How is data represented in a computer?

Topic HARDWARE

What is the difference between data and information in computer terms?

Data is raw material for data processing. Data relates to fact, event and transactions. Data refers to unprocessed information.

Information is data that has been processed in such a way as to be meaningful to the person who receives it. it is any thing that is communicated.

What is the difference between software and hardware?

Hardware is the physical componentry of a computer system. Memory chips, mice, monitors, and keyboards are all hardware.

Software is the information stored on the computer, so programs and data are considered to be software. Basically, if you can email it to someone, it's software.

How is data represented in a computer?

Computers work with a binary number system that consists of only two digits - zero and one. Inside the computer binary number is represented by an electrical pulse. One means a pulse of electricity and zero means no pulse. All the data entered into computers is first converted into the binary number system. One digit in binary number system is called bit and combination of eight bits is called byte. A byte is the basic unit that is used to represent the alphabetic, numeric and alphanumeric data.

Data is the combination of characters, numbers and symbols collected for a specific purpose. Data is divided into three types; alphabetic data, numeric data and alphanumeric data. Numeric data consist of ten digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, two signs + and - and decimal point . There are different types of number system that are used to represent numeric data. These number systems are decimal number system, binary number system, octal number system and hexadecimal number system.

Alphabetic data is used to represent 26 alphabetic. It consist of capital letters from A to Z, small letters from a to z and blank space. Alphabetic data is also called nonnumerical data. Alphanumeric data used to represent alphabetic data, numeric data, special character and symbols.
Data is represented inside a computer as a series of on and off pulses. Humans think of those pulses in terms of a binary-based numbering system.