HUMAN-COMPUTER NTERACTION How many computers in your house? in your pockets? PC PDA TV, VCR, DVD, HiFi phone, camera cable /satellite TV smart card card with microwave, cooker magnetic strip? washing machine electronIc car key central heating USB memory security system try your pockets and can you think of more? bags
How many computers … in your house? – PC – TV, VCR, DVD, HiFi, cable/satellite TV – microwave, cooker, washing machine – central heating – security system can you think of more? in your pockets? – PDA – phone, camera – smart card, card with magnetic strip? – electronic car key – USB memory try your pockets and bags
HUMAN-COMPUTER NTERACTION Interactivity? ong ago in a galaxy far away batch processing punched card stacks or large data files prepared long wait… line printer output and if it is not right Now most computing is interactive rapid feed back the user in control (most of the time) doing rather than thinking Is faster always better
Interactivity? Long ago in a galaxy far away … batch processing – punched card stacks or large data files prepared – long wait …. – line printer output … and if it is not right … Now most computing is interactive – rapid feedback – the user in control (most of the time) – doing rather than thinking … Is faster always better?
HUMAN-COMPUTER NTERACTION Richer interaction sensors and devices everywhere
Richer interaction sensors and devices everywhere
HUMAN-COMPUTER NTERACTION text entry devices keyboards(QWERTY et al. chord keyboards, phone pads handwriting, speech
text entry devices keyboards (QWERTY et al.) chord keyboards, phone pads handwriting, speech
HUMAN-COMPUTER NTERACTION Keyboards Most common text input device Allows rapid entry of text by experienced users Keypress closes connection causing a character code to be sent Usually connected by cable, but can be wireless
Keyboards • Most common text input device • Allows rapid entry of text by experienced users • Keypress closes connection, causing a character code to be sent • Usually connected by cable, but can be wireless