Capabilities and Limitations of Computer Systems: Speed, Storage

The compilation of these Application of Computers in Accounting Notes makes students exam preparation simpler and organised.

Capabilities of Computer System and Limitations of Computer Systems

The first computer was ENIAC (Electronic Numerical Integrator and Computer). It occupied about 1,800 square feet. Though it was very helpful during those times, it wasn’t very efficient. It weighed almost 50 tons. Computers have evolved a lot since then but just as every coin has two sides i.e, Capabilities and Limitations of Computer Systems. Let us understand them more clearly.

Capabilities of Computer System

Capabilities of a computer system are the qualities of the computer that put it in a positive light and make the user experience more efficient.

Capabilities and Limitations of Computer System

Speed means the duration a computer system requires in fulfilling a task or completing an activity. It is well-known that computers need very little time than humans in completing a task. Generally, humans take into account a second or minute as a unit of time.

Nevertheless, computer systems have such fast operation capacity that the unit of time is in fractions of a second. Today, computers are capable of doing 100 million calculations per second and that is why the industry has developed Million Instructions per Second (MIPS) as the criterion to classify different computers according to speed.

Accuracy means the level of precision with which calculations are made and tasks are performed. One may invest years of his life in detecting errors in computer calculations or updating a wrong record. A large part of mistakes in Computer Based Information systems (CBIS) occurs due to bad programming, erroneous data, and deviation from rules. Humans cause these mistakes.

Errors attributable to hardware are generally distinguished and corrected by the computer system itself. The computers rarely commit errors and do all types of tasks precisely.

Reliability is the quality due to which the user can stay dependable on the computer. Computers systems are well-adjusted to do repetitive tasks. They never get tired, bored, or fatigued. Hence, they are a lot reliable than humans. Still, there can be failures of a computer system due to internal and external reasons.

Any failure of the computer in a highly automated industry is disastrous. Hence, the industry in such situations has a backup facility to take over tasks without losing much of the time.

The adaptability of a computer system means the quality of it to complete different types of tasks: simple as well as complex. Computers are normally versatile unless designed for a specific operation. Overall, a daily purpose computer is used in any area of application: business, industry, scientific, statistical, technological, and so on

A general-purpose computer, when introduced in a company, can replace the jobs of multiple specialists due to its flexibility. A computer system can replace the functions of all these specialists because of being very versatile.

Storage is the ability of the computer to store data in itself for accessing it again in the future. Nowadays, apart from having instantaneous access to data, computers have a huge ability to store data in a little physical space.

A general computer system has the capacity of storing and providing online millions of characters and thousands of pictures. It is obvious from the above discussion that computer capabilities outperform human capabilities. Therefore, a computer, when used rightfully, will tenfold the effectiveness of an organization.

Limitations of Computer Systems

Limitations are the drawbacks of the computer system in which humans outperform them.

Lack of common-sense
This is one of the major limitations of computer systems. No matter how efficient, fast, and reliable computer systems might be but yet do not have any common sense because no full-proof algorithm has been designed to programme logic into them. As computers function based on the stored programme(s), they simply lack common sense.

Zero IQ
Another of the limitations of computer systems is that they have zero Intelligence Quotient (IQ). They are unable to see and think the actions to perform in a particular situation unless that situation is already programmed into them. Computers are programmable to complete each and every task, however small it may be.

Lack of Decision-making
Decision-making is a complicated process involving information, knowledge, intelligence, wisdom, and ability to judge. The computer system does not have the ability to make decisions on their own because they do not possess all the essentials of decision-making.

They can be programmed to take such decisions, which are purely procedure-oriented. If a computer has not been programmed for a particular decision situation, it will not take a decision due to lack of wisdom and evaluation faculties. Human beings, on the other hand, possess this great power of decision-making.


What are the capabilities of a computer system and what makes a computer system reliable?
The capabilities of a computer system are speed, reliability, adaptability, storage, and accuracy. Computers systems are well adjusted to perform repetitive tasks. They never get tired, bored, or fatigued. Hence, they are a lot reliable than humans.