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# As the etched lines on computer memory chips have become thinner and

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Re: As the etched lines on computer memory chips have become [#permalink]

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21 Dec 2010, 17:55
daagh wrote:
Let us sort out a few things first.

What is the subject of the main clause “both the power of the chips and the electronic devices they drive has vastly increased? Is it ‘both the power’ or ‘the power of both”? This is essential to fix the SV number agreement, the one that is being tested here.

It is wrong to say ‘both the power of the chips and the electronic devices’, because if we are meaning to use power in the plural sense, then it should be ‘both the powers’. On the contrary, the power is meant to be used in singular here, byusibg the term ‘the power of both chips and the devices’ .
The clue therefore is that the right choice will use as subject ‘the power of both’ and as verb ‘has’
Going by this norm, B alone is the winner all the way.

In fact I did not understand the subject

subject ---> singular------> verb HAS.........not HAVE........thanks
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Re: As the etched lines on computer memory chips have become thinner and [#permalink]

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21 Mar 2011, 06:53
I am still confused.

As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex,, the power of both the chips and the electronic devices they drive has ...

Here we got a parallelism indicator and in between highlighted red portion. First part is a clause but the second one is phrase.. Should these two not be parallel?
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Re: As the etched lines on computer memory chips have become thinner and [#permalink]

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03 Jun 2011, 23:15
As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have vastly increased.
(A) the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have - ruled out - it should be the power of both the chips and the electronic devices- you are comparing 2 nouns(B) the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has - correct
(C) the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has - same reason as A
(D) their circuits are more complex, the power of both the chips and the electronic devices they drive have - the power of... should be 'has' and not 'have'
(E) their circuits more complex, both the power of the chips and the electronic devices they drive have - same as A
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Re: As the etched lines on computer memory chips have become thinner and [#permalink]

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05 Jun 2011, 16:18
Onell wrote:
I am still confused.

As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex,, the power of both the chips and the electronic devices they drive has ...

Here we got a parallelism indicator and in between highlighted red portion. First part is a clause but the second one is phrase.. Should these two not be parallel?

I had a same doubt. That was the reason I picked D. Only B and D is close to right, because the position of 'both' to make it parallel and clear. All the others have a misplace 'both'. Any comments?
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Re: As the etched lines on computer memory chips have become thinner and [#permalink]

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10 Nov 2011, 00:12
I was torn between A and B. Went for A.
After reading through I see "the power of" has to come before "both"
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Re: As the etched lines on computer memory chips have become [#permalink]

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23 Apr 2012, 02:10
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monir6000 wrote:
As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have vastly increased.
(A) the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have
(B) the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has
(C) the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has
(D) their circuits are more complex, the power of both the chips and the electronic devices they drive have
(E) their circuits more complex, both the power of the chips and the electronic devices they drive have

B

(A) the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have - we talk about power of both chips and el devices
(B) the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has - CORRECT, subj/verb agreement
(C) the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has - the sentence already has a verb, no sense to "are". + the same as in A
(D) their circuits are more complex, the power of both the chips and the electronic devices they drive have - subj/verb agreement, "their" refers to the etched lines or chips?
(E) their circuits more complex, both the power of the chips and the electronic devices they drive have - "their" refers to the etched lines or chips?
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Re: As the etched lines on computer memory chips have become [#permalink]

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25 Apr 2012, 19:04
B.. nice one, parallelism and subject verb agreement.
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Re: As the etched lines on computer memory chips have become thinner and [#permalink]

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18 Jan 2013, 06:59
As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have vastly increased. (GMAT Prep)
1. the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have
usage of “ both the power of” is awkward it should be “the power of both X and Y”
2. the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has
correct usage of “both x and y” and the word “they” correctly refers to compound subject “the chips and the electronic devices”
3. the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has - usage of “both the power of” is wrong
4. their circuits are more complex, the power of both the chips and the electronic devices they drive have
“their” ambiguity
5. their circuits more complex, both the power of the chips and the electronic devices they drive have
“their” ambiguity
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Re: As the etched lines on computer memory chips have become thinner and [#permalink]

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02 Mar 2013, 19:33
bmwhype2 wrote:
139. As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have vastly increased.
(A) the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have
(B) the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has
(C) the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has
(D) their circuits are more complex, the power of both the chips and the electronic devices they drive have
(E) their circuits more complex, both the power of the chips and the electronic devices they drive have

I choose B right away.
Had option E been like this -> the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have -> I would have been really confused between B and E.
A general issue with majority of the choices is "both the power of the chips and the electronic devices they drive have vastly increased".
If we scrutinize this fragment, both X(the power of something) and Y(something else) are still parallel and they agree with have. .
So whats wrong with my customized option E?the electronic devices they drive have vastly increased does not make sense.
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28 Mar 2013, 19:56
B it is :the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has

u cannot use "their circuit" as it wud be misleading !! so D and E are out !
B is parallel
C even if u forget logical meaning then C has subject verb disagreement
A is nonsensical in meaning
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28 Mar 2013, 23:12
As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, both
the power of the chips and the electronic devices they drive have
vastly increased.

A. the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have
This changes the meaning: "the power of both the chips and the electronic devices" is diffrent from "both the power of the chips and the electronic devices". In A it seems that the power of the chips has increased and the electronic devices(not their power) has increased.
B. the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has
CORRECT
C. the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has
"are" doesn't maintain the parallelism "lines thinner" and "circuits are more".
D. their circuits are more complex, the power of both the chips and the electronic devices they drive have
"are" doesn't maintain the parallelism "lines thinner" and "circuits are more".
E. their circuits more complex, both the power of the chips and the electronic devices they drive have
Same as A.
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Re: As the etched lines on computer memory chips have become thinner and [#permalink]

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14 Jul 2014, 07:13
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SidKaria wrote:
As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have vastly increased.(GMAT Prep)

1) the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have
2) the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has
3) the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has
4) their circuits are more complex, the power of both the chips and the electronic devices they drive have
5) their circuits more complex, both the power of the chips and the electronic devices they drive have

intended meaning-as the etched line on the comp memory chips have become thinner and the chip's circuits more complex,both the power of chips and the power of the electronic devices the chips drive have vastly increased.

1) the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have.
incorrect- it says that the power of chips and electronic devices they drive has increased.(if this would have been the intended meaning then there was no need for using "both") can i reject the anser choice on this basis ?
DOUBT- dont know whether the entities are parallel?? i think they are."the power of the chips"- noun +noun modifier." the electronic devices they drive"- noun + noun modifier.

2) the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has-
correct: both x and y.where, x and y are parallel. the chips- noun. electonic devices they drive. noun+modifier.(if one entity has a modifier and the other doesn't they still can be parallel)

In the above sentences it seems that "As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex" is parallel. and in the 2nd part of the sentence "have become"is implied. how can we assume that.And if that is not the case then 1st part is a clause and 2nd part is a phrase(no verb). please help .

3)the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has-
incorrect- repeats the error in A(intended meaning) uses singluar has for plural subject(x and y )

4)their circuits are more complex, the power of both the chips and the electronic devices they drive have
incorrect- the power is singular while have is plural. their is ambiguous.

Doubt-As the etched lines on computer memory chips have become thinner and their circuits are more complex. is this parallel ?? both are clauses, but have different tenses.
i think its parallel but incorrect because "their circuits are more complex" is incomplete. more complex than what ?? if we say that their circuits have become more complex it makes sense because its implied that we are comparing the present chip's circuits with the past chip's circuits.

5)their circuits more complex, both the power of the chips and the electronic devices they drive have-
incorrect- their is ambiguous. repeats the error in A(intended meaning)

doubt- we come to know about the intended meaning of the sentence from the first option, in this case i think that the 2nd optio9n is more logical but isnt there a possibility that the sentence is correct as it is.

1)As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have vastly increased.

meaning- because of the changes on the computer memory chips, the power of the chips and the number of electronic devices the chips drive have increased. (so beacuse of the changes more electronic devices can be driven using the chips.

thank you.

Hi Siddhartha,
Thank you for posting your query here.

Let’s apply the e-GMAT 3 step process to the given sentence:

SENTENCE STRUCTURE
• As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, (Clause-1)
• both the power of the chips and the electronic devices (Clause-2)
o they drive (Clause-3)
o have vastly increased. (Clause-2 Contd.)

• This sentence tells us about two related events. It says as X has happened, Y has happened. Let’s see what are these two events:
• X: The etched lines on computer memory chips have become thinner and the chips’ circuits (have become) more complex.
• Y: Both the power of the chips and the electronic devices have increased.

Error Analysis

From the meaning analysis, we can logically say that the two changes in the memory chips have resulted in increase in the power of the chips.
However, it is not logical to say that these changes have led to increase in the devices they drive. The changes in etched lines and the chips’ circuits cannot increase the number of devices. Increase in the number of devices these chips drive depend on many other factors. Hence, despite being GRAMMATICALLY correct, this choice stands LOGICALLY incorrect.

PROCESS OF ELIMINATION

OPTION A: Incorrect
For the reasons stated above.

The expression “both X and Y” does not have any error. It is correctly used. However, the error lies in the illogical meaning.
Yes, you are correct. The entities are parallel.

OPTION B: Correct
This choice is grammatically as well as logically correct. The changes in the memory chips have resulted in increase in power of two things:
1) The chips,
2) And the devices they drive.

In this sentence, we have ellipsis at play.
• As the etched lines on computer memory chips have become thinner and the chips’ circuits (have become) more complex, the power of both the chips and the electronic devices they drive has vastly increased.
Option B can be written in the above mentioned way as well. Since the verb "have become" already exists in the sentence, there is no need of repeating the same verb again. This is the usage and function of ellipsis. We do have a clause after "and" as well. It is just not written in the clause form because of ellipsis. Please refer to the following article to learn more about ellipsis:

how-far-ellipsis-is-permissible-in-comparison-148973.html

OPTION C: Incorrect
1. Use of “are” is incorrect. The effect of the changes can still be felt in the present. So, the verb used should be in the present perfect tense (have become).
2. Repeats the logical parallelism error (illogical meaning error) as in choice A.
3. Singular verb “has vastly increased” does not agree in number with its plural subject.
4. When we say “the chips’ circuits are more complex”, we need to mention more complex than what. So, the comparison is incomplete. However, if we say “the chips’ circuits have become more complex”, it means that we are comparing the circuits to their earlier versions. (You are absolutely correct here.)

OPTION D: Incorrect
1. Same verb tense and comparison error as in choice C.
2. Plural verb “have” does not agree in number with its singular subject “the power”.

OPTION E: Incorrect
1. Repeats the logical parallelism error (illogical meaning error) as in choice A.

I won’t say that “their” is ambiguous here. There are only two possible plural antecedents: lines and chips. However, it is illogical to say that the lines’ circuits have become more complex, since lines do not have circuits.

Hope this helps!
Deepak
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Re: As the etched lines on computer memory chips [#permalink]

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27 Nov 2014, 20:22
souvik101990 wrote:
As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have vastly increased.

A. the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have
B. the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has
C. the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has
D. their circuits are more complex, the power of both the chips and the electronic devices they drive have
E. their circuits more complex, both the power of the chips and the electronic devices they drive have

"Their" in Options D and E create ambiguity.
In A,B and C, "The chips circuit" clears ambiguity.

In option C "are more" is not required.

Between A and B, "The power...Both....and... has" is correct.
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Re: As the etched lines on computer memory chips [#permalink]

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29 Nov 2014, 20:01
I believe the original meaning is that the power of the chips and the e-devices have both increased. So, eliminate all choices except for B and D. Between these two, D's part about the chips becoming more complex is awkward and doesn't convey the right meaning. So, choose B.
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Re: As the etched lines on computer memory chips have become thinner and [#permalink]

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06 Sep 2015, 20:20
IMO - B

As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have vastly increased.

A) the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have -- Incorrect (electronic devices vastly increased - changes the intent of the sentence.)
(B) the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has -- Correct
(C) the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has -- Incorrect Same issue as 'A'
(D) their circuits are more complex, the power of both the chips and the electronic devices they drive have -- Incorrect - usage of 'are' not parallel. S-V error for 'Power' and 'Have'
(E) their circuits more complex, both the power of the chips and the electronic devices they drive have -- Incorrect Same issue as 'A'
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Re: As the etched lines on computer memory chips [#permalink]

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17 Aug 2016, 06:51
their circuits more complex, both the power of the chips and the electronic devices they drive have

Split is between 1. chips' vs their 2. have vs has

their correctly refers to chips and have refers to plural idiom both x and y.

I choose E
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Re: As the etched lines on computer memory chips have become [#permalink]

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17 Aug 2016, 19:00
monir6000 wrote:
As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have vastly increased.
(A) the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have
(B) the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has
(C) the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has
(D) their circuits are more complex, the power of both the chips and the electronic devices they drive have
(E) their circuits more complex, both the power of the chips and the electronic devices they drive have

both should be used as "both A and B" like strength of "both lion and tiger". So A, C and E are out.
In D the pronoun their refers to etched lines or chips ? not clear, so out.

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Re: As the etched lines on computer memory chips [#permalink]

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20 Aug 2016, 05:03
deepthit wrote:
their circuits more complex, both the power of the chips and the electronic devices they drive have

Split is between 1. chips' vs their 2. have vs has

their correctly refers to chips and have refers to plural idiom both x and y.

I choose E

''their'' could refer to either the etched lines or the computer chip. So its not clear. Hence D and E are 100% Out.

As per the Idiom Both X and Y, X and Y must be parallel.

In A and C, we have X = the power of the chips and Y = the electronic devices ; We cannot have Power of something parallel to any device. hence, incorrect.

Only option left out is B.
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Re: As the etched lines on computer memory chips have become thinner and [#permalink]

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14 Dec 2016, 04:53
As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have vastly increased.

(A) the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have
(B) the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has
(C) the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has
(D) their circuits are more complex, the power of both the chips and the electronic devices they drive have
(E) their circuits more complex, both the power of the chips and the electronic devices they drive have

Clause 1: As the etched lines on computer memory chips have become thinner
Clause 2: and the chips’ circuits (have become) more complex
Clause 3: BOTH the power of the chips AND the electronic devices they drive have vastly increased.
On the basis of clause 2, we can easily eliminate C, D, and E.

Now left with choices A and B.
The only difference between the two choices is the positioning of the word ‘power’.
Choice A: the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have
Let’s just focus on ‘both the…………’
The verb ‘have’ is plural and is used for power of the chips and the electronics devices.
The marker ‘both…..and….’ shows parallelism and the words/phrases/clauses……must be LOGICALLY parallel.
Here power of the chips is not parallel with the electronic devices.
Hence this choice is INCORRECT.

Choice B.
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Re: As the etched lines on computer memory chips have become thinner and [#permalink]

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23 Mar 2017, 05:49
bmwhype2 wrote:
139. As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have vastly increased.
(A) the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have
(B) the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has
(C) the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has
(D) their circuits are more complex, the power of both the chips and the electronic devices they drive have
(E) their circuits more complex, both the power of the chips and the electronic devices they drive have

The power is singular that requires singular subject...Both refers chips and ED.thus B is correct choice.
Re: As the etched lines on computer memory chips have become thinner and   [#permalink] 23 Mar 2017, 05:49

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