IDS 200 Study Guide - Quiz Guide: Digital Subscriber Line, Data Model, Simple Mail Transfer Protocol
26 Apr 2017
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Computer hardware a(cid:374)(cid:455) ph(cid:455)si(cid:272)al pie(cid:272)e of te(cid:272)h(cid:374)olog(cid:455). Central processing unit (cid:862)brai(cid:374)s(cid:863) of the (cid:272)o(cid:373)puter. Ele(cid:272)ts i(cid:374)stru(cid:272)tio(cid:374)s, pro(cid:272)esses the(cid:373), perfor(cid:373)s arithmetic and logical comparisons, stores some memory. Main memory/ram reads data and instructions from memory and then stores the results of the computations in main memory. Types of storage hardware: magnetic discs (also known as hard discs, ssd (solid state drives) much faster than hard discs, way more expensive, usb storage flash drives. Types of hardware client vs. server: a server is a computer that is designed to support processing requests from many remote locations and users. Essentially a pc on steroids: client pcs, tablets and smartphones that access servers. Server farms are a collection of what is typically thousands of servers. Bits and bytes: bits the means by which computers represent data; also called binary data. A bit is either a zero or one: byte 8-bit chunks of data.
