Computer Basics

Whole the function perform at CPU , therefore it is heart of Computer

A standard full-sized computer keyboard typically has 104 to 108 keys, depending on the layout and manufacturer.

VDU stands for Visual Display Unit, which is a technical term for a computer monitor.

A flip-flop is a bistable multivibrator that serves as the basic building block for digital memory circuits in computers.

UNIVAC (Universal Automatic Computer) is widely recognized as one of the first generation computers, which used vacuum tubes.

VDU stands for Visual Display Unit, a standard term for output devices that display information visually.

The IBM 700 series, including the 701 and 702, were early computers that transitioned the industry into the second generation by utilizing transistors.

RAM stands for Random Access Memory, which is the volatile memory used by a computer to store data currently in use.

The NCR 395 was an electronic accounting machine introduced in the 1960s, typically associated with third-generation computer technology.

CPU stands for Central Processing Unit, the primary component of a computer that performs most of the processing inside the machine.

IP stands for Internet Protocol, which is the set of rules governing the format of data sent via the internet or local network.

WWW stands for World Wide Web, the information system where documents and other web resources are identified by URLs.

Hard disks have significantly faster data access and transfer speeds compared to optical media like CDs or magnetic media like floppy disks.

DOS stands for Disk Operating System, a platform-independent operating system that was the dominant OS for IBM PC compatible computers in the 1980s.

Binary Coded Decimal (BCD) is typically represented using 6 bits in early computing systems, allowing for 64 distinct characters. While 4-bit BCD exists for digits, the term 'BCD code' in this context refers to the 6-bit alphanumeric character set.

VLSI stands for Very Large Scale Integration, which is the process of creating an integrated circuit by combining thousands of transistors into a single chip.

George Boole was an English mathematician who invented Boolean algebra, which is the basis for modern digital logic.

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules, primarily to protect the computer from unauthorized access.

MICR (Magnetic Ink Character Recognition) is used by banks to process checks quickly and accurately by reading the magnetic ink characters at the bottom of the document.

RAM (Random Access Memory) is a form of computer memory that can be read and changed in any order, typically used to store working data and machine code currently in use.

Standard ASCII uses 7 bits to represent characters, which allows for 2^7 = 128 unique characters.

6-bit BCD uses 6 bits to represent characters, allowing for 2^6 = 64 unique characters.

ASCII stands for American Standard Code for Information Interchange, which is the standard character encoding for electronic communication.

BASIC (Beginner's All-purpose Symbolic Instruction Code) was developed by John G. Kemeny and Thomas E. Kurtz at Dartmouth College in 1964.