HISTORY OF COMPUTER: BASIC COMPUTING PERIODS AND GENERATION OF COMPUTERS Flashcards
a device that accepts information (in the form of digitalized data) and manipulates it for some result based on a program, software, or sequence of instructions on how the data is to be processed.
Computer
Four kinds of computer:
- SUPERCOMPUTERS
- MAINFRAME COMPUTERS
- MINICOMPUTERS
- MICROCOMPUTERS
any of a class of extremely powerful computers. The tem is commonly applied to the fastest high-performance systems avallable at any given dime.
Supercomuters
Is a computer used primarily by large organizations for critical appications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing
Mainframe computers
A mainframe computer informally called a mainframe or?
Big iron
computer that was smaller, less expensive, and less powerful than a mainframe or supercomputer but more expensive and more powerful than a personal computer.
Minicomputers
a complete computer on a small scale, designed for use by one person at a time.
Microcomputers
microcomputer is now primarily called a?
Personal computer
Two Classification of Microcomputers:
- Personal computers
- Workstations
Is a computer designed for individual use. It is typically used for tasks such as word processing, internet browsing, email, multimedla playback, and gaming.
Personal computer
a special computer designed for technical or scientific applications. Intended primarily to be used by a single user, they are commonly connected to a local area network and run multi-user operating systems.
Workstations
is a collection of code that drives a computer to perform a related group of tasks,
Software
There are two types of software:
- System Software
- Application Software
input is whatever Is put in (‘input” to a computer system. Input can be nearly any kind of data - letters numbers, symbols, colors, temperatures, sounds, or whatever raw material needs processing
Input operations
the set of activities and techniques used to manage and optimize the production of goods and services in an organization.
Processing operations
a mechanism that enables a computer to retain data, either temporarily or permanently.
Storage operations
Two types of storage operations:
Primary Storage and Secondary Storage
a key component of a computer system that enables it to function.
Primary storage
is non-volatile and is used to store data and programs for later retrieval.
Secondary storage
Secondary storage, sometimes called?
auxiliary storage
refer to data signals sent by the output device in response to the data input.
Output operations
Output has two types:
Softcopy and Hardcopy.
an electronic copy (or e-copy) of some type of data, such as a file viewed on a computer’s display, one that doesn’t exist in physical form or on paper, but is Instead or transmitted as an email attachment.
Soft copy
printed on the paper and sometimes it is referred as permanent copy.
Hard copy
any processes that allow you to communicate which feature a computer or computer program.
Communication operations
There are five basic operations of a computer:
- Input operations
- Processing operations
- Storage operations
- Output operations
- Communication operations
The first use of the word “computer” was recorded in?
1613
was an ancient memory aid device to record and document numbers, quantities, or even messages.
Tally sticks
a mathematical device used to aid an individual in performing mathematical calculations.
Abacus
The abacus was invented in? And what b.c.?
Babylonia in 2400 B.C.
are numbered rods hich can be used to perform multiplication of any number by a 2 - 9
Napier’s bone
NAPIER’S BONE Also known as
Napier’s rod