Understanding The Term Data Processing IT Essay

Data handling is any computer process that changes data into information or knowledge. The handling is usually assumed to be programmed and running on a computer. Because data are most readily useful when well-presented and also informative, data-processing systems are often known as information systems to highlight their practicality. Nevertheless, both terms are roughly synonymous, undertaking similar conversions; data-processing systems typically manipulate natural data into information.

Information : Information is data that has been prepared for use.

Relationship between data handling and information in a pc system

When information is moved into into and stored in your computer, it is generally referred to as data. After finalizing (such as formatting and printing), productivity data can again be regarded as information. Data processing is the actual process of converting the info into data and vice versa in your computer system.

2 Distinguish between data and information

data is what's inserted into and stored in a pc following the data has been prepared it is called information.

3 why are digital computer useful in data processing

A digital computer is the main mechanism used for transforming data in data processing.

4. Describe at length the physical security, the public environment under that your computer does best.

Computer perform best in an awesome and clean environment as mud and heat affect the performance of your computer system

SECTION B (COMPUTER PROGRAM)

I. Distinguish between low level language and high level language.

The main distinction of high-level languages and low-level languages is the fact that high-level languages are easier to read, write, and keep maintaining. In the end, programs written in a high-level words must be translated into machine vocabulary by the compiler or interpreter.

II. Explain the acronyms

COBOL: Acronym for common business oriented words. Developed in the past due 1950s and early on 1960s, . It really is especially popular for business applications that run on large computer systems. COBOL is still the most widely used programming language on the globe.

FORTRAN : Acronym for method translator, . Created by John Backus for IBM in the late 1950s, it is still popular today, particularly for medical applications that require extensive numerical computations.

BASIC: Acronym for Beginner's All-purpose Symbolic Education Code. BASIC is one of the initial and simplest high-level encoding languages.

Despite its straightforwardness, BASIC is utilized for a wide variety of business applications. There can be an ANSI standard for the BASIC vocabulary, but most versions of BASIC include many proprietary extensions. Microsoft's popular Visual Basic, for example, brings many object-oriented features to the standard BASIC.

ALGOL: ALGOL (brief for ALGOrithmic Terminology)[1] the de facto way algorithms were detailed in text-books and academic works for nearly another 30 years.

These languages are best suited for text founded data control.

III Talk about and clarify three special goal high level terminology.

1 Ruby : is a vibrant, reflective, general goal object-oriented programming language.

Ruby supports multiple development paradigms (including useful, object oriented and imperative), and features a vibrant type system and computerized storage management.

2 Perl is a strong programming language created by Larry Wall and first released in 1987. Perl borrows features from a variety of other dialects including C, shell scripting (sh), AWK, sed and Lisp. [1] Perl was widely adopted for its strengths in word processing and lack of the arbitrary constraints of several scripting languages at that time. [2]

3 Python is a general-purpose, high-level programming language. Its design school of thought emphasizes programmer output and code readability. [2] Python's center syntax and semantics are minimalist, while the standard catalogue is large and extensive.

Python facilitates multiple coding paradigms (principally functional, object driven and essential), and includes a fully dynamic type system and automated recollection management; it is thus comparable to Perl, Ruby, Plan, and Tcl.

IV. What is a language processor and just why are they necessary

A hardware device designed or used to execute duties, such as producing program code to machine code. Words processors are found in languages such as Fortran and COBOL. They are necessary because they are being used to convert your program code to machine code

V. what's the difference between a compiler and interpreter?

Compiler will translate the source code written in a few kind of program writing language, and then finally translates it into object code or machine vocabulary while

The interpreter translates instructions one at a time, and then executes those instructions immediately. The compiler is itself a computer program written usually in a few implementation words.

SECTION C(DBM)

Define the following

1. Field

A field is an area allocated for a specific item of information. A duty form, for example, contains a number of fields: one for your name, one for your Community Security quantity, one for your income, and so forth. In repository systems, fields will be the smallest items of information you can gain access to. In spreadsheets, fields are called skin cells.

Most areas have certain characteristics associated with them. For instance, some fields are numeric whereas others are textual, some are long, while others are short. Furthermore, every field has a name, called the field name.

2. Record

Records are composed of fields, each of which is made up of one item of information. A set of records takes its file. For example, a personnel record might contain records that contain three domains: a name field, an address field, and a phone number field.

Some programming languages enable you to define a special data composition called a record. Generally, a record is a combo of other data objects. For example, an archive might contain three integers, a floating-point amount, and a figure string.

3. File

A data file is a assortment of data or information which has a name, called the filename. Almost all information stored in your personal computer must be in a file. There are various types of data: documents, text data, program files, index files, and so on. Various kinds of files store different kinds of information. For example, program data store programs, whereas wording files store content material.

4. Bit

Short for binary digit, it is the smallest device of information on a machine. An individual bit can take only one of two beliefs: 0 or 1. More meaningful information is obtained by combining consecutive bits into larger models. For instance, a byte is composed of 8 consecutive parts.

5. Character

A personality is any mark that will require one byte of storage area. This includes all the ASCII and expanded ASCII characters, like the space character the term character is generally reserved for words, numbers, and punctuation.

(ii)

Identify three document organisation method known to you and condition their merit and demerit.

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