24 OUTPUT total

Hint: Type the arithmetic operator that multiplies, to work out the parts made by a robot that runs all day.

5. REPEAT checkPart() UNTIL power = OFF

Hint: Type the keyword that ends this post-condition loop and introduces the condition for stopping.

Spot the Error

Question 1

A made = 0

B for hour in range(24):

C made = 10

D print(made)

Line C — The robot works all 24 hours, so the total must grow every hour. The line should be made = made + 10. Setting made = 10 throws away the earlier work.

Question 2

A target = 2.0

B for part in range(50):

C size = target

D print(siz)

Line D — The variable is called size, so print(siz) causes a NameError. It should be print(size). The robot makes every part exactly the target size.

Question 3

A hours = 0

B while hours < 24

C make_part()

D hours = hours + 1

Line B — A while statement must end with a colon. It should be while hours < 24: so the robot keeps making parts for 24 hours.

Question 4

A def weld_part()

B print('Weld at 5 mm')

C for i in range(3):

D weld_part()

Line A — A function definition must end with a colon. It should be def weld_part(): so the robot can repeat the same weld each time.

Question 5

A 60 = parts_per_hour

B hours = 24

C total = parts_per_hour * hours

D print(total)

Line A — The variable name goes on the left of the assignment and the value on the right. It should be parts_per_hour = 60.

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