Test 2 Flashcards
Chapter 5 and 6
CPU (central processing unit)
The brain in processors and memory. Reads data and instruction from memory and stores results in memory.
MCC (memory controller chip)
data exchange between memory and cpu. Cpu says which row of random access memory it wants and mcc gives it to cpu.
Volatile storage device
Temporary. RAW (unprocessed data) is the only kind of data storage that directly accesses CPU.
Non volatile storage device
Permanently. Ex magnetic disks (hard drive)/optical disks (CD/DVD)
Bit
Smallest unit of storage. Stores just 0 or 1. To represent: electric pulses(for cables), light beams (fiber optic) and radio waves (wireless connections).
Byte
Collection of 8 bits. Ex 01011010. Can store one character eg ‘A’.
Storage capacity (small to large)
byte, kilobyte, megabyte, gigabyte, terabyte, petabyte, exabyte, zettabyte (b,k,m,g,t,p,e,z)
Server farm
Racks of servers (data center) ex: racks of dell power edge software servers
internet of things
objects connected to internet so can interact with devices, applications and services
operating system vs application programs
operating system= programs controlling client or servers computer system.
application program= processed on client or server computers.
major operating systems
(non mobile clients) windows most popular; (mobile clients) IOS; (servers) windows and Linux
site license, license vs open source
Site license= flat fee to install software product on all company computers or computers at specific site; license= right to use specified number of copies; open source= no license fee (firefox ex)
native app
Application developed to run on particular platform or device. Ex Apple app store. Take advantage of operating system features installed on that platform.
web app
Application designed to run on any device or browser.
How many patterns can one byte make?
256
Why IS uses bit?
simple, most efficient way to represent and manipulate data using 2 state nature of electronic components.
Native applications development languages etc
Objective-C, Java; professional programmers specific operating system, high skill, high difficulty,
Web applications development languages etc
html5, css3; not related to specific operating system; low to high skill; easy to hard difficulty
Collaboration vs cooperation
Collab= feedback and iteration.
3 criteria for successful collab?
Successful outcome, growth in team capability, meaningful and satisfying experience.
4 primary purposes of collab?
Become informed, make decisions, solve problems, manage projects
More on making decisions for collaboration
structured vs unstructured and operational, managerial and strategic. Unstructured strategic need most collab.
requirements for collab in IS
Hardware, software, data and metadata, procedures and people.
What is the cloud
Elastic leasing of pooled computer resources over the internet.