UNIT – I

Introduction to Computers– Types of Computers – Micro, Mini, Mainframe and Super Computer, Architecture of a Computer System–Processor (CPU) – Types and their specifications (Intel: Celeron, P4 family, Xeon, dual-core, quad-core, core 2 duo, i3,i5,i7 and AMD), ALU, Memory – Types, Storage, Semiconductor memories: RAM, ROM, PROM, EPROM, EEPROM, Static and Dynamic, Cache Memory, Secondary Storage Devices -Types, Capacity, Popular Brands, Standards, Interface, Concept of Tracks, Sector, Cylinder and Cluster. Jumper setting, CMOS setting, Input/Output Devices. Serial Port and Parallel Port–Principle of Communication, Types of Connecting Devices, Interface Standards, Connectors. Concept of Operating System–Types of Operating Systems, Functions of an Operating System, Need of OS, Batch Processing, Multi-processing, Single user & Multi-user OS, Distributed and Time-Sharing Operating Systems, Introduction to Unix, Linux, Windows, Windows NT systems.

Laptop- Identifying the Chips and Components, Troubleshooting faults.