Computer System: Characteristics and Applications: 19 MCQs with answers

To calculate

The source states that the word 'Computer' is derived from 'compute', which means 'to calculate'.

An electronic device that performs tasks by executing instructions

A computer is an electronic device that can perform a variety of tasks by executing a given set of instructions.

Speed

This describes speed — a computer works at an amazing speed without making mistakes.

Milliseconds and nanoseconds

The speed of a computer is measured in milliseconds ($10^{-3}$ seconds) or nanoseconds ($10^{-9}$ seconds).

Storage capacity

A computer can store a large amount of data in its memory and retrieve it whenever required, which is its storage capacity.

Dependence on power

A computer is an electronic machine, and its dependence on power makes it costly — this is one of its two stated limitations.

Military

Computers play a vital role in the design and development of high-tech weapons for defense where absolute accuracy is essential.

True

The word 'Computer' is derived from 'compute', which means 'to calculate'.

Online banking

Using online banking, you can check your real-time balance and all the details of past transactions.

Education

In education, computers allow students to study according to their own pace and convenience.

Maintaining fingerprints of criminals

Maintaining fingerprints of criminals belongs to crime detection, not research. The other three are listed research uses.

It never gets tired or bored of repetitive tasks

A computer is more reliable because it never gets tired and bored of repetitive tasks and can operate for long hours with its accuracy intact.

Inaccurate input or faulty hardware

The errors generally occur when the input is inaccurate or the hardware is not functioning properly.

Despite AI, computers cannot fully think and decide like humans

With the advent of AI, computers take decisions to some extent on their own, but compared to human intelligence they still have a long way to go.

Versatility — performing various types of jobs from one machine

Versatility means a computer can perform various types of jobs, such as listening to music while typing in MS Word.

Internet banking

Internet banking allows you to use an ATM or debit card to shop, buy tickets, and pay bills for utility services like electricity, telephone, and post-paid mobiles.

Limited Ability to Think

The team should be aware of the 'Limited Ability to Think' limitation, as computers can only process the data they are given. If the input data is flawed or incomplete, the output will also be inaccurate, impacting the forecasting results.

Enhanced Storage Capacity and Quick Retrieval

The school can expect 'Enhanced Storage Capacity and Quick Retrieval' as primary advantages, allowing them to store vast amounts of student data efficiently and access it swiftly compared to manual records.

Accuracy

The characteristic of 'Accuracy' is critical in military simulations to ensure that the training scenarios are realistic and reliable, allowing pilots to practice under conditions that closely mirror real-life situations without errors that could lead to misjudgments.