Computer System Servicing

Computers work at an incredible speed. A powerful computer is capable of performing about 3-4 million simple instructions per second.

• Speed

• Accuracy

• Diligence

• Versatility

In addition to being fast, computers are also accurate. Errors that may occur can almost always be attributed to human error (inaccurate data, poorly designed system or faulty instructions/programs written by the programmer)

• Accuracy

• Speed

• Diligence

• Versatility

It is a programmable machine designed to perform arithmetic and logical operations automatically and sequentially on the input given by the user and gives the desired output after processing.

• Computer

• Cellphone

• Machine

• Supercomputer

Hardware is a physical part of a computer that cause processing of data.

• True

• False

One of the characteristics of computers is it is accurate. However, errors that may occur can almost always be attributed to __________?

• Human error

• Computer error

• Hardware error

• System error

Today’s computers can store large volumes of data. A piece of information once recorded (or stored) in the computer, can never be forgotten and can be retrieved almost instantaneously. What characteristics of computer does the preceding sentences talk about?

• Storage capacity

• Diligence

• Versatility

• Speed

This unit is used for entering data and programs into the computer system by the user for processing.

• Input unit

• Storage unit

• Output unit

• Processing

It is a programmable machine designed to perform arithmetic and logical operations.

It is part of a CPU from where it controls all of the operations like input, processing and output are performed by control unit. It takes care of step by step processing of all operations inside the computer.

• Control unit

• Arithmetic logic unit

• Processing

• Storage unit

It is a computer that serves up information to other computers on a network.

• Server

• Network

• Supercomputer

• Storage room