computer

[Audio] Generation of computer The generation of computers refers to the different stages of development of computers based on improvements in technology, size, speed, and memory. Computers are generally divided into five generations..

[Audio] 1️⃣First Generation of Computers (1940–1956) Technology used: Vacuum Tubes Features: Consumed a lot of electricity and produced much heat. Very expensive and slow compared to modern computers. Examples: ENIAC UNIVAC I.

[Audio] 2️⃣ Second Generation of Computers (1956–1963) Technology used: Transistors Features: Transistors replaced vacuum tubes. Smaller, faster, and more reliable than first-generation computers. Examples: IBM 1401 IBM 7094.

[Audio] 3️⃣ Third Generation of Computers (1964–1971) Technology used: Integrated Circuits (IC) Features: Integrated circuits (ICs) replaced transistors. Keyboard and monitor were introduced for input and output. Examples: IBM System/360 PDP-8.

[Audio] 4️⃣ Fourth Generation of Computers (1971–Present) Technology used: Microprocessors Features: Microprocessors were developed. Graphical User Interface (GUI) and networking developed. Examples: IBM PC Apple Macintosh.

[Audio] 5️⃣ Fifth Generation of Computers (Present and Future) Technology used: Artificial Intelligence (AI) Features: Based on Artificial Intelligence and advanced technologies. Can understand natural language and learn from data. Examples: AI-based systems like voice assistants and smart computers..

[Audio] Measurement Units of processesing speed and Storage Unit Computers use different measurement units to describe how fast they process data and how much data they can store.

[Audio] 1️⃣ Measurement Unit of Processing Speed The processing speed of a computer mainly refers to how fast the Central Processing Unit (CPU) can execute instructions. Hertz (Hz) Processing speed is measured in Hertz (Hz). 1 Hertz = 1 cycle per second. Common units of processesing speed: Unit Meaning Kilohertz (kHz) 1,000 cycles per second Megahertz (MHz) 1,000,000 cycles per second Gigahertz (GHz) 1,000,000,000 cycles per second Example: A 3 GHz processor can perform about 3 billion cycles per second, which means it can process instructions very quickly..

[Audio] 2️⃣ Measurement Unit of Storage Storage units measure how much data a computer can store in memory devices such as hard disks, SSDs, or USB drives. Bit The smallest unit of data. Can be either 0 or 1. Byte 1 Byte = 8 Bits Used to store a single character like a letter or number. Common Storage units Unit Size Kilobyte (KB) 1024 Bytes Megabyte (MB) 1024 KB Gigabyte (GB) 1024 MB Terabyte (TB) 1024 GB Example: A small text file may be a few KB. A photo may be MB. A laptop storage may be 256 GB or 1 TB..