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Computer Full Form
The term "COMMON Operating Machine" (COMPUTER) refers to equipment used mostly for business, education, and research.
- C = Common
- O = Operating
- M = Machine
- P = Particularly
- U = Used
- T = Trade
- E = Education
- R = Research
Arithmetic (addition, subtraction, division, and multiplication) and logical operations are performed using the ALU, or arithmetic logic unit.
- Changes to the order of operations are made in response to information that is stored in the control unit
(CU).

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It is practical for individuals due to its size, capabilities, and affordability. A desktop, laptop, tablet, or palmtop are all examples of personal computers. It is built on a microprocessor platform. Word processing, accountancy, spreadsheets, databases, web browsers, e-mail, gaming, and speciality software are all examples of software applications for personal computers.Attempt Free Mock Tests- Click Here
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What types of computers are there?
The way a computer performs particular activities can be used to classify it. The following are the basic categories:
- Digital Computer
- Analog Computer
- Hybrid Computer
Generations of Computer
First-generation computer :
These computers were large and expensive and required specialized technicians to operate and maintain them. They were primarily used for military and scientific applications, such as calculating artillery firing tables and performing atomic energy calculations. The first generation of computers was characterized by their use of vacuum tubes and their reliance on punched cards for input and output. They were also relatively slow, with processing speeds measured in milliseconds. Despite their limitations, the first generation of computers laid the foundation for the development of modern computers and revolutionized the way we process and store information.
Second-generation of computer
The main characteristics of second-generation computers were:
- Use of transistors: The use of transistors in second-generation computers made them faster, more reliable, and more energy efficient than first-generation computers, which used vacuum tubes.
- Magnetic storage: Second-generation computers used magnetic storage devices such as magnetic disks and tapes to store data. These devices could store large amounts of data and were more reliable than the punched card storage used in first-generation computers.
- Ferrite core memory: Ferrite core memory was used as the main memory in second-generation computers. It was faster and more reliable than the magnetic drums used in first-generation computers.
- Formal languages: Second-generation computers used formal languages such as COBOL and FORTRAN for programming, which made it easier for programmers to write code.
- Time-sharing: Second-generation computers introduced the concept of time-sharing, which allowed multiple users to access the computer at the same time. This made it possible for computer users to work on the same computer simultaneously, increasing productivity.
Third-generation of computer
The third generation covers the years 1964 to 1977.
In its place, transistors were replaced by integrated circuit (IC) chips.
Transistors, registers, and capacitors can all be found in large quantities on a single Integrated Circuit (IC) chip.
IBM-360 and VAX-750 are two examples of third-generation computers.
Fourth-generation of computer
The fourth generation spans the years 1978 through 1990.
VLSI was used in the fourth generation.
VLSI, in its full definition, is an extremely large-scale integration.
VLSI refers to an integrated circuit chip with more than 1000 embedded components.
This generation produced personal computers.
Apple and IBM both offer fourth-generation products as examples.
Fifth-generation of computer
The fifth generation spans the years 1991 to the present.
Uncertain ULSI chips were introduced in the fifth generation.
Ultra Large Scale Integration is the full name for this technology.
New technologies are introduced in the fifth generation, such as machine learning and artificial intelligence (AI).
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Most Important Computer Related full forms
Computer Memory
- KB- Kilobyte (this is the smallest storage unit)
- MB- MegaByte
- GB- GigaByte
- TB- TeraByte
- PB- PentaByte
- EB- EXAByte
- ZB- ZetaByte
Computer Hardware
- BIOS- Basic Input Output System
- CD- Compact Disk
- CPU– Central Processing Unit
- DVD- Digital Video Disk
- FDD- Floppy Disk Drive
- HDD- Hard Disk Drive
- HDMI- High Definition Multimedia Interface
- LCD – Liquid Crystal Display
- LED- Light Emitting Diode
- MMC- Multi-Media Card
- NTFS- New Technology File System
- PDF- Portable Document Format
- Prom- Programmable Read-Only Memory
- RAM– Random Access Memory
- ROM- Read-only Memory
- SMPS- Switch Mode Power Supply
- SSD- Solid State Drive
- UPS- Uninterrupted Power Supply
- USB- Universal Serial Bus
- VDU- Visual Display Unit
- VGA- Video Graphics Array
- Computer Softwares
- ALU- Arithmetic Logic Unit
- DVI- Digital Visual Interface
- OS- Operating System
- VIRUS – Vital Information Resources Under Seige
Computer courses
- ADCA– Advance Diploma in Computer Application
- BCA- Bachelor of Computer Application
- COPA- Computer Operator cum Programming Assistant
- CSE- Computer Science Engineering
- DCA- Diploma in Computer Application
- DCE- Diploma in Computer Engineering
- IT- Information Technology
- MCA- Master of Computer Application
Computer Networking
- 2G- 2nd Generation
- 3G- 3rd Generation
- 4G- 4th Generation
- 5G- 5th Generation
- CDMA full form- Code Division Multiple Access
- DNS- Domain Name System
- GPRS- General Packet Radio Service
- GSM- Global System for Mobile Communication
- HTML- HyperText Markup language
- IP- Internet Protocol
- ISP- Internet Service Provider
- SIM- Subscriber Identity Module
- URL- Uniform Resource Locator
- VPS- Virtual Private Server
- WAN- Wide Area Network
- WIFI- Wireless Fidelity
- WLAN- Wireless Local Area Network
- WWW- World Wide Web
Computer file formats
- 4K- 4000
- GIF- Graphical Interchangeable Format
- HD- High Definition
- MP3- MPEG Audio Layer 3
- MP4-
- UHD- Ultra High Definition
Search engine optimization (SEO) and pay-per-click (PPC)
Click-Through Rate (CTR)
Cost-Per-Click, or CPC
Cost-Per-Action, or CPA
Cost-Per-Mille, or CPM
Cost-Per-Lead (CPL) and Return on Investment (ROI)
Key Performance Indicator (KPI)
Conversion rate optimization, or CRO
A user interface, or UI, and user experience, or UX
Click-Through Rate (CTR)
A/B Split testing in testing
API - Application Programming Interface SERP - Search Engine Results Page
System for managing content
Search engine marketing, or SEM
Social media marketing (SMM)
Online Reputation Management, or ORM.
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