Please don't act like this is entirely original and that cheetah has somehow made an error. Look at your text vs the source text, even down to the punctuation

Your paragraph-
were often enormous, taking up entire rooms. They were very expensive to operate and in addition to using a great deal of electricity, the vacuum tubes generated a great deal of heat causing many problems in temperature regulation and climate control, the tubes also burnt out frequently, which was often the cause of malfunctions.

Source-
were often enormous, taking up entire rooms. They were very expensive to operate and in addition to using a great deal of electricity, the first computers generated a lot of heat, which was often the cause of malfunctions.

Yours-
First generation computers relied on machine language, the lowest-level programming language understood by computers, to perform operations, and they could only solve one problem at a time. punched cards and paper tape were used for Input , and output was displayed on printouts.

Source-
First generation computers relied on machine language, the lowest-level programming language understood by computers, to perform operations, and they could only solve one problem at a time, and it could take days or weeks to set-up a new problem. Input was based on punched cards and paper tape, and output was displayed on printouts.