INFS1602 Study Guide - Final Guide: Server Farm, Computer Hardware, Software

• School: UNSW, UNSW Sydney
• Department: Information Systems
• Course: INFS1602
• Professor: All

Document Summary

Computer hardware: consists of electronic components and related gadgetry that input, process, output and store data according to instructions encoded in computer programs or software. Cpu: the (cid:862)brai(cid:374)(cid:863) of the (cid:272)o(cid:373)puter; sele(cid:272)ts i(cid:374)stru(cid:272)tio(cid:374)s, pro(cid:272)esses the(cid:373), perfor(cid:373)s arith(cid:373)etic and logical comparisons, and stores results of operations in memory: dual-processor: 2 cpus, quad-processor: 4 cpus. Ram/main memory: works in conjunction with cpu as cpu reads instructions and data from memory. Volatile: contents are lost when power is off. Storage hardware: save data and programs (e. g. magnetic/hard disks, usbs) Server: a computer that is designed to support processing requests from many remote computers and users. A server farm is a collection of servers. Clients: servers take requests from clients and can send web pages, email, files or data to other devices. Binary digit/bits: computers represent data using binary digits. Bytes: bits are grouped into 8-bit chunks called bytes. Hertz: cpu speed is expressed in cycles called hertz.