Vital_Wave_Consulting_Affordable_Computing_TCO11June08
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Vital_Wave_Consulting_Affordable_Computing_TCO11June08


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Model, 5 
year period, Computer Lab: 16 
computers, Smart Classroom: 32 
computers
Computer Lab - Secondary School Computer Lab - Secondary School
Mainstream Computer Mainstream Computer 
Microsoft OS Linux OS Microsoft OS Linux OS
Rural Area Urban Area
Desktop Computer Desktop Computer
Vital Wave Consulting, Inc. Confidential and Proprietary. 
Do not copy or send to third-parties in whole or in part. 
Affordable Computing for Schools in Developing Countries Page 13 of 34 
Copyright 2008 8/15/2008 
 
This table provides the total five-year TCO calculations for low-cost and secondhand computers in a 
computer lab in an urban secondary school for both Microsoft and Linux platforms. All costs in US$. 
 
 
 
 
 
 
 
 
 
5 Yr TCO % cost to TCO 5 Yr TCO % cost to TCO 5 Yr TCO
% cost to 
TCO
5 Yr TCO % cost to TCO
Form factor
Initial Costs
Total Retrofitting, Wiring and 
Infrastructure Costs $2,100 4.88% $2,100 4.85% $2,100 4.80% $2,100 4.75%
Total Hardware Costs $9,562 22.21% $9,562 22.07% $5,630 12.88% $5,630 12.73%
Total Transportation costs $0 0.00% $0 0.00% $0 0.00% $0 0.00%
Total Network Cabling Costs $865 2.01% $865 2.00% $865 1.98% $865 1.96%
Total Deployment Costs $128 0.30% $139 0.32% $128 0.29% $139 0.31%
Total Software - OS and 
Productivity Suite Costs $600 1.39% $0 0.00% $280 0.64% $0 0.00%
Total Software - Anti-virus Costs $96 0.22% $0 0.00% $96 0.22% $0 0.00%
TOTAL INITIAL COSTS $13,351 31.01% $12,666 29.23% $9,099 20.81% $8,734 19.75%
Recurrent costs 
Total Training Costs $10,620 24.67% $10,775 24.87% $10,620 24.29% $10,775 24.36%
Total Internet Costs $2,100 4.88% $2,100 4.85% $2,100 4.80% $2,100 4.75%
Total Electricity Costs $202 0.47% $202 0.47% $1,219 2.79% $1,219 2.76%
Total Subscriptions Costs $384 0.89% $0 0.00% $384 0.88% $0 0.00%
Total Service (Tier 2 and 3 
support) Costs $2,432 5.65% $2,639 6.09% $1,904 4.35% $2,066 4.67%
Total Tier 1 Support Costs $10,920 25.36% $11,848 27.34% $10,920 24.98% $11,848 26.79%
Total Consumables Costs $405 0.94% $405 0.93% $405 0.93% $405 0.92%
TOTAL RECURRENT COSTS $27,063 62.86% $27,969 64.54% $27,552 63.02% $28,413 64.24%
Hidden 
Total Keyboard/Mouse 
Replacement Costs $400 0.93% $400 0.92% $164 0.38% $164 0.37%
Total Replacement Computers 
Repurchase & Deployment Costs $0 0.00% $0 0.00% $4,276 9.78% $4,207 9.51%
Total Informal Support & Downtime 
Costs $1,120 2.60% $1,120 2.58% $1,120 2.56% $1,120 2.53%
Total Theft or Damage Losses Costs $500 1.16% $500 1.15% $254 0.58% $254 0.57%
Total UPS replacement battery 
pack Costs $400 0.93% $400 0.92% $400 0.91% $400 0.90%
Total End-of-Life Costs -$259 -0.60% -$247 -0.57% $282 0.64% $306 0.69%
Total Plannning Costs $479 1.11% $527 1.22% $575 1.31% $632 1.43%
1 00% 1 10% 1 25% 1 38%
TOTAL HIDDEN COSTS $2,640 6.13% $2,700 6.23% $7,070 16.17% $7,083 16.01%
Total TCO $43,053 100.00% $43,334 100.00% $43,721 100.00% $44,229 100.00%
TCO per seat $2,691 $2,708 $2,733 $2,764
Computer Lab - Secondary School
Total Cost of Ownership Model, 5 
year period, Computer Lab: 16 
computers, Smart Classroom: 32 
computers
Computer Lab - Secondary School
Urban Area Urban Area
Linux OSMicrosoft OS Linux OS Microsoft OS
Low-cost Computer Secondhand Computer 
Desktop Computer Desktop Computer
Vital Wave Consulting, Inc. Confidential and Proprietary. 
Do not copy or send to third-parties in whole or in part. 
Affordable Computing for Schools in Developing Countries Page 14 of 34 
Copyright 2008 8/15/2008 
 
 
This table provides the total five-year TCO calculations for ultra low-cost computers in a computer lab 
and smart classroom in an urban secondary school for both Microsoft and Linux platforms. All costs in 
US$. 
 
 
 
 
 
 
 
5 Yr TCO % cost to TCO 5 Yr TCO % cost to TCO 5 Yr TCO % cost to TCO 5 Yr TCO % cost to TCO
Form factor
Initial Costs
Total Retrofitting, Wiring and 
Infrastructure Costs
$2,100 5.00% $2,100 4.97% $1,398 2.13% $1,398 2.14%
Total Hardware Costs $5,491 13.08% $5,491 12.99% $11,397 17.39% $11,397 17.46%
Total Transportation costs $0 0.00% $0 0.00% $0 0.00% $0 0.00%
Total Network Cabling Costs $173 0.41% $173 0.41% $173 0.26% $173 0.26%
Total Deployment Costs $128 0.30% $139 0.33% $192 0.29% $208 0.32%
Total Software - OS and 
Productivity Suite Costs $600 1.43% $0 0.00% $1,200 1.83% $0 0.00%
Total Software - Anti-virus Costs $96 0.23% $0 0.00% $192 0.29% $0 0.00%
TOTAL INITIAL COSTS $8,588 20.45% $7,903 18.70% $14,552 22.21% $13,176 20.18%
Recurrent costs 
Total Training Costs $10,620 25.29% $10,775 25.49% $15,850 24.19% $16,000 24.51%
Total Internet Costs $2,100 5.00% $2,100 4.97% $2,100 3.20% $2,100 3.22%
Total Electricity Costs $127 0.30% $127 0.30% $231 0.35% $231 0.35%
Total Subscriptions Costs $384 0.91% $0 0.00% $768 1.17% $0 0.00%
Total Service (Tier 2 and 3 
support) Costs $1,904 4.53% $2,066 4.89% $2,792 4.26% $3,029 4.64%
Total Tier 1 Support Costs $10,920 26.00% $11,848 28.03% $16,380 25.00% $17,772 27.22%
Total Consumables Costs $405 0.96% $405 0.96% $405 0.62% $405 0.62%
TOTAL RECURRENT COSTS $26,460 63.01% $27,321 64.64% $38,526 58.80% $39,537 60.56%
Hidden 
Total Keyboard/Mouse 
Replacement Costs $0 0.00% $0 0.00% $0 0.00% $0 0.00%
Total Replacement Computers 
Repurchase & Deployment Costs $4,688 11.16% $4,699 11.12% $10,027 15.30% $10,043 15.38%
Total Informal Support & Downtime 
Costs $1,120 2.67% $1,120 2.65% $1,120 1.71% $1,120 1.72%
Total Theft or Damage Losses Costs $570 1.36% $570 1.35% $855 1.30% $855 1.31%
Total UPS replacement battery 
pack Costs $200 0.48% $200 0.47% $400 0.61% $400 0.61%
Total End-of-Life Costs -$266 -0.63% -$242 -0.57% -$617 -0.94% -$569 -0.87%
Total Plannning Costs $632 1.51% $695 1.65% $661 1.01% $727 1.11%
1 25% 1 38% 1 30% 1 43%
TOTAL HIDDEN COSTS $6,944 16.54% $7,043 16.66% $12,446 18.99% $12,576 19.26%
Total TCO $41,992 100.00% $42,266 100.00% $65,523 100.00% $65,290 100.00%
TCO per seat $2,625 $2,642 $2,048 $2,040
Total Cost of Ownership Model, 5 
year period, Computer Lab: 16 
computers, Smart Classroom: 32 
computers
Computer Lab - Secondary School Smart Classrooom 1:1 Scenario, Secondary
Urban Area Urban Area
Ultra Low-cost Computer Ultra Low-cost Computer
Subnotebook Computer Subnotebook Computer
Microsoft OS Linux OS Microsoft OS Linux OS
Vital Wave Consulting, Inc. Confidential and Proprietary. 
Do not copy or send to third-parties in whole or in part. 
Affordable Computing for Schools in Developing Countries Page 15 of 34 
Copyright 2008 8/15/2008 
 
This table provides the total five-year TCO calculations for mainstream computers in a computer lab in 
an urban primary school for both Microsoft and Linux platforms. The main distinction between the 
TCO for primary and secondary schools are teacher\u2019s salaries, which are assumed to be US$7 per hour in 
secondary schools and US$6 per hour in primary schools. All costs in US$. 
 
 
 
 
5 Yr TCO % cost to TCO 5 Yr TCO % cost to TCO
Form factor
Initial Costs
Total Retrofitting, Wiring and 
Infrastructure Costs $2,100 4.41% $2,100 4.38%
Total Hardware Costs $13,562 28.48% $13,562 28.28%
Total Transportation costs $0 0.00% $0 0.00%
Total Network Cabling Costs $865 1.82% $865 1.80%
Total Deployment Costs $128 0.27% $139 0.29%
Total Software - OS and 
Productivity Suite Costs $600 1.26% $0 0.00%
Total Software - Anti-virus Costs $96 0.20% $0 0.00%
TOTAL INITIAL COSTS $17,351 36.44% $16,666 34.76%
Recurrent costs 
Total Training Costs $10,480 22.01% $10,635 22.18%
Total Internet Costs $2,100 4.41% $2,100 4.38%
Total Electricity Costs $392 0.82% $392 0.82%
Total Subscriptions Costs $384 0.81% $0 0.00%
Total Service (Tier 2