<span>Financial transactions were one of the first purposes of computers. This is where "ticker tapes" came from; early computers were used to keep track of how stocks were performing. Computers in early days used large mainframe systems and punch cards to keep track of this type of data.</span>
Answer:
a. backdoor
backdoor (also called a trapdoor) is a programming routine built into a system by its designer or programmer. It enables the designer or programmer to bypass system security and sneak back into the system later to access programs or files.
Answer:b)convergence.
Explanation: Convergence has the basic meaning as when two or more unit of anything meet to converge or join. In the research , the different types of the tools are brought togather and skills and compare them.The measurement is done through the tools which has the already defined parameters.
Thus this concept is the example of the convergence because the tools are being converged and compared.so, the correct answer is option (B) and other option are incorrect because they have the technique of the contrasting and separation and reading respectively.
Either A or B. I would go with A but It can actually be B
Answer: Scientist
Explanation: Scientists use technology to record data, as well as using technology to study different things, for example scientists use computers to track DNA.
