The first personal computers

melguy wrote:The first personal computers had severe hardware and software limitations similar to that of a modern wristwatch and so were unable to perform the complex operations necessary for today's processor-intensive applications.

The first personal computers had severe hardware and software limitations similar to that of a modern wristwatch
The first personal computers had severe hardware and software limitations similar to a modern wristwatch's
The severe hardware and software limitations of the first personal computers were similar to those of a modern wristwatch
The first personal computers' severe hardware and software limitations were similar to those of a modern wristwatch
The severe hardware and software limitations of the first personal computers were similar to that of a modern wristwatch

Please help with the problem. I am confused between A & B. Thanks

melguy wrote:The first personal computers had severe hardware and software limitations similar to that of a modern wristwatch and so were unable to perform the complex operations necessary for today's processor-intensive applications.

The first personal computers had severe hardware and software limitations similar to that of a modern wristwatch
The first personal computers had severe hardware and software limitations similar to a modern wristwatch's
The severe hardware and software limitations of the first personal computers were similar to those of a modern wristwatch
The first personal computers' severe hardware and software limitations were similar to those of a modern wristwatch
The severe hardware and software limitations of the first personal computers were similar to that of a modern wristwatch

Please help with the problem. I am confused between A & B. Thanks

melguy wrote:The first personal computers had severe hardware and software limitations similar to that of a modern wristwatch and so were unable to perform the complex operations necessary for today's processor-intensive applications.

The first personal computers had severe hardware and software limitations similar to that of a modern wristwatch
The first personal computers had severe hardware and software limitations similar to a modern wristwatch's
The severe hardware and software limitations of the first personal computers were similar to those of a modern wristwatch
The first personal computers' severe hardware and software limitations were similar to those of a modern wristwatch
The severe hardware and software limitations of the first personal computers were similar to that of a modern wristwatch

Please help with the problem. I am confused between A & B. Thanks

'manpreet singh wrote:

melguy wrote:The first personal computers had severe hardware and software limitations similar to that of a modern wristwatch and so were unable to perform the complex operations necessary for today's processor-intensive applications.

The first personal computers had severe hardware and software limitations similar to that of a modern wristwatch
The first personal computers had severe hardware and software limitations similar to a modern wristwatch's
The severe hardware and software limitations of the first personal computers were similar to those of a modern wristwatch
The first personal computers' severe hardware and software limitations were similar to those of a modern wristwatch
The severe hardware and software limitations of the first personal computers were similar to that of a modern wristwatch

Please help with the problem. I am confused between A & B. Thanks

"that of" is wrong A and E eliminated, and use of "had" is unnecessary here.
We should prefer simple tense.

C is the best answer here as the limitations are compared for first personel computers and modern computers so they should be close to each other.

faraz_jeddah wrote: Since limitations is plural, you should not use "that of". The correct form would be 'those of'

melguy wrote:

faraz_jeddah wrote: Since limitations is plural, you should not use "that of". The correct form would be 'those of'

Thanks Faraz. Just out of curiosity are there any other errors apart from that (so that I can take note for the exam day).

OA is B. I got confused as i saw modern wristwatch's in B

faraz_jeddah wrote:

melguy wrote:

faraz_jeddah wrote: Since limitations is plural, you should not use "that of". The correct form would be 'those of'

Thanks Faraz. Just out of curiosity are there any other errors apart from that (so that I can take note for the exam day).

OA is B. I got confused as i saw modern wristwatch's in B

I think that is the only error in A but please note that the error is a MAJOR one.

Some SC questions will have less major mistakes - the use of being, passive voice etc - which could be ignored if other choices have multiple/major errors. These are the traps that you should see in 600-700 level questions.