unit 1 and 2

unit 1 and 2

1. unit 2

   • cpu
     • CPU (pronounced as separate letters) is the abbreviation for central processing unit. Sometimes referred to simply as the central processor, but more commonly called a processor
   • ram
     • Random access memory, or RAM, is one of the most important components of not only desktop PCs, but laptops, tablets, smartphones, and gaming consoles
   • virlial memmory
     • In computing, virtual memory is a memory management technique that provides an "idealized abstraction of the storage resources
   • seccondery sorage
     • Secondary storage refers to storage devices and media that are not constantly accessible by a computer system. Examples include external hard drives,

2. unit 1

   • networks
     • WPAN
       • A wireless personal area network (WPAN) is a personal, short distance area wireless network for interconnecting devices centered around an individual person's workspace.
     • WAN
       • A computer network that spans a relatively large geographical area. Typically, a WAN consists of two or more local-area networks (LANs).
     • LAN
       • A local area network is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building.

3. storage